JPH0962630A - General application program sharing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable editing and printing on a secondary terminal by using an application program at the same level as the level of other commands even when a command for external equipment control is executed from a secondary- side terminal to which the application program is not installed. SOLUTION: A user event is transferred to a primary-side terminal and made to reach an application execution means 11. The application execution means 11 inspects the state of an operation right control means 14, makes a remote printing execution means 15 start snatch print information when confirming that the primary-side terminal does not have the operation right, and requests a communication control means 18 to perform a process so that the print information is transmitted to the secondary-side terminal through a communication line. The application execution means of the secondary-side terminal having received the print information requests a printing means such as a printer through a print instruction execution means to perform printing operation. Consequently, the editing and printing on the secondary terminal can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general-purpose application program sharing system, that is, a general-purpose application program for a plurality of terminals (personal computers).
More specifically, it is possible to share a general-purpose application program that updates the display screen based on user command input and character input, such as a word processor and a spreadsheet, with a remote party. The present invention relates to a screen sharing general-purpose application program sharing system.

A user of a plurality of communication terminals connected by a communication line such as a telephone line, ISDN, LAN, etc., talks by voice and draws on a common document displayed on the screen, or communicates while instructing with a pointer. A teleconference system (so-called video conference system) that can explain to the other party has already been put to practical use. In such a teleconference system, there is a demand for a technology capable of directly sharing a general-purpose application program such as a word processor or a spreadsheet.

[0003]

2. Description of the Related Art There are a centralized system and a distributed system as a system in which an existing general-purpose application program is directly shared by a plurality of terminals without modification. In the distributed method that does not require a high-speed communication line, not only the input event input to the application process is sent to the application process of its own terminal, but also to the application process of the communication partner terminal, so that the application program can be shared It is feasible. Such a technique is disclosed, for example, in "Dialogue Support Device" of Japanese Patent Laid-Open No. 3-17763.
Japanese Patent Laid-Open No. 4-186456, “Joint Information Processing System and Workstation”, Japanese Patent Laid-Open No. 4-307648, “Group Joint Working Device”, Japanese Patent Laid-Open No. 5-233507, “Group Joint Working Message Communication System” ] And the like.

On the other hand, by transferring the input operation right of the shared application program among the users,
It has been proposed to control such that a situation in which a plurality of users make inputs at the same time can be avoided. Examples of such techniques include "communication terminal conference system" in JP-A-63-1139, "joint work support system" in JP-A-4-111151, and "joint work for JP-A-5-46559". Information processing device "and the like.

Furthermore, there is also a technique of sharing the application program by transmitting not only the input event but also the drawing command of the application program operating on one terminal to the other terminal to realize the same screen on both terminals. Being developed. Such a technique is disclosed, for example, in JP-A-4-186456, "Cooperative information processing system and workstation", JP-A-6-223010, "Remote collaborative work implementation method and transmission side apparatus and reception side apparatus",
It is disclosed in, for example, "Distributed Application Execution Device and Method" of Japanese Patent Laid-Open No. 5-46568.

[0006] Further, there is also a technique for transmitting a difference between a screen after being drawn and a screen before being changed as bitmap data to a remote terminal instead of a screen drawing command to realize screen sharing.
For example, a "workstation" disclosed in JP-A-6-161957 has been developed.

Furthermore, as a method of displaying a handwritten comment or a pointer on a screen displayed by a general-purpose application program having no handwriting function or pointer function, bitmap information on the screen displayed by the general-purpose application program or general-purpose information is displayed. A system has also been developed in which bitmap information generated by giving a print command to an application program is displayed on a specially developed shared electronic blackboard and then a handwritten comment or pointer is displayed.

[0008]

For example, in a system in which an application program is shared by transmitting a screen drawing command, all mouse events in the second terminal are transmitted to the first terminal to generate the second event.
It is possible to execute command instructions from all terminals to all application programs. However, when an input / output device such as a print command or a file open command, or a command related to control of the storage device is executed from the second terminal, only the external device connected to the first terminal is driven, The drive control of the external device connected to the second terminal cannot be performed.

Further, by transmitting a mouse event in the second terminal to the first terminal, it is possible to open or save a file in the storage device connected to the first terminal, and The specific number of people is second
There is a risk of changing the file of the first terminal from this terminal.

Furthermore, when a file in which moving image and audio information is stored is shared by some application program, audio or the like is output from an external device such as an audio output device connected to the first terminal. No audio information or video information is transferred to this terminal.

[0011]

According to the general-purpose application program sharing system of the present invention, an event such as a mouse operation is displayed on the shared application program screen in the secondary side terminal which is set to "operation right". When it occurs, the application execution means of the secondary side terminal
The user event is transferred to the primary side terminal via the communication path by the communication control means and the communication control means. The transferred event reaches the application executing means 11 and the event is processed according to the received information. At this time, when the print command is issued, the command hook means 12 resident in the primary terminal is resident.
If it is determined by, the command hook means 12 notifies the application execution means 11 to that effect. When the application execution unit 11 checks the state of the operation right control unit 14 and confirms that the primary side terminal does not have the operation right, the remote print execution unit 15 starts preemption of the print information and sets the communication path. The communication control means 18 is requested to perform processing so as to transmit the print information to the secondary side terminal via the same. Upon receiving this print information, the application execution means 22 of the secondary side terminal requests the print means such as the printer 321 to print via the print command execution means 23.

In the general-purpose application program sharing system of the present invention, when an event such as a mouse operation occurs on the shared application program screen in the secondary side terminal set to "have operation right", the secondary The user event is transferred to the primary side terminal via the communication path by the application executing means 22 and the communication control means 28 of the side terminal. The event transferred to the primary side terminal reaches the application executing means 11, and the event is processed according to the received information. At this time, when the command hook means 12 resident in the primary terminal determines that a file open command has occurred, the command hook means 12 notifies the application execution means 11 of that fact. The application execution means 11 inspects the state of the operation right control means 14, and if it is confirmed that the primary side terminal does not have the operation right, the file access control means 13 indicates to the primary side terminal of the user of the secondary side terminal. The access right to the file is checked, and if there is no access right, a local file list display request to the secondary side terminal is transmitted to the application executing means 11.

Further, in the general-purpose application program sharing system of the present invention, when a user event such as a mouse operation occurs on the shared application screen in the secondary side terminal set to "have operation right", the secondary The application execution means 22 and the communication control means 28 of the side terminal transfer the user event to the primary side terminal via the communication path. At this time, when it is determined by the command hook means 12 resident in the primary side terminal that a file save command has occurred, the command hook means 12 notifies the application execution means 11 of that fact. The application execution means 11 inspects the state of the operation right control means 14, and if it is confirmed that the primary side terminal does not have the operation right, the file access control means 13 causes the secondary side user's primary side terminal The access right to the file is checked, and if there is no access right, the current file is temporarily stored in the temporary file and then transferred to the secondary side terminal by the file transmitting / receiving means 17.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A general-purpose application program sharing system according to the present invention will be described below in detail with reference to the drawings showing an embodiment thereof.

FIG. 1 is a schematic diagram showing a basic configuration example of the system of the present invention. As shown in FIG. 1, in the general-purpose application program sharing system of the present invention, a plurality of user terminals 300 are connected via an ISDN line 100. Each user terminal 300 is composed of a so-called personal computer, and a handset 314 for a call is connected thereto.

FIG. 2 is a block diagram showing an example of a concrete hardware configuration of each user terminal 300. User terminal 300
CPU301 (central processing unit), memory 302, display control unit
303, image memory 304, display 305, keyboard interface 306, keyboard 307, mouse interface 308, mouse 309, file interface 31
0, file device such as flexible disk 311, ISDN
Communication interface 312 for connecting to line 100, dial key 313, handset 314, hook switch 3
It is composed of 15, printer interface 320, printer 321 and so on.

CPU 301, memory 302, display controller 303, keyboard interface 306, mouse interface 3
08, File interface 310, Communication interface
312 and printer interface 320 are system bus 3
16 connected to each other.

The display control unit 303 controls writing and reading of image information to and from the image memory 304 and, at the same time, displays the image information in the image memory 304 on the display 305.
Control 05. A CRT, a liquid crystal panel, an EL display panel, a plasma display or the like can be used as the display 305, and the contents of the image memory 304 are displayed. Instead of the mouse interface 308 and the mouse 309, another pointing device such as a tablet interface and an electronic pen can be connected and used, or both can be used together.

Key input information input from the keyboard 307 and pointing information input from the mouse 309 are supplied to the system bus 316 via the keyboard interface 306 and the mouse interface 308, respectively. The file device 311 is composed of, for example, a flexible disk unit, and stores a file generated by the user terminal 300 or a file received from the ISDN line 100.

The dial key 313, the handset 314 and the hook switch 315 are connected to the communication interface 312. The communication interface 312 is connected to the ISDN line 100 shown in FIG. 1 and controls communication of voice and data with other terminals.

A general-purpose application program shared by each user terminal 300 is stored in the memory 302. The operating environment of each user terminal 300 is also 3
Stored in 02.

3 and 4 are functional block diagrams showing the functional configuration of the CPU 301 of each terminal of the general-purpose application program sharing system according to the present invention, in other words, the software function.

The general-purpose application program sharing system of the present invention is a system for sharing a general-purpose application program between at least two terminals (hereinafter referred to as a primary side terminal and a secondary side terminal) connected by a network. 3 is the CP of the primary side terminal in order to realize the general-purpose application program sharing system of the present invention.
FIG. 4 is a functional block diagram showing an example of the functional configuration of the application sharing server required for U301, and FIG. 4 is an example of the functional configuration of the application sharing client required for CPU 301 of the secondary side terminal to realize the general-purpose application program sharing system of the present invention. 3 are functional block diagrams showing the above. However, in reality, each CPU 301 has a combined function shown in FIGS. 3 and 4.

The application sharing server as a function of the CPU 301 of the primary side terminal shown in FIG.
The processing request from the secondary side terminal received via the communication path is executed, and the input event on the primary side terminal, the command hook means 12, the file execution determination means 17, and the file access control means 13 are sent to the database. According to the result, the application executing means 11 for executing file open, file save, remote printing, etc. and the command to the specific device for printing, file open, file save etc. of the primary terminal are intercepted and notified to the application executer 11. Command hook means 12, a file access control means 13 for managing / controlling the access right to the file of the primary side user of the secondary side terminal, and an operation right control means for setting and controlling the state of the operation right. 14 and remote print execution means 15 for receiving print information or converting it into a standard print format file. As a result of user operation or event processing from the secondary side terminal, file execution determination means 16 for determining the type of opened file, file transmission / reception means 17 for transmitting / receiving the file to / from the secondary side terminal, and application Communication control means 18 for transferring a program screen drawing command or data to a communication partner
And a file device control means 19 for controlling the file device according to an instruction from the application execution means 11.

The application sharing client as a function of the CPU 301 of the secondary side terminal shown in FIG. 4 is transmitted mainly via the input means 21 for inputting a mouse event or an event from the electronic pen or keyboard, and a communication path. Application executing means 22 for sharing the application based on the screen drawing command and the processing request,
Print command executing means 23 for causing the printer 321 to execute the print execution command from the primary side terminal, and a storage device connected to the secondary side terminal in accordance with an input event.
A local file display means 25 for displaying a list of files in the (file device 311) on the screen, a file transmission / reception means 26 for transmitting / receiving a file to / from the primary terminal, and an operation for setting and controlling the state of the operation right. Rights control means 27,
Communication control means 28 for transferring data from the application execution means 22 to a communication partner, and application execution means
It is composed of a file device control means 29 for controlling the file device in accordance with an instruction from 22.

Some basic operation patterns of the application sharing server of the primary side terminal and the application sharing client of the secondary side terminal as described above will be described below.

(1) In the secondary side terminal, when the input means 21 to the application executing means 22 such as mouse input, pen input, keyboard input is set by the operation right control means 27 to "have operation right", , Input means
The input event from 21 is transferred to the communication partner (primary side terminal) by the application execution means 22 and the communication control means 28, and the application execution means of the primary side terminal set to "no operation right" by the operation right control means 14 11 handles user events. If the secondary side terminal is set to “no operation right”, the application executing means 22
When a mouse input, a pen input, or a keyboard input to the secondary side terminal occurs, the input means 21 of the secondary side terminal prohibits the user input at the secondary side terminal by discarding those events in the application execution means 22. .

(2) When the operation right control means 27 of the secondary side terminal receives the operation right acquisition request from the user, the operation right request message is sent to the operation right control means 14 of the primary side terminal through the communication control means 28. To send. Operation right control means for primary side terminal
Upon receiving this, 14 sets its own primary side terminal to the mode of "no operation right" and sends a confirmation message to the secondary side terminal. The operation right control means 27 of the secondary side terminal receives the operation right request acceptance message and sets its own secondary side terminal to the “operation right exists” mode, whereby the primary side terminal and the secondary side terminal are connected. Exchange of operation rights is carried out between the two. It is also possible to transfer the operation right to the secondary side terminal by the user sending an operation right transfer message to the operation right control means 14 of the primary side terminal.

(3) When an event such as a mouse operation occurs on the shared application program screen in the secondary side terminal set to “with operation right”, the application executing means 22 and the secondary side terminal are executed. The communication control means 28 transfers the user event to the primary side terminal via the communication path. The event transferred to the primary side terminal reaches the application executing means 11, and the event is processed according to the received information. At this time, when it is determined that the print command is generated by the command hook means 12 resident in the primary side terminal, the command hook means 12 notifies the application execution means 11 to that effect. When the application execution unit 11 checks the state of the operation right control unit 14 and confirms that the primary side terminal does not have the operation right, the remote print execution unit 15 starts preemption of the print information and sets the communication path. The communication control means 18 is requested to perform processing so as to transmit the print information to the secondary side terminal via the same. Upon receiving this print information, the application execution means 22 of the secondary side terminal requests the print means such as the printer 321 to print via the print command execution means 23.

(4) As in (3) above, the command hook means 12 on the primary side does not determine the generation of a print command according to the result of the mouse event on the secondary side terminal, but rather on the secondary side. By transferring a command generated by a user event to an object such as a remote printing execution button prepared on the operation panel of the terminal to the primary side terminal, the remote printing execution means 15 executes the printing process and the secondary printing is executed. It is also possible to send the print information to the side terminal.

(5) As in the above (3) and (4), the standard print format file of the shared document is transmitted by the remote print executing means 15 instead of transmitting the print information to the secondary side terminal. It is also possible to create and send the file to the secondary side terminal by the file sending / receiving means 17.

(6) When an event such as a mouse operation occurs on the shared application program screen in the secondary side terminal set to "Operational right", the application executing means 22 and The communication control means 28 transfers the user event to the primary side terminal via the communication path. The event transferred to the primary side terminal reaches the application executing means 11, and the event is processed according to the received information. At this time, when the resident command hook means 12 determines that a file open command has occurred, the command hook means 12 notifies the application execution means 11 of that fact. The application execution means 11 inspects the state of the operation right control means 14, and if it is confirmed that the primary side terminal does not have the operation right, the file access control means 13 indicates to the primary side terminal of the user of the secondary side terminal. The access right to the file is checked, and if there is no access right, a local file list display request to the secondary side terminal is transmitted to the application executing means 11.

(7) In (6) above, when the secondary side terminal has an access right, a screen for allowing the user to select which file list, the primary side terminal or the secondary side terminal, is displayed Is displayed. In (6) and (7) above, the application execution means 22 of the secondary side terminal that has received the local file list display request is the local file display means.
Ask 25 to display the file list on the secondary terminal.

(8) As described in (6) above, the command hook means 12 of the primary terminal does not determine the occurrence of the file open command based on the result of the mouse event of the secondary terminal, but the secondary side. Local file display means 25 according to a user event to an object such as a button for opening a local file arranged on the operation panel of the terminal 25
It is also possible to display a file list on the screen.

(9) As in (7) and (8) above, when the list of files in the file device connected to the secondary side terminal is displayed by the local file display means 25, the mouse is displayed. When a file open command is issued by operation, keyboard operation, etc., the local file display means 25 requests the file transmission / reception means 26 to transfer the file to the primary side terminal. The communication control means 18 of the primary side terminal transmits the received file to the file transmitting / receiving means 17
And checks whether it is possible to open the file received by the file execution determination means 16 on the primary side terminal,
If possible, it notifies the application executing means 11 to open the file using an appropriate application program.

(10) The file access control means 13 of the primary side terminal receives an inquiry from the application executing means 11 about whether or not the user of the secondary side terminal has the right to access the file in the storage device of the primary side terminal. In this case, the user is searched from a database file such as a telephone directory and the presence or absence of the access right registered in the file is answered to the application executing means 11.

(11) When the file open is requested in the above (6), (7), (8), the file is transferred by the file transmitting / receiving means 17 of the secondary side terminal. When the file execution judging means 16 on the primary side inspects whether the file can be opened, and the result can be opened on the primary side terminal, and the file further includes audio information, moving image information, etc. Is inquired about the capability of the secondary side terminal. Only when the corresponding file can be played on the secondary terminal,
Execution of file open is requested. When a file containing audio information, video information, etc. is opened by the user of the primary side terminal, the capability of the secondary side terminal is queried, and the corresponding file can be played on the secondary side terminal. Only, the transfer of the corresponding file to the secondary side terminal is executed, and further the execution of file opening is requested.

(12) File execution determination means 16 of the primary side terminal
Checks whether the file can be executed on the primary terminal from the file name, extension, identifier, and other information about the file contained in the given file, and the file further contains audio information or video information. If it is a file, it is checked whether it can be opened on the secondary side terminal, and the result is notified to the application execution means 11.

(13) File execution judging means 16 of the primary side terminal
The file execution determination means (not shown) of the secondary terminal exchanges the terminal capabilities of each other at the start of communication to create a terminal capability database file, and transfers voice information and moving image information to the secondary terminal. It is used for the occasional inspection.

(14) When an event such as a mouse operation occurs on the shared application program screen in the secondary side terminal set to “with operation right”, the application executing means 22 and the secondary side terminal are executed. The communication control means 28 transfers the user event to the primary side terminal via the communication path. The transferred event reaches the application execution executing means 11, and the event is processed according to the received information. At this time, when the resident command hook means 12 determines that a file save command has occurred, the command hook means 12 notifies the application execution means 11 of that fact. The application execution means 11 inspects the state of the operation right control means 14, and when it confirms that the primary side terminal does not have the operation right, the file access control means
The user of the secondary side terminal checks the access right to the file on the primary side terminal by 13 and, if there is no access right, the current file is temporarily saved in the temporary file and then the file sending / receiving means 17 sets the secondary side terminal. Transfer to.

(15) In the case of the above (14), if there is an access right, the current file opened by the shared application program is saved in the primary side terminal or the secondary side terminal is saved. A screen is displayed that allows the user to select whether to save to or both.
If the user chooses to save to the secondary terminal, the file is saved to the secondary terminal by the same procedure as in (14) above, but if the user chooses to save to the primary terminal Is overwritten and saved in the current file of the primary terminal.

(16) As described in (14) above, the mouse event is transferred to the application executing means 11, and the command hook means 12 of the primary side terminal does not determine the generation of the file save command, but the secondary side. It is also possible to request the transmission of the temporary file by transmitting a user event to an object such as a file saving button arranged on the operation panel of the terminal to the primary side terminal.

The operation procedure of the general-purpose application program sharing system of the present invention at the start-up will be described. FIG. 5 is a flowchart showing a procedure at the time of starting the system of the present invention. In the following description,
The source user terminal 300 is called the primary terminal, and the partner user terminal 300 is called the secondary terminal. Also, in FIG.
“●” indicates the input from the user, that is, the user uses the keyboard 3
07 or the command given by operating the mouse 309,
“Black triangle” represents input from the network, “◯” represents screen output, and “Δ” represents output to the network.

The operation procedure of the general-purpose application program sharing system of the present invention at the time of startup will be described below with reference to the flowchart of FIG.

At the primary terminal in the initial state (S0
0) When the handset 314 is off-hook, the display 305 displays the initial screen as shown in the schematic view of FIG. 6, for example. On this initial screen, a list of application programs currently started and registered application programs, that is, sharable application programs, and a list (telephone directory) of parties to whom the application programs can be shared are displayed. (S11). Now on this initial screen mouse 3
By operating 09, you can select the application program and the other party by pointing the pointer to the application program name you want to share and double-clicking it .

When the application program and the other party's name are given numbers for identifying them, the ten keys on the keyboard 307 are directly operated, or the ten keys on the screen of the display 305 are operated by the mouse 309.
It is also possible to select by pointing with.

In this way, when the user determines the partner terminal and the application program to be shared in the primary terminal, a voice line connection request is issued to the partner terminal (secondary terminal). After that, the primary side terminal waits for connection of the line (S12). In addition, in the line connection request,
If you can add the name of the application program you want to share, the name of the sender, etc., add it and issue it.

On the other hand, in the secondary side terminal in the initial state
(S00), when a line connection request from the primary side terminal as described above is received, a ringing tone is first generated and an initial screen as shown in the schematic diagram of FIG. 7 is displayed.
To be displayed. After that, the secondary side terminal waits for a response from the user (S21).

On the screen shown in FIG. 7, the name of the sender, the name of the application program that the sender desires to share, and the dialog boxes of "respond" and "not respond" are displayed. If the user of the secondary terminal operates the mouse 309 to select the "answer" dialog box or raises the hook switch 315 of the handset 314, the primary terminal accepts the line connection request. Will be sent. As a result, the primary side terminal and the secondary side terminal are brought into a state in which a voice conversation using the handset 314 is possible.

When the primary side terminal and the secondary side terminal are connected by the voice line as described above, the primary side terminal issues a data line connection request and then waits for a data call connection. It becomes (S13). On the other hand, the secondary side terminal is in the waiting state for receiving a data call after the voice line is connected (S2
2). When the data call from the primary side terminal arrives in this state, the secondary side terminal returns an incoming call response to the primary side terminal.

When the data line is connected, the secondary side terminal sends a sharing acceptance message to the primary side terminal. When the primary side terminal receives the sharing acceptance message, the primary side terminal and the secondary side terminal start mutual capability exchange and wait for the completion thereof (S14, S23). The result of the capability exchange is stored as a terminal capability file at the primary and secondary terminals, respectively. In this terminal capability file, for example, basic hardware information, extended hardware information, playable audio file format, playable video file format, etc. used on the other terminal are defined. Application execution means 11, 22
Referenced by

When the capacity exchange ends, the primary side terminal activates the application sharing server, and also activates the application program to be shared if it is not activated, and the application sharing client is activated on the secondary side terminal. To wait for
Five) .

As shown in FIG. 3, the application sharing server activated on the primary side terminal determines the operation right control means 14 for controlling the operation right to the application program to be shared, and the type of the file to be opened. File execution judging means 16, command hook means 12 for intercepting an instruction to a certain system, managing file access right to the primary side terminal by the user of the secondary side terminal /
It is composed of a file access control means 13 for controlling, a remote print executing means 15 for processing a remote print request from the secondary side terminal, and the like.

After this, a state of waiting for the start of transmission of the screen drawing information is set (S16).

When the capability exchange is completed, the secondary side terminal activates the application sharing client and waits for the window size notification from the primary side terminal (S2
Four) . As shown in FIG. 4, the application sharing client started on the secondary side terminal displays the operation right control means 27 for controlling the operation right to the application program to be shared, and the file list of the secondary side terminal on the screen. And a local file display means 25 for displaying an event, an input means 21 for processing an event input from a user, a print command execution means 23 for executing a print command from the primary side terminal, and the like.

In this state, the application sharing preparation completion message is notified to the primary side terminal.

In the primary side terminal, when the application sharing server confirms that the application sharing client is activated, it checks the activation state of the application program to be shared, and if it is not activated, activates it. The window is not displayed in both the application sharing server of the primary side terminal and the application sharing client of the secondary side terminal in this state. Upon confirming that the application program to be shared is started, the application sharing server of the primary terminal sends the window size of the application program to be shared to the application sharing client of the secondary terminal. The application sharing client of the secondary side terminal changes its window size to the notified size, sets the secondary side terminal to "no operation right", and then notifies the primary side terminal of the application sharing preparation message. Then, it displays its own window 520 on the display 305.

Upon receiving the application sharing preparation completion message from the secondary side terminal, the application sharing server of the primary side terminal sets the primary side terminal to the "operation right" state, and then starts the screen drawing command transmission. To do.
After that, the application sharing client of the secondary side terminal executes the drawing process according to the screen drawing command transmitted from the primary side terminal.

Specifically, the following control is performed. When the primary terminal receives the application sharing preparation completion message, the application sharing server issues a screen redrawing message to the shared application program, and sends a screen drawing command from the application program to the secondary terminal. To start.
In the secondary side terminal, the application sharing client performs the drawing process according to the received screen drawing command,
The same screen is displayed on both the primary and secondary terminals, and the application programs are shared (Sc).

It should be noted that "no operation right", that is, the operation panel 510 of the secondary terminal that does not hold the operation right is in a state in which buttons other than the operation right button cannot be used, and the window 530 of the application sharing client is displayed. All events input from the keyboard 307 and mouse 309 for the displayed shared application program are discarded.

FIGS. 8 and 9 are schematic diagrams showing examples of screens when a word processor is shared, FIG. 8 showing a primary side terminal, and FIG. 9 showing a secondary side terminal, respectively.

In FIG. 8, a portion surrounded by a thick line shows a general-purpose word processor application program window 520 shared by the primary side terminals. At the top of the window 520, there is displayed an operation panel 510 having buttons and the like for displaying the status of application sharing, operation rights, and a list of local files. Further, in FIG. 9, a portion surrounded by a thick line shows a window 530 of a general-purpose word processor application program shared by the secondary side terminals. At the top of this window 530, an operation panel 5 having buttons and the like for displaying the status of application sharing, operating rights, and a list of local files
10 is displayed.

Here, each button of the operation panel 510 will be described. In FIG. 8 and FIG. 9, buttons such as “operation right”, “file open”, “save”, and “print” are shown from the left. However, the operation panel 510 may be provided with various function buttons other than these. The "Operation right" button is valid only when the terminal does not have the operation right, and the "File open", "Save", and "Print" buttons are effective only when the secondary terminal has the operation right. is there.

When the "operation right" button is clicked with the mouse 309, the terminal acquires the operation right and becomes the "operational right" state, and the other terminal becomes "no operation right" state. If the user has the operation right and clicks the "file open" button with the mouse 309, a list of files in the file device of the secondary terminal is displayed, and the selected file can be executed and shared. By clicking the "Save" button with the mouse 309, the document opened by the currently shared application program can be saved in the file device of the secondary terminal. By clicking the "Print" button with the mouse 309, the document opened by the currently shared application program can be output to a printing device such as a printer device connected to the secondary terminal.

In this state, input from the mouse 309 on the shared application program screen on the application sharing client of the secondary side terminal, keyboard 307
The user event input from is discarded because it does not have the operation right. However, since user events for other windows are not discarded, the operation of pressing the “operation right” button on the operation panel 510 with the mouse 309 can be executed. The input event is discarded by the window system API (Application Prog
ramming Interface).

As described above, the general-purpose application program sharing system of the present invention is activated, and the application program can be shared between the primary side terminal and the secondary side terminal. 10 and 11 are state transition diagrams of the application sharing client of the secondary side terminal during the sharing of the application program. However, the figure
10 shows a state transition diagram for a user event, and FIG. 11 shows a state transition diagram for a network event.

On the secondary side terminal, click the "operation right" button of the operation panel 510 on the screen shown in FIG.
By operating and clicking, input from the keyboard 307 and mouse 309 for the shared application program on the application sharing client becomes possible, and at the same time, as shown in FIG. 13, the operation panel is displayed.
The "Operation right" button on 510 is disabled, and the "File open", "Save", and "Print" buttons are enabled. When the "operation right" button is clicked on the secondary terminal by operating the mouse 309 as described above, only the "operation right" button is enabled on the primary terminal as shown in Fig. 12. , Other buttons are disabled.

As shown in FIG. 10, the user event for the application sharing client is transferred to the primary side terminal through the communication control means 28, and the application sharing server of the primary side terminal receives the received mouse event, The following processing is executed for the keyboard event.

First, the operation related to the file open command will be described with reference to FIG. 14, which is a state transition diagram of the application sharing server of the primary side terminal.

In the secondary side terminal, when the “file open” button arranged on the operation panel 510 displayed on the display 305 is clicked by the operation of the mouse 309 when there is an operation right, the application of the primary side terminal A file open command is sent to the shared server.
When the application sharing server of the primary side terminal receives the file open command (S31), it checks whether the secondary side terminal has the file access right (S32). Display the file list in the file device of the secondary terminal in the dialog box on the screen of both the primary and secondary terminals.

This state is shown in the schematic diagram of FIG. 15 for the primary side terminal and in the schematic diagram of FIG. 16 for the secondary side terminal. However, it may be displayed in a window other than the dialog box. As shown in Fig. 15 and Fig. 16, the dialog box displayed on the screen includes "Open" button, "Cancel" button, etc., but other function buttons are not available. There are also cases.

Then, for example, on the screen of the secondary side terminal shown in FIG. 16, the user selects a file from the dialog box and further clicks the "Open" button with the mouse 3
When clicked at 09, the selected file is transferred to the primary side terminal by the file transmitting / receiving means 26. The application sharing server of the primary side terminal determines whether the transmitted file can be opened by the primary side terminal by the file execution determination means 16 (S35), and if possible, executes the file by an appropriate application program. .

If the secondary side terminal has the file access right, the list as shown in FIG. 17 that allows the user to select which of the primary side and secondary side files to open Display the display terminal selection screen (S33).
When the user selects this terminal (secondary terminal) on this screen, the application sharing server of the primary terminal requests the application sharing client of the secondary terminal to display the local file list, and the user When the other terminal (primary side terminal) is selected by, the application sharing server of the primary side terminal performs file list display processing (S34).

If the selected file is not a moving image or audio information file (S36), the application sharing server of the primary terminal immediately executes the file as described above. However, when the selected file is a moving image or audio information file (S36), the application sharing server of the primary side terminal requests the application sharing client of the secondary side terminal to execute the file. This file execution request will be described later.

Further, the same operation can be realized by making the command hook means 12 resident in the primary side terminal regardless of the use of the object such as the button in the secondary side terminal as described above. It is possible. When an event such as a mouse operation occurs, the user event is transferred to the primary side terminal via the communication path by the application executing means 22 and the communication control means 28 of the secondary side terminal. The transferred event reaches the application execution executing means 11, and the event is processed according to the received information. At this time, when the resident command hook means 12 determines that a file open command has occurred, the command hook means 12 notifies the application execution means 11 of this (step
S37). Then, the state of the presence or absence of the operation right by the operation right control means 14 is determined (S38), as a result, there is no operation right,
Also, only when the user of the secondary terminal does not have the file access right, the local terminal display command is transmitted to the secondary terminal to request the list display.

Next, the operation related to the file save command will be described with reference to FIG. 18, which is a state transition diagram of the application sharing server of the primary side terminal.

On the secondary side terminal, if there is an operation right, the "Save" button arranged on the operation panel 510 is the mouse.
When the button is clicked by the operation of 309, the local file save command is transmitted to the application sharing server of the primary side terminal. When the application sharing server of the primary terminal receives the local file save command (S41)
, Check whether the secondary terminal has file access right (S42), and if not, save the document opened by the shared application program as a temporary file in the file device of the primary terminal. At the same time, it is transferred to the secondary side terminal by the file transmitting / receiving means 17.

Further, the same operation can be realized by making the command hook means 12 resident in the primary side terminal regardless of the use of the object such as the button in the secondary side terminal as described above. It is possible. When an event such as a mouse operation occurs, the user event is transferred to the primary side terminal via the communication path by the application executing means 22 and the communication control means 28 of the secondary side terminal. The transferred event reaches the application execution executing means 11, and the event is processed according to the received information. At this time, when the resident command hook means 12 determines that a file save command has occurred, the command hook means 12 notifies the application execution means 11 of this (step S4).
3). Then, the state of the presence or absence of the operation right by the operation right control means 14 is determined (S44), and as a result, the operation right is not shared and the user of the secondary side terminal does not have the file access right. The document opened by the application program is saved in a temporary file and is transferred to the secondary side terminal by the file transmitting / receiving means 17.

When the secondary side terminal has the file access right, the user can select the terminal on the primary side or the secondary side to save the file, as shown in FIG. Display the screen (S45). When the user sees this screen and inputs an instruction to save the file on the primary side terminal, the file is overwritten and saved, and when an instruction to save the file on the secondary side terminal is input, the same process is performed.

Next, the operation relating to the print command will be described with reference to FIG. 20, which is a state transition diagram of the application sharing server of the primary side terminal.

In the secondary side terminal, when the operation right is given, the "print" button arranged on the operation panel 510 is the mouse.
When clicked by the operation of 309, a print start command is transmitted to the application sharing server of the primary side terminal. When the application sharing server of the primary side terminal receives the print start command (S51), it activates the remote print executing means 15 and, after it becomes possible to intercept the print information, the application opened on the document opened by the shared application program. A print command is issued to it. Figure 21 shows the screen of the primary terminal at that time.
The schematic diagram of FIG. 22 shows the screen of the secondary side terminal.

When the information necessary for executing the printing is set and the execution of the printing is started, the remote printing executing means 15 intercepts the printing information for the system (S52) and sends it to the secondary side terminal. The primary side terminal discards the print information after the interception. Upon receiving the print information, the application sharing client of the secondary side terminal converts the print information into information that can be printed by the output device of the secondary side by the print command execution means 23, and prints the converted print information on a printer or the like. The printing means 24 outputs.

Further, the same operation can be realized by making the command hook means 12 resident in the primary side terminal regardless of the use of the object such as the button in the secondary side terminal as described above. It is possible. When an event such as a mouse operation occurs, the user event is transferred to the primary side terminal via the communication path by the application executing means 22 and the communication control means 28 of the secondary side terminal. The transferred event reaches the application execution executing means 11, and the event is processed according to the received information. At this time, when the resident command hook means 12 determines that a file print command has been issued, the command hook means 12 notifies the application execution means 11 of this (step S5).
Four). Then, the state of the presence or absence of the operation right is determined by the operation right control means 14 (S55), and as a result, the print command is transferred to the secondary side terminal only when the operation right is not present.

Further, when printing a document opened by a shared application program, it is converted into a standard print file format, and a file transmitting / receiving means
It is also possible to adopt a procedure in which the information is transmitted to the secondary side terminal by 17 and converted into printable information by the print command executing means 23 of the secondary side terminal and the printing means 24 is requested to perform the processing.

Next, the operation of the file transfer command necessary for the file execution request at the time of opening the file will be described with reference to FIG. 23, which is a state transition diagram of the application sharing server of the primary side terminal.

When the primary side terminal receives the file transferred from the secondary side terminal (S61), the file execution determining means 16 determines whether or not the file can be executed by the primary side terminal ( S62). Next, it is determined whether the file is a moving image or audio file (S63),
Further, the file execution determination means 16 inquires the capability of the partner terminal for the terminal capability file. Then, when the file can be reproduced on the secondary side terminal, the application execution means 11 of the primary side terminal requests the secondary side terminal to execute the file through the communication control means 28. As a result, a file such as voice information or a moving image is executed by an appropriate application program on the secondary side terminal. Alternatively, when a file such as voice information or a moving image in the file device connected to the primary side terminal is opened, the file executing means 16 inquires the terminal capability file about the capability of the other terminal, and the secondary side terminal Only when the file can be executed, the file is transferred by the file transfer means 17, and the execution of the file is requested. At this time, the file is opened also on the primary side terminal.

[0087]

As described in detail above, according to the present invention,
In a general-purpose application program sharing system of screen information sharing type, when a command for controlling an external device such as a storage device or a printing device is executed from the secondary side terminal where the application program is not actually installed, other commands Enables application program functionality at the same level. This solves the inconvenience of being unable to edit and print because the application program is not installed on the remote terminal, which is often seen in conventional general-purpose application program sharing systems. Can work in an environment that is almost the same as the everyday desktop environment.

Further, if the access right is set to the file of the own terminal according to the communication partner, the risk of browsing, changing or deleting the file in the terminal from outside without permission is reduced.

Further, even in the case of a remote presentation, it becomes possible to share moving image and audio information which could not be shared in the past by using means similar to the distributed program sharing system in a pseudo manner. Therefore, it is possible to share the application program in a wider scene.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a basic system configuration example of a general-purpose application program sharing system according to the present invention.

FIG. 2 is a block diagram showing a specific hardware configuration example of each user terminal of the general-purpose application program sharing system according to the present invention.

FIG. 3 is a functional block diagram showing a functional configuration example of an application sharing server necessary for a CPU of a primary side terminal of a general-purpose application program sharing system according to the present invention.

FIG. 4 is a functional block diagram showing a functional configuration example of an application sharing client necessary for the CPU of the secondary side terminal of the general-purpose application program sharing system according to the present invention.

FIG. 5 is a flowchart showing a procedure for starting up the general-purpose application program sharing system of the present invention.

FIG. 6 is a schematic diagram of an initial screen displayed on the primary terminal in the initial state of the general-purpose application program sharing system of the present invention.

FIG. 7 is a schematic diagram of an initial screen displayed on the secondary terminal in the initial state of the general-purpose application program sharing system of the present invention.

FIG. 8 is a schematic diagram showing a screen example of a primary side terminal when sharing a word processor of a general-purpose application program sharing system of the present invention.

FIG. 9 is a schematic diagram showing an example of a screen of the secondary side terminal when sharing a word processor of the general-purpose application program sharing system of the present invention.

FIG. 10 is a state transition diagram of the application sharing client of the secondary terminal with respect to a user event during application sharing of the general-purpose application program sharing system of the present invention.

FIG. 11 is a state transition diagram of the application sharing client of the secondary terminal with respect to a network event during application sharing of the general-purpose application program sharing system of the present invention.

FIG. 12 is a schematic diagram showing an example of a screen of the primary side terminal showing an operation state at the time of character input from the secondary side terminal of the general-purpose application program sharing system of the present invention.

FIG. 13 is a schematic diagram showing an example of a screen of the secondary side terminal showing an operation state at the time of character input from the secondary side terminal of the general-purpose application program sharing system of the present invention.

FIG. 14 is a state transition diagram of the application sharing server of the primary terminal regarding the operation related to the file open instruction of the general-purpose application program sharing system of the present invention.

FIG. 15 is a schematic diagram showing an example of a screen of a primary side terminal showing an operation state regarding a file open command of the general-purpose application program sharing system of the present invention.

FIG. 16 is a schematic diagram showing an example of a screen of the secondary side terminal showing an operation state regarding a file open command of the general-purpose application program sharing system of the present invention.

FIG. 17 is a schematic view of a screen for allowing the user to select which terminal of the general-purpose application program sharing system according to the present invention a file of which terminal is to be opened.

FIG. 18 is a state transition diagram of the application sharing server of the primary terminal regarding the operation related to the file saving instruction of the general-purpose application program sharing system of the present invention.

FIG. 19 is a schematic diagram of a screen that allows the user to select which terminal of the general-purpose application program sharing system of the present invention the file is stored in.

FIG. 20 is a state transition diagram of the application sharing server of the primary terminal regarding the operation related to the print command of the general-purpose application program sharing system of the present invention.

FIG. 21 is a schematic diagram showing an example of a screen of a primary side terminal showing an operation state regarding a print command of the general-purpose application program sharing system of the present invention.

FIG. 22 is a schematic diagram showing an example of a screen of the secondary side terminal showing an operation state regarding a print command of the general-purpose application program sharing system of the present invention.

FIG. 23 is a state transition diagram of the application sharing server of the primary terminal regarding the operation of the file transfer instruction necessary for the file execution request when the file is opened in the general-purpose application program sharing system of the present invention.

[Explanation of symbols]

 11 Application execution means (primary side terminal) 12 Command hook means (primary side terminal) 13 File access control means (primary side terminal) 14 Operation right control means (primary side terminal) 15 Remote print execution means (primary side terminal) 16 files Execution determination means (primary side terminal) 17 File transmission / reception means (primary side terminal) 18 Communication control means (primary side terminal) 19 File device control means (primary side terminal) 21 Input output (secondary side terminal) 22 Application execution means ( Secondary side terminal) 25 Local file display means (secondary side terminal) 23 Print command execution means (secondary side terminal) 26 File transmission / reception means (secondary side terminal) 27 Operation right control means (secondary side terminal) 28 Communication Control means (secondary side terminal) 29 File device control means (secondary side terminal)

Claims (9)

[Claims] 1. At least first and second terminals are connected via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. The second terminal includes an event hook means for intercepting and a remote print executing means for intercepting information necessary for printing and requesting the communication control means to transfer the information to another terminal. An input unit that receives an input, an operation right control unit that controls the presence or absence of an operation right that allows an event input from the input unit, and a communication control that transfers a command and data to and from another terminal via the network. And a file transmission / reception for transferring screen drawing commands and files between the device and another terminal via the network. And a printing device control means for controlling the printing device connected to itself, wherein the second terminal in which the general-purpose application program is not operating is "having the operation right" by the operation right control means.
, The event accepted by the input unit of the second terminal is transmitted to the first terminal by the communication control unit, and the printing device control unit is transmitted by the command hook unit of the first terminal. When it is determined that the print command to the first terminal is issued, the command hook unit of the first terminal activates the remote print execution unit of the first terminal, and the remote print execution unit of the first terminal is , The following print command is intercepted, and the information necessary for its execution is transmitted to the second terminal via the communication control means, and the printing device control means of the second terminal is controlled from the first terminal. A general-purpose application program sharing system, characterized in that it controls a printing device connected to itself according to the received information. 2. At least first and second terminals are connected to each other via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. The second terminal includes an event hook means for intercepting and a remote print executing means for intercepting information necessary for printing and requesting the communication control means to transfer the information to another terminal. An input unit that receives an input, an operation right control unit that controls the presence or absence of an operation right that allows an event input from the input unit, and a communication control that transfers a command and data to and from another terminal via the network. And a file transmission / reception for transferring screen drawing commands and files between the device and another terminal via the network. The second terminal in which the general-purpose application program is not operating is provided with "operation right" by the operation right control means.
When the input unit of the second terminal receives a print command in the state of being set to, the application execution unit of the second terminal prints to the first terminal via the communication control unit. Requesting execution, the application execution means of the first terminal activates the remote print execution means of the first terminal, and the remote print execution means of the first terminal intercepts subsequent print commands. The information necessary for the execution is transmitted to the second terminal via the communication control means, and the printing device control means of the second terminal is connected to itself according to the information received from the first terminal. General-purpose application program sharing system characterized in that it is designed to control a printing device that is operating. 3. The remote print executing means of the first terminal,
A standard print format file is created when a print command is received, and the file transmission / reception means of the first terminal transfers the standard print format file created by the remote print execution means to another terminal, When the file transmission / reception means of the terminal receives the standard print format file from another terminal, it requests its own print control means to print the file, and the printing device control means of the second terminal is connected to itself. 3. The general-purpose application program sharing system according to claim 1, wherein the printing apparatus is controlled to execute printing. 4. At least first and second terminals are connected via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. Command hook means for interception, file device control means for controlling a file device connected to another terminal to open a file, and when a file open command is executed, from one terminal to the other terminal Manage access rights to files /
A second access terminal for controlling an event input, an operation right control means for controlling presence / absence of an operation right for allowing an event input from the input means, and the network. The communication control means for transferring commands and data to / from another terminal via the communication terminal, and the file device control means for controlling the file device connected to itself, the general-purpose application program not operating. The terminal 2 has “operation right” by the operation right control means.
In the state of being set to, the event accepted by the input means of the second terminal is transmitted to the first terminal by the communication control means, and the file device control means by the command hook means of the first terminal. When it is determined that a file open command to the first terminal has been issued, the command hook means of the first terminal determines that the second terminal does not have the access right to the first terminal. Only when the control means confirms, the file device control means is activated, and the file device control means of the first terminal intercepts the subsequent file open command and provides the communication control means with the information necessary for its execution. To the second terminal, and the file device control means of the second terminal, in accordance with the information received from the first terminal, Generic Application program sharing system, characterized in that are no to be transmitted to the first terminal to the file receiving means open the attached controls the file system with the specified file to. 5. At least first and second terminals are connected via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. Command hook means for interception, file device control means for controlling a file device connected to another terminal to open a file, and when a file open command is executed, from one terminal to the other terminal Manage access rights to files /
A second access terminal for controlling an event input, an operation right control means for controlling presence / absence of an operation right for allowing an event input from the input means, and the network. The communication control means for transferring commands and data to and from another terminal via the communication terminal, and the file device control means for controlling the file device connected to itself, the general-purpose application program not operating. The terminal 2 has “operation right” by the operation right control means.
When the input means of the second terminal receives a file open command in the state of being set to, the file device control means of the second terminal controls the file device connected to itself. A general-purpose application program sharing system, characterized in that a specified file is opened and the file transmitting / receiving means is made to transmit to the first terminal. 6. The file for inspecting whether the first terminal can open a moving image file or an audio file in the second terminal when the opened file is a moving image file or an audio file. The file transmission / reception means, when the file execution determination means determines that the opened file can be opened by the second terminal, transmits the file to the second terminal. The general-purpose application program sharing system according to claim 2, wherein the general-purpose application program sharing system is provided. 7. At least first and second terminals are connected via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. Command hook means for interception, file device control means for controlling a file device connected to another terminal to save a file, and when a file save command is executed, from one terminal to the other terminal File access control means for managing / controlling the access right to the file, the second terminal controls the presence / absence of an operation means for accepting an event input from the input means and an input means for accepting an event input from the input means. Command and data between the operation right control means and other terminals via the network. Communication control means for transferring data, and file device control means for controlling the file device connected to itself, and the second terminal in which a general-purpose application program is not operating is operated by the operation right control means. Right "
In the state of being set to, the event accepted by the input means of the second terminal is transmitted to the first terminal by the communication control means, and the file device control means by the command hook means of the first terminal. When it is determined that a file save command to the first terminal is generated, the command hook means of the first terminal sends the file save command received from the second terminal to the second terminal by the first terminal. Only when the file access control unit confirms that the file access control unit does not have access right to the file device control unit, the file device control unit of the first terminal intercepts the subsequent file saving command. Then, the tempo created by temporarily saving as a temporary file opened by the currently shared application program is created. Re-file is transmitted to the second terminal via the file transmitting / receiving means, and the file device control means of the second terminal transfers the file received from the first terminal to the file device connected to itself. A general-purpose application program sharing system characterized by being saved. 8. At least first and second terminals are connected via a network, and a drawing command of a general-purpose application program operating in the first terminal is transmitted to the second terminal to transmit both of them. In the general-purpose application program sharing system in which the same general-purpose application program is shared by both the first and second terminals by displaying the same screen on the terminal, the first terminal includes an input unit that receives an event input. An operation right control unit that controls the presence or absence of an operation right that allows event input from the input unit; a communication control unit that transfers commands and data to and from another terminal via the network; A file transmission / reception means for transferring a screen drawing command and a file to / from another terminal via the terminal; The data and commands received from the communication control means in accordance with the general-purpose application program, and the application execution means for requesting the file transmission / reception means to transfer the screen drawing instruction generated as a result to the other terminal, and the instruction to the external device. Command hook means for interception, file device control means for controlling a file device connected to another terminal to save a file, and when a file save command is executed, from one terminal to the other terminal File access control means for managing / controlling the access right to the file, the second terminal controls the presence / absence of an operation means for accepting an event input from the input means and an input means for accepting an event input from the input means. Command and data between the operation right control means and other terminals via the network. Communication control means for transferring data, and file device control means for controlling the file device connected to itself, and the second terminal in which a general-purpose application program is not operating is operated by the operation right control means. Right "
When the input means of the second terminal receives a file save command in the state of being set to, the application execution means of the second terminal sends a file to the first terminal via the communication control means. Only when the application execution unit of the first terminal confirms that the second terminal does not have the access right to the first terminal, The file device control means of the first terminal temporarily saves as a temporary file opened by the currently shared application program, and the created temporary file is transmitted via the file transmission / reception means to the second terminal. The file device control means of the second terminal sends the file received from the first terminal to itself. A general-purpose application program sharing system characterized by being stored in a connected file device. 9. When it is confirmed by the file access control means that the second terminal has an access right to the first terminal, the first terminal specified through the input means of the second terminal is set. 9. The general-purpose application program sharing system according to claim 7, wherein a file can be stored in a file device of either or both of the first and second terminals.