KR19980082610A - Structure of Application Sharing System and Application Sharing Method - Google Patents

Abstract

The present invention relates to an application sharing server and an application sharing method for enabling a plurality of non-shared application programs to be shared among a plurality of users through a network without directly copying a program between multimedia platforms that cooperate in a distributed environment. It solves the problems of the conventional non-shared application sharing technology, which is difficult to share a large number of non-shared applications at the same time, and converts a plurality of Windows applications into mutually participating applications at once. An application sharing system is provided that enables collaboration using programs, and a system operating system is operated by operating a separate application sharing server in a system in order to implement a function to solve the above technical problem. The control of the hook, the path re-allocation, the redistribution process By a shared application in order to configure between the side and the running of the remote user and the application environment in collaboration program method are proposed.

Description

Structure of Application Sharing System and Application Sharing Method

The present invention relates to an application sharing system and a method for sharing an application, and more particularly, to an application sharing system for converting a plurality of non-shared window applications into mutually participating applications.

Application programs on a conventional computer are basically written for a single use on the premise of using a desktop. In addition, even though it is a network-type application through a communication network and multi-user software through a distributed environment, each software is configured to serve one user at a time. However, software implementations in the groupware sector, driven by the development of computer-assisted collaborative work (CSCW) technology, which increases the capacity and speed of networks and the concept of computer-assisted collaboration, allow multiple users to collaborate over a network. Increased the use of software.

The groupware configuration that enables such shared and collaborative work depends on whether the application is newly created for sharing or implemented by using existing non-shared application. Type and Collaboration Awareness Type.

First, non-shared application shared type enables shared cooperative work by developing and applying system assistance functions such as operating system, window system, and toolkit that can share existing non-shared application as it is and share it remotely. That's the way it is.

Shared applications are also a way of developing new shared cooperative applications that have sharing capabilities within them.

By default, shared applications tend to be created as new as shared applications, but for applications that are configured to support collaboration, they must be present on all users' computers to collaborate with each other. There is a problem.

Therefore, it is very important to share most existing applications created through the network without considering the use of collaborative type. This can be implemented in a variety of ways, such as shared, non-shared applications, but existing application sharing systems such as shared windowing systems and shared toolkits have limited support, so that only one application can be used in collaboration at a time. Have.

Accordingly, the present invention provides a hook for a system operating system by operating a separate application sharing server in a system in order to solve various problems related to the related art, which are difficult to simultaneously share a plurality of non-shared application programs simultaneously. To allow remote applications to coexist without having an application on a remote computer, and simultaneously convert multiple Windows applications into interactive applications to collaborate on multiple applications at once. The purpose is to provide an application sharing system and an application sharing method for enabling this.

The application sharing system according to the present invention for achieving the above object is operated by integrating various peripheral devices and a main memory device for storing the application and the operating system, and stores event information, view information and data for application sharing A central processor configured to load and execute an operating system from the main memory, an application sharing server connected to the main memory and the central processor to support application sharing, and a user command connected to the central processor; An input device for transmitting, an output device connected to the central processing unit to notify a user of a result of a user command, and a network connected to the central processing unit for communicating with at least one other application sharing device through a communication network What is done with a card is special It shall be.

In addition, the application sharing method according to the present invention for achieving the above object comprises the steps of setting a hook to intercept a message in the Windows operating system, and selecting the application to be shared to obtain a window handle after setting the hook And setting an event filter to intercept a message and play a message after selecting the application program, determining whether the event filter is an initiator or a participant after setting the event filter, and determining whether the initiator or the participant is determined. If the initiator actually has an application, receiving the event sent from another application sharing device connected to the communication network, and sending the processed event to the application having its own according to the application-specific identifier for sharing the received event After the event processing Capturing the view data as a result of processing through the window handle obtained when selecting the application to be shared; compressing the view data for efficient use of communication network bandwidth after capturing the view data; and sharing the compressed view data. Attaching a distinguisher for each application and transmitting the same to another application sharing device; determining whether to terminate after transmitting the view data; Repetitive steps from the process of performing, and if the participant who wants to collaborate through the application of the initiator connected to the communication network as a result of the determination of whether the initiator or the participant, receiving the view data sent from the initiator side and An application for sharing the received view data Outputting to the screen according to the discriminator, capturing an event generated by the user after outputting the view data, and attaching a distinguisher for each application program sharing the captured event to the application sharing device of the initiator. And determining whether to terminate after transmitting the event, and if not to terminate the event, repeating the process of determining whether it is an initiator or a participant.

1 is a schematic structural diagram of an application sharing system according to the present invention;

2 is a structural diagram of an application sharing server in an application sharing apparatus according to the present invention;

3 is a structural diagram of a hook controller in an application sharing server according to the present invention;

4 is a flowchart illustrating an operation process of an application sharing server according to the present invention;

* Description of symbols on the main parts of the drawings *

1: Main storage device 2: Application sharing server

3: central processing unit 4: input device

5: output device 6: network card

7 and 9: application sharing device

8: communication network 10: hook controller

11: event distributor 12: view distributor

21: hook setting unit 22: event filter unit

23: event record unit 24: event play unit

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a schematic configuration diagram of an application program sharing system according to the present invention.

The application sharing system according to the present invention comprises an operating system in which peripheral devices such as the input device 4, the output device 5, the network card 6, and the like are operated by integrating and operating the main memory device 1 and the like. A central processing unit (3) which is loaded and executed from the main processing unit (3), which is connected to the central processing unit (3), stores an application program and an operating system, and stores event information, view information, and data for application sharing, An application sharing server (2) connected to the central processing unit (3) and the main storage unit (1) for supporting application sharing, and an input device (4) for transferring a user's command to the central processing unit (3); An output device 5 connected to the central processing unit 3 to inform the user of the result of the user's command and another application sharing device 9 connected to the central processing unit 3 through a communication network 8; And barrel A network card and a 6 for.

When the user input is input to the central processing unit 3 through the input device 4, the application sharing server 2 intercepts the user's event transmitted from the central processing unit (3). Subsequently, the application program sharing device 9 of another user is attached to the application processor by attaching a distinguisher for each application to be shared through the central processing unit 3 and the network card 6. When the user's events are delivered to the network card 6 'and the central processing unit 3' of the application sharing device 9 of another user, the application-specific identifiers that are delivered to the application sharing server 2 'and shared. Depending on the desired application. Thereafter, the view data temporarily stored in the main storage device 1 'during the processing, that is, the image data to be output to the user, is attached to the central processing unit 3' and the network card 6 'by attaching a distinguisher for each application program to be shared. Via it is passed back to the original user's application sharing device (7). At this time, the transmission method uses a user datagram protocol (UDP), which is a network transmission method. The application sharing server (2) of the original application sharing device (7) is the central processing unit (3) in accordance with the application-specific identifier to receive and share the view data through the network card (6) and the central processing unit (3) And output to the user through the output device (5). When the user generates an event in the application sharing device 7 through the input device 4, it is transmitted to other remote users by attaching an application-specific identifier shared through the application sharing server 2. Then, it is delivered to the actual application according to the application-specific identifier that shares it, and the result is added to the application-sharing server (2) of the original user side through the application-sharing server by attaching the application-specific identifier. Send it. This allows the user to feel as if they are using their own application.

2 is a block diagram of an application sharing server in the application sharing apparatus according to the present invention. The application sharing server 2 intercepts the user's event received through the input device 4 and the central processing unit 3 from the hook controller 10 and sends the event to the event distributor 11. The event distributor 11 receiving the user's event attaches a distinguisher for each application to share and delivers the event to the other application sharing device 9 through the central processing unit 3, the network card 6, and the communication network 8. . The event distributor of the other application sharing device 9 receives the user event through the communication network 8 ', the network card 6', and the central processing unit 3 ', depending on which application-specific identifiers are shared there. It passes to the input of the desired application program via the hook controller and the central processing unit 3 '. After processing in the application program, the view data is acquired by the hook controller through the central processing unit 3 'and is attached to the application program identifiers to be shared, and then through the central processing unit 3' and the network card 6 '. It is delivered to the application sharing device 7 on the original user side. The view distributor 12 of the original application sharing device 7 receives the view data via the communication network 8 and the network card 6 and the central processing unit 3. Thereafter, the view data is output to the user through the central processing unit 3 and the output device 5 according to the discriminator for each application program to be shared.

Here, the hook controller 10 sets a hook on the message processing passage of the central processing unit 3, intercepts all the user's events delivered to the central processing unit 3, performs a predetermined process, and then retransmits it, or another application. The event delivered from the event distributor 11 ′ of the program sharing device 9 is transferred to an application program according to a distinguisher for each application program shared through the central processing unit 3, and processed to obtain view data. The event distributor 11 again uses its own hook controller 10 according to the application-specific identifier sharing the event received from the event distributor 11 'on the application sharing device 9 of another user connected to the communication network 8. Or send to the event distributor 11 'on the application sharing device 9 of another user connected to the communication network by attaching an application-specific identifier to share his or her event received from the hook controller 10. The hook controller 10 'can be processed according to the application-specific identifier that is shared. By doing so, the event distributor 11 shares the application of another user connected to the communication network 8 by attaching an application-specific identifier that captures the captured event, i.e., copy the data, from the hook controller 10. Dispensing to the device (9). The view distributor 12 attaches a distinguisher for each application that captures and shares the result of the application output on the screen, that is, the appearance on the screen. It is then transmitted to the view distributor 12 'on the application sharing device 9 of another user connected to the communication network 8, or to the view distributor 12 on the application sharing device 9 of another user connected to the communication network 8 The view data is distributed or shared between the application sharing devices 7 and 9 connected to the communication network 8 by outputting to the user according to the application-specific identifier sharing the view data transmitted by '). This allows the user to use the remote application as if it were his application.

3 is a block diagram of a hook controller in an application program sharing server according to the present invention. The hook setting unit 21 sets a hook to the central processing unit 3. In other words, by setting a data path between the event filter unit 22 and the central processing unit 3, the event filter unit 22 can intercept messages on the central processing unit 3, in particular, mouse or keyboard messages generated by the user. So that they can be connected together.

Here, the event filter unit 22 intercepts all message paths passing through the central processing unit 3 in the middle so that the event recorder 23 can perform a function. The event recorder 23 classifies messages generated by a user such as a mouse or a keyboard among the messages passing through the event filter unit 22 and sends them to the event distributor 12, and shares them with other programs connected to the communication network 8. The event distributor of the device 9 receives and forwards it to the event play section 24 and sends it through the event filter section 22 to the message path on the central processing section 3. By doing so, the hook controller 11 including the hook setting unit 21, the event filter unit 22, the event recorder 23, and the event play unit 24 provides functions necessary for collecting and playing back events.

4 is a flowchart illustrating an operation process of an application program sharing server according to the present invention. First, a hook for intercepting messages is set in the Windows operating system (31), and then an application to be shared is selected. At this time, the selection of the application is made by selecting a caption bar, which is the title display portion of the application to be shared by the user. The mouse handle is used to obtain the window handle of the application to be shared. This window handle is later used to obtain view data (32). Subsequently, in the event filter setting process for intercepting an event, an event filter for intercepting a message is set on the operating system of the central processing unit 3 to prepare for intercepting and replaying a message. After that, it is determined whether it is an initiator or a participant, and the performance process is divided into two according to the result (34). As a result of the determination, in the case of an initiator that actually has an application, that is, an application sharing device 7 having an application, first, an event sent from another application sharing device 9 connected to the communication network 8 is received. (35) According to the application-specific identifiers that share this, it is sent to its own application for processing (36), and the view data that is the result of processing by the application is captured through the window handle obtained above (37). Then, in order to efficiently use the bandwidth of the communication network 8, the view data is compressed (38) and transmitted to another application program sharing device 9 by attaching a distinguisher for each application program that shares it (39). If it is determined that the participant who does not have an application and wants to collaborate through the application of the initiator connected to the communication network 8, the application that receives the view data sent from the initiator side (40) and shares it The output is displayed on the screen for the user to see according to the star discriminator (41). In addition, the user captures the generated event (42) and attaches a distinguisher for each shared application program, and transmits it to the application program sharing device 7 on the initiator side (43). After performing the process of transmitting the view data or the event, it is determined whether to end (44) or not (34).

As described above, according to the present invention, an application sharing server using a hook controller can convert a general Windows application into a collaborative application that can collaborate in addition to a single user environment. Collaboration by allowing all participants to collaborate through the application even if the application exists only, making the expensive application more efficient and economical, and sharing one or more applications at the same time. It has an excellent effect to increase workability.

Claims (4)

Main storage for storing applications and operating systems and for storing event information, view information, and data for application sharing; A central processing unit which loads and executes an operating system integrating and operating various peripheral devices from the main memory device; An application sharing server connected to the main storage unit and a central processing unit to support application sharing; An input device connected to the central processing unit and transferring a user command; An output device connected to the central processing unit to notify a user of a result of a user command; And a network card connected to the central processing unit and configured to communicate with at least one other application sharing device through a communication network. The application sharing server of claim 1, wherein the application sharing server sets a hook on the message path of the central processing unit to intercept all events delivered to the central processing unit, or receives an event delivered from an event distributor of another application sharing device. A hook controller for acquiring view data after transferring and processing to an application program through the central processing unit; Of an application sharing device connected to the communication network by sending an event received from an event distributor of another application sharing device connected to the communication network to the hook controller, or by attaching a distinguisher for each application sharing an event received from the hook controller. An event distributor that delivers to the event distributor, Application that captures and shares view data and sends it to a view distributor of another application sharing device connected to the communication network, or to share the view data transmitted by the view distributor of another application sharing device connected to the communication network. A structure of an application sharing system, characterized by consisting of a view distributor for outputting to the user according to the program-specific identifier. The system of claim 2, wherein the hook controller comprises: an event filter unit intercepting all message passages through the central processing unit; A hook setting unit configured to hook up the central processing unit to form a data path between the event filter unit and the central processing unit so as to intercept messages on the central processing unit so that the event filter unit can intercept each other; An event recorder for classifying and storing messages generated by a user using a mouse or a keyboard among the messages passing through the event filter unit, and transmitting the classified messages to the event distributor; And an event play unit configured to receive an event of another application program sharing device through the event distributor and transmit the event to the message path on the central processing unit through the event filter unit. Setting up a hook to intercept messages in the Windows operating system, Selecting an application to share in order to obtain a window handle after setting the hook; Setting an event filter to intercept a message and play a message after selecting the application; Determining whether the event filter is an initiator or a participant after setting the event filter; Receiving an event sent by another application sharing device connected to a communication network when the initiator actually has an application as a result of determining whether the initiator or the participant is present; Sending the received event to an application program of one or more according to the application-specific identifier for sharing the received event; Capturing the view data which is a processing result through the window handle obtained when the application is selected to be shared after processing the event; Compressing the view data for efficient use of network bandwidth after capturing the view data; Attaching a delimiter for each application that shares the compressed view data and transmitting it to another application sharing device; Determining whether to terminate after transmitting the view data; Repeating the process of determining whether it is an initiator or a participant if the end is not terminated as a result of the determination whether Receiving the view data sent from the initiator in case of a participant who wants to collaborate through the application of the initiator connected to the communication network as a result of the determination of whether the initiator or the participant is present; Outputting the received view data to a screen according to a distinguisher for each application program sharing the view data; Capturing an event generated by a user after outputting the view data; Attaching a separator for each application that shares the captured event and transmitting the application event to an application sharing device of an initiator; Determining whether to terminate the event transmission; If it is not terminated as a result of the determination whether the termination of the application program sharing method comprising the step of performing repeatedly from the process of determining whether the initiator or participant again.