JPH0652322A - Program sharing control processing method - Google Patents

Abstract

PURPOSE:To simultaneously perform cooperative work without changing an application program by converting a plotting instruction and an input to a virtual plotting instruction and virtual input/output information and analyzing those instruction and information on the reception side. CONSTITUTION:A plotting operation is performed at a first computer system 101 corresponding to the plotting instruction issued from the application program and at the same time, however, this plotting instruction is converted to the virtual plotting instruction and transmitted to a second computer system 2.01. On the other hand, the virtual input information sent from the second computer system 201 is converted to input information peculiar for the system. Then, the virtual plotting instruction transmitted from the first computer system 101 is converted to the plotting instruction peculiar for the system and plot processing is performed at the second computer system 201. Further, the input is converted to the input information inputted from a keyboard or the like and transmitted to the first computer system 101. Thus, the virtual plotting instruction and the virtual input information can be analyzed on the reception side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables a collaborative work by a group such as document writing and design work by connecting a plurality of computer systems via communication lines and enabling real-time document sharing / editing. Program sharing control processing method.

Due to the spread of LANs in recent years, there is a growing need for collaborative work such as collaborative document writing among users dispersed in remote areas, and a measure for that is desired.

[0003]

2. Description of the Related Art Conventionally, there has been software called groupware which displays the same screen on a computer system of a plurality of users in such an environment and enables a collaborative work while viewing the same screen.

[0004]

However, in this case, there is a problem in that the dedicated group software is newly developed and the user has to become familiar with the operation.

The present invention has been made to solve the above-mentioned problems, and among a plurality of computer systems connected via a communication line, an application program executed in each computer system is modified. The purpose is to enable simultaneous collaborative work without any need.

[0006]

FIG. 1 is a block diagram showing the principle of the present invention. Reference numeral 101 in the drawing is a first computer system, 201 is a second computer system, and 150 and 250 are virtual drawing commands / The conversion unit for virtual input information is shown.

In the first computer system 101, the drawing operation is performed in response to the drawing command issued by the application program, but at the same time, the drawing command is converted into a virtual drawing command, and the second computer system 2
Send to 01. The second computer system 20
The virtual input information sent from 1 is converted into system-specific input information.

In the second computer system 201, the virtual drawing command transmitted from the first computer system is converted into a drawing command unique to the system, and the drawing process is performed. In addition, the input information input from the keyboard or the like is converted into virtual input information and transmitted to the first computer system 101.

[0009]

The respective computer systems are, for example, word processors and the like, and draw a drawing command from the other party (transmitted as virtual drawing command) or input information from the other party (transmitted as virtual input information). Converts into drawing commands and input information unique to the system for processing.

According to the present invention, a drawing command and input information such as a keyboard and a mouse are acquired, converted into virtual drawing command and virtual input information and transmitted, and the receiving side interprets the virtual drawing command and virtual input information. The main feature is to do.

The conventional technique enables the users to carry out the collaborative work without making any changes to the application program such as a word processor which they are normally accustomed to, without newly developing a specific group software or the like. The difference is that the application program can be shared even if the two computer systems are different models by having the conversion / interpretation means.

[0012]

【Example】

(Embodiment 1) FIG. 2 is a block diagram of a first computer system for carrying out the program sharing control processing method of the present invention.

In FIG. 2, reference numeral 101 denotes a computer system including a main memory 103 and the main memory 103.
CP that executes the above program to control the system
U102, communication interface 111, and the CPU
A drawing processing device 109 for drawing in response to a drawing command issued by a program executed by a program 102, a video memory 110 for storing the drawing result, and the video memory 110.
A display controller 108 for reading the contents of the above and displaying on a display, and a drawing command converter 106 for receiving a drawing command specific to the computer system issued by a program executed by the CPU 102 and converting the drawing command into a virtual drawing command.
An input interface 105 for inputting information such as a keyboard and a mouse input by a user; an input buffer 104 for temporarily storing the input keyboard and mouse information; and virtual input information input from a communication interface for the computer. It is composed of an input information conversion device 107 which converts input information unique to the system.

First, C arranged on the main memory 103
The program executed by the PU 102 issues a drawing command to the drawing processing device 109 when drawing on the screen. The drawing processor 109 interprets / executes the drawing command and writes the result in the video memory 110. At the same time, the same drawing command that is input to the drawing processing device 109 is input to the drawing command conversion device 106. This drawing command is a command sequence unique to the computer system 101, and is converted to a virtual drawing command by the drawing command conversion device 106 and then transmitted to another computer system via the communication interface 111.

On the other hand, the virtual input information input from the communication interface 111 via the communication line is converted into the input information unique to the computer system 101 by the input information conversion device 107 and stored in the input buffer 104. The communication interface 1 is provided in the input buffer 104.
Input information entered from 11 and the input interface 10
The input information input from 5 is accumulated, and the main memory 1
The above-mentioned program placed on 03 is the main input buffer 1
The contents of 04 are sequentially read and the process for the input is performed.

(Embodiment 2) FIG. 3 is a block diagram of a second computer system for carrying out the program sharing control processing method of the present invention.

In FIG. 3, reference numeral 201 denotes a computer system, which is a main memory 203, a CPU 202 for controlling the system, a communication interface 211, and a virtual drawing command input from the communication interface 211 into a drawing command specific to the computer system. A drawing command conversion device 206 for converting, and a drawing processing device 209 for receiving a drawing command issued by the drawing command conversion device 206 and performing drawing.
A video memory 210 for storing the drawing result, a display controller 208 for reading the contents of the video memory 210 and displaying it on a display, and an input interface 205 for inputting information such as a keyboard and a mouse input by a user. An input buffer 204 that temporarily stores the input keyboard and mouse information, and an input information conversion device 207 that reads the contents of the input buffer and converts keyboard and mouse input information into virtual input information.

In the computer system 201, a virtual drawing command is input from the computer system as shown in FIG.
At step 06, the drawing command is converted into a drawing command specific to the computer system 201, and the drawing command is issued to the drawing processing device 209. The drawing processing device 209 interprets / executes the drawing command and writes the result in the video memory 210.

Information such as a keyboard and a mouse input by the user is input from the input interface 205 and stored in the input buffer 204. Input information conversion device 207
Reads the contents of the input buffer, converts the input information unique to the computer system 201 into virtual input information, and outputs the virtual input information to the computer system 101 shown in the first embodiment through the communication interface 211 and the communication line.

(Third Embodiment) In the case of the third embodiment, a drawing command system unique to a computer is converted into a virtual drawing command system and then converted again into a drawing command system unique to another computer. An embodiment will be described based on a command for drawing a straight line connecting two points.

First, the drawing command system of the computer system 101 described in the first embodiment is COM1, and the drawing command system of the computer system 201 described in the second embodiment is C.
OM2, virtual drawing command system COM3, drawing command system C
The mapping from the coordinate system of OM1 to the coordinate system of the virtual drawing command system COM3 is f10, the mapping from the coordinate system of the virtual drawing command system COM3 to the coordinate system of the drawing command system COM2 is f20,
The mapping of command conversion from the drawing command system COM1 to the virtual drawing command system COM3 is c1, and the mapping of command conversion from the virtual drawing command system COM3 to the drawing command system COM2 is c2.

LN is a command for drawing a straight line connecting any two points with the drawing command system COM1, L is a command for drawing a straight line connecting any two points with the drawing command system COM2, and is arbitrary with a virtual drawing command system COM3. Assuming that a command for drawing a straight line connecting two points of LINE is LINE, a command for drawing a straight line from point (x1, y1) to (x2, y2) in drawing command system COM1 is LN (x1, y1)-(x2, y2 ), And conversion to the virtual drawing command system COM3 is represented by c1 (LN) (f1 (x1, y1))-(f1 (x2, y2)) (1). If the application executed on the computer system 101 issues a straight line drawing command, the drawing command conversion device 106 executes the above (1) to convert the straight line drawing command into a virtual drawing command, and the conversion result, LINE (f1 (x1, y1))-(f1 (x2, y2)) (2) is output to the computer system 201 shown in the second embodiment through the communication line.

The conversion from the virtual drawing command system COM3 to the drawing command system COM2 is represented by c2 (LINE) (f2 (f1 (x1, y1)))-(f2 (f1 (x2, y2))) (3). Then, the drawing command converter 206 executes the above (3) to convert the virtual drawing command into a drawing command peculiar to the computer, and the drawing processor 209 converts the conversion result into L (f2 (f1 (x1, y1)). )-(f2 (f1 (x2, y2))) (4) is executed and the result is stored in the video memory 210.

(Embodiment 4) In the case of the present embodiment 4, the input information system peculiar to a computer is converted into a virtual input information system and is again converted into an input information system peculiar to another computer. An embodiment will be described based on input information on the keyboard.

First, the input information system of the computer system 101 described in the first embodiment is IN1, and the input information system of the computer system 201 described in the second embodiment is IN.
2, the virtual input information system is IN3, and the mapping of the input information conversion from the input information system IN2 to the virtual input information system IN3 is i
2. Let i1 be the mapping of input information conversion from the virtual input information system IN3 to the input information system IN1.

If the character ch is input from the keyboard of the computer system 201 described in the second embodiment, the channel is input by the input interface 205 and stored in the input buffer 204. The input information conversion device 207 reads the input information ch stored in the input buffer 204, executes i2 (ch) (5) to convert it into virtual input information, and shows it through the communication line in the first embodiment. Output to the computer system 101. In the computer system 101, the virtual input information is input from the communication interface 111, and the input information conversion device 107 executes i1 (i2 (ch)) (6) to convert the input information unique to the computer system 101, The result is stored in the input buffer 104.

(Fifth Embodiment) The operation of the present invention will be described with reference to FIG. 4 and FIG. FIG. 4 is a flowchart of the first computer system, and FIG. 5 is a flowchart of the second computer system.

In FIG. 4, when the application executed on the first computer system issues a drawing command to the system (S1), it is acquired (S2) and converted into a virtual drawing command (S2). After S3), the data is transmitted to the second computer system (S4). Next, when the virtual input information is received from the second computer system (S5), it is converted into the input information peculiar to the first computer system (S6) and then delivered to the keyboard or mouse input section of the system (S7). .

In FIG. 5, when a virtual drawing command is received from the first computer system (S8), the received virtual drawing command is converted into a drawing command unique to the second computer system (S9) and then directed to the system. Is issued (S10). Next, there was keyboard or mouse input in the second computer system (S1
In the case of 1), the input information is acquired (S12), converted into virtual input information (S13), and then transmitted to the first computer system (S14).

[0030]

As described above, according to the present invention, the drawing command and the input of the keyboard, the mouse, etc. are converted into the virtual drawing command and the virtual input / output information, respectively, and then transmitted.
Since the receiving side interprets the virtual drawing command and the virtual input information, the application program executed by an arbitrary computer system is used at the same time from all connected computer systems without any change. Is realized,
It enables users to collaborate while sharing an application program such as a word processor which they are usually used to. Furthermore, there is an advantage that both terminals can be used even if they are different models.

[Brief description of drawings]

FIG. 1 shows a principle configuration diagram of the present invention.

FIG. 2 is a configuration diagram of a first computer system for carrying out the program sharing control processing method of the present invention.

FIG. 3 is a configuration diagram of a second computer system for implementing the program sharing control processing method of the present invention.

FIG. 4 is an operation example on the first computer system of the present invention.

FIG. 5 is an operation example on the second computer system of the present invention.

[Explanation of symbols]

 101 computer system 102 CPU 103 main memory 104 input buffer 105 input interface 106 drawing command converter 107 input information converter 108 display controller 109 drawing processor 110 video memory 111 communication interface 201 computer system 202 CPU 203 main memory 204 input buffer 205 input Interface 206 Drawing command conversion device 207 Input information conversion device 208 Display controller 209 Drawing processing device 210 Video memory 211 Communication interface

Claims (1)

[Claims] 1. A keyboard / mouse input unit for interpreting a drawing command issued by an application program and drawing a screen in a computer system for executing an application program, and further delivering input information to the application program. A first computer system having a first and a second computer system, and the first computer system acquiring a drawing command issued by an application program; converting the acquired drawing command into a virtual drawing command; A step of transmitting a virtual drawing command to a second computer system connected via a communication line, and virtual input information input by the second computer system connected via a communication line, input information unique to the computer system. The step of converting to Inputting the converted input information to a keyboard / mouse input unit of the computer system, wherein the second computer system transmits the virtual data by the first computer system connected via a communication line. Inputting a drawing command, converting the virtual drawing command into a drawing command specific to the computer system, issuing the converted drawing command to a screen drawing unit of the computer system, and the computer system To input the input information to the virtual computer and convert it to virtual input information, and to transmit the converted virtual input information to the first computer system connected via the communication line. A program sharing control processing method characterized by the above.