CN1627732A - Method and system of sharing application programs in instant communication system - Google Patents
Method and system of sharing application programs in instant communication system Download PDFInfo
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Abstract
In instant communication system, application programs are shared among client ends through mutual transferring application programs and relevant operations in client ends by using own instant communication tools. Instant communication tool at client end through network transfers intercepted screen image of application program and corresponding variation information in screen from running program to instant communication tool in relevant client end. Based on relevant information received, instant communication tool at corresponding client end generates corresponding screen display of application program. The disclosed method and system satisfying instant interactivity for browsing files and operating programs expands function of instant communication so as to be able to apply to rich services such as electric white board, desktop conferencing, remote control, and remote education.
Description
Technical field
The present invention relates to electrical communication technology, relate in particular to a kind of method and system that application program is shared in instant communicating system.
Background technology
Network instant communication service IM, promptly Instant Messenger is a kind of Communications service based on the Internet, generally is based on instant communication function on the realization network, instant messaging service IM has obtained using widely and approving on the internet.The Internet instant messaging service IM gradually to direction that network virtual community combines on extend, embodied the developing direction of network instant communication service IM, instant messaging service IM is achieved by JICQ, and, feature richness fast with its speed, use are stable, small and exquisite keen-witted and capable and obtain numerous netizens' approval and like.In the service of existing instant messaging, the user can by this JICQ carry out Word message mutual, transmit file, send multiple operations such as SMS, but can not satisfy immediate interactivity to document browsing or procedure operation.
Summary of the invention
The object of the present invention is to provide a kind of method and system that application program is shared in instant communicating system, to solve the defective that can not satisfy in the prior art to the immediate interactivity of document browsing or procedure operation.
The method that application program is shared in instant communicating system of the present invention is: in instant communicating system, immediate communication tool by separately between the client transmits application program and the corresponding operating thereof in the client mutually, finishes sharing of application programs between the client;
Immediate communication tool in the described client is by the screen image and the application program corresponding screen change information in service thereof of intercepting application program, to the immediate communication tool of corresponding client, the immediate communication tool of described corresponding client is according to the received screen display of generation corresponding application for information about by network delivery;
During the screen image of immediate communication tool in described client intercepting application program and application program thereof corresponding screen change information in service, at first start Hook Function and catch window message, judge whether these message are relevant with screen change, if the relevant window handle of then obtaining this message, and intercept the bitmap on screen of this window, split into the data block of certain size, carry out internal memory relatively with original screen image bitmap, and preserve relevant data block;
After immediate communication tool in the described client intercepts relevant pictorial information, encoded compression encapsulates data, be sent to the immediate communication tool of corresponding client by Network Transmission, the immediate communication tool of corresponding client is through corresponding decode operation reduction pictorial information;
Described immediate communication tool adopts the rle coding method that relevant pictorial information is encoded, compressed and decodes;
The immediate communication tool of described corresponding client can be according to sending pictorial information client and the display properties of self when the reduction pictorial information, and change in size and color depth that pictorial information is reduced are adjusted accordingly;
Immediate communication tool in the described client is also caught mouse and keyboard message, and sends it to the immediate communication tool in the relative client, receives immediate communication tool in the client of these mouses and keyboard message with its simulated cost machine operation.
By the relevant data connection control information of instant communication server transmission, finish setting, the reception of control information, forwarding that application program is shared between the immediate communication tool of described client;
Application program sharing operation authority between the described client can be divided into the Share Permissions of different stage;
The Share Permissions of described different stage comprises no any authority, browse right, permission Keyboard Control authority, permission mouse control authority, complete authority;
But information such as the data traffic during the immediate communication tool statistics application procedure sharing in the described client, network quality;
Immediate communication tool in the described client can be preserved various receptions, control, the swap data during application program is shared;
Immediate communication tool in the described client can by the timestamp mark with respective data record in local file.
The system that the application program in instant communicating system of this realization said method is shared, comprise immediate communication tool and instant communication server, comprise instant messaging main control module and network data transmission module in the immediate communication tool, the instant messaging main control module by with the information interaction of instant communication server, finish the control routinely of instant messaging, and between the immediate communication tool of different clients, transmit data by the network data transmission module, it is characterized in that: also comprise shared control treatment module in the described immediate communication tool, described shared control treatment module receives, transmit relevant the setting, control information, carry out the relevant data collection of share application, finish coding to data, compression, encapsulation and decoding are to network data transmission module issue relevant data transmission command;
By the instant communication server transmission data connection control information relevant with share application, the shared control treatment module of process is finished reception, forwarding for information about between the described immediate communication tool;
Described shared control treatment module comprises the logic control submodule, the data processing submodule, data acquisition submodule and demonstration control submodule, described logic control submodule receives relevant controlling information, and to data processing submodule and demonstration control submodule transmission Data Control, transmission command, the data processing submodule is finished the coding of data, compression, encapsulation, decoding and relevant data forwarding, the data acquisition submodule is finished screen image and change information thereof, the collection of window message and mouse and keyboard message, and the information that collects mail to the data processing submodule, show of the instruction of control submodule, obtain related data by the data processing submodule and finish the corresponding application screen display according to the logic control submodule;
Also comprise the storage submodule in the described shared control treatment module, described storage submodule is preserved the various data relevant with share application.
Beneficial effect of the present invention is: in the present invention, immediate communication tool by separately between the client transmits application program and the corresponding operating thereof in the client mutually, be in the client immediate communication tool by the intercepting screen image of application program and application program corresponding screen change information in service thereof by network delivery to the immediate communication tool of corresponding client, or catch mouse and keyboard message and send it to immediate communication tool in the relative client, the immediate communication tool of corresponding client is according to the received screen display of generation corresponding application for information about, just finished sharing of application programs between the client, making between the client can the collaborative browse document or control application program that certain is shared, and has strengthened the instantaneity of instant messaging.Immediate communication tool adopts the rle coding method that relevant pictorial information is encoded, compressed and decodes, can obtain very high compression ratio, and speed is also very fast, through statistics, under 1024 * 768 * 32 resolution, the data volume that the screen wide variation is produced has only 10-20kBytes/s, the shared CPU time is about 5%, basically can ignore, like this, improve practicality of the present invention.Application program sharing operation authority between the client is divided into the Share Permissions of different stage, makes the present invention more be applicable to the application of reality, has further improved practicality of the present invention.But immediate communication tool is by preserving relevant data and being made into the local file of playback by the timestamp mark, make the demonstration, teaching, scene record etc. of application program shared procedure become very convenient and quick, in replayed section, be labeled as benchmark with timestamp, can support the speed adjustment of playback, promptly be modeled to different playback speeds, can realize accelerating, playback speed slows down, suspend, put upside down, F.F., rewind down, and progress rich functions such as drags, and satisfies the different demand of user.In a word, the invention provides a kind of energy and satisfy method and system the immediate interactivity of document browsing or procedure operation, the present invention has expanded the function of instant messaging widely, can be widely used in various abundant business, for example electronic whiteboard, desktop conferencing, Long-distance Control, long-distance education etc.
Description of drawings
Fig. 1 is a system configuration schematic diagram of the present invention;
Fig. 2 constitutes schematic diagram for the inside of immediate communication tool among the present invention;
Fig. 3 is for sending the structure control schematic diagram as the customer end A of server end to the data as the customer end B of sharing users end among the present invention;
Fig. 4 is for sending the control structure schematic diagram as the customer end B of sharing users end to the data as the customer end A of server end among the present invention;
Fig. 5 among the present invention as the Data Control schematic flow sheet of the customer end A of server end;
Fig. 6 among the present invention as the Data Control schematic flow sheet of the customer end B of sharing users end;
The connection control data schematic flow sheet of Fig. 7 for sharing between the client among the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
According to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention includes immediate communication tool 1 and instant communication server 2, comprise instant messaging main control module 11 in the immediate communication tool 1, network data transmission module 12 and shared control treatment module 13, instant messaging main control module 11 by with the information interaction of instant communication server 2, finish the control routinely of instant messaging, and between the immediate communication tool 1 of different clients, transmit data by network data transmission module 12, transmit the data connection control information relevant by instant communication server 2 between the immediate communication tool 1 with share application, the shared control treatment module 13 of process is finished reception for information about, transmit, sharing control treatment module 13 receives, transmit relevant the setting, control information, carry out the relevant data collection of share application, finish coding to data, compression, encapsulation and decoding are to network data transmission module 12 issue relevant data transmission commands.
As Fig. 2, Fig. 3 and shown in Figure 4, share in the control treatment module 13 and comprise logic control submodule 131, data processing submodule 132, data acquisition submodule 133, show control submodule 134 and storage submodule 135, wherein, logic control submodule 131 receives relevant controlling information, and to data processing submodule 132 and demonstration control submodule 134 transmission Data Control, transmission command, data processing submodule 132 is finished the coding of data, compression, encapsulation, decoding and relevant data forwarding, data acquisition submodule 133 is finished screen image and change information thereof, the collection of window message and mouse and keyboard message, and the information that collects mail to data processing submodule 132, show of the instruction of control submodule 134 according to logic control submodule 131, obtain related data by data processing submodule 132 and finish the corresponding application screen display, storage submodule 135 is preserved the various data relevant with share application.
Can transmit relevant data connection control information by instant communication server 2 between the immediate communication tool 1 of client, finish the reception, forwarding of setting that application program shares, control information etc., application program sharing operation authority between the client can be divided into the Share Permissions of different stage, and for example Permission Levels are followed successively by no any authority, browse right, permission Keyboard Control authority, permission mouse control authority, complete authority from low to high.
For example Fig. 1, Fig. 2, Fig. 3 and Fig. 4 shown in instant communicating system in, pass through immediate communication tool 1 mutual application program and the corresponding operating thereof that transmits in the client separately between customer end A, the B, now establishing customer end A is server end, promptly the application program of being shared is in customer end A, customer end B is the sharing users end, and the concrete control procedure that the information of setting up between the client connects is as follows:
1.1, as shown in Figure 7, customer end A is as server end, selects the sharing users group by immediate communication tool 1, and user right is set, and can be provided with and oneself be ready application program or the whole desktop shared, waits for that other users accept to share.
1.2, as shown in Figure 7, customer end A invites the sharing users end among the sharing users groups to add by instant communication server 2.
1.3 if the sharing users termination is invited, then start the shared control treatment module 13 of immediate communication tool 1 in this sharing users end, and return and agree that reception information to instant communication server 2, continues following steps 1.4; If sharing users end refusal then returns refusal information by instant communication server 2 to customer end A, with its rejecting, in the present embodiment, as shown in Figure 7, customer end B is as the sharing users end of being invited from share the group for customer end A.
1.4, as shown in Figure 7, if customer end B has been accepted shared invitation, customer end A is learnt the relevant information of customer end B by instant communication server 2, as IP address, port numbers etc., the instant messaging main control module 11 of relevant information process customer end A goes to the transmission of sharing control treatment module 13 and writing wherein and tabulates; Simultaneously, the shared control treatment module 13 of customer end A notice immediate communication tool 1 wherein starts.
1.5, the shared control treatment module 13 of customer end A begins to send data by the shared control treatment module 13 of network data transmission module 12 immediate communication tool 1 in customer end B according to the customer end B relevant information of gained, therefore, having set up the network information between customer end A and the customer end B is connected.
In the present invention, as shown in Figure 1, pass through immediate communication tool 1 mutual application program and the corresponding operating thereof that transmits in the client separately between the client, immediate communication tool 1 in the client is by the screen image and the application program corresponding screen change information in service thereof of intercepting application program, by network delivery to the immediate communication tool 1 of corresponding client, the immediate communication tool 1 of corresponding client is according to the received screen display of generation corresponding application for information about, thereby finish sharing of application programs between the client, its concrete control procedure is as follows:
2.1, as Fig. 3 and shown in Figure 5, server end, be the immediate communication tool 1 of customer end A by data acquisition submodule 133 intercepting application programs screen image and during application program corresponding screen change information in service, at first start Hook Function and catch window message, judge whether these message are relevant with screen change, if the relevant window handle of then obtaining this message, and intercept the bitmap on screen of this window, split into certain size, data block as 16 * 16, carry out internal memory relatively with original screen image bitmap, and preserve the different data block of comparative result, for the follow-up coding and the usefulness of transmission.
2.2, as Fig. 3 and shown in Figure 5, after the relevant pictorial information of immediate communication tool 1 intercepting of customer end A, through 132 pairs of data encoding compression of data processing submodule and encapsulation wherein, data processing submodule 132 adopts the rle coding method that relevant pictorial information is encoded, compression and decoding, because the colourity of neighbor pixel has very strong correlation in the computer graphical, the distance of swimming is longer, can obtain very high compression ratio with the rle coding method, and speed is also very fast, rough estimates, under 1024 * 768 * 32 resolution, the data volume that the screen wide variation is produced has only 10-20kBytes/s, the CPU time that takies is about 5%, can ignore basically.
2.3, as Fig. 3 and shown in Figure 5, the logic control submodule 131 of customer end A sends the related network transmission command to data processing submodule 132, data processing submodule 132 is sent to customer end B with data by network data transmission module 12, it is the immediate communication tool 1 of sharing users end, the network data transmission module 12 of the immediate communication tool 1 of customer end B forwards the data to the data processing submodule 132 of customer end B, relevant data encapsulates according to self-defining proprietary protocol, pass to customer end B with UDP or TCP connected mode, on transport layer, unpack, the group bag is handled, and bag is carried out verification, ordering, processing such as abandon.
2.4, as Fig. 3 and shown in Figure 6, after customer end B receives data, by customer end B through the corresponding decode operations reduction of data processing submodule 132 pictorial information, logic control submodule 131 sends relevant screen display order to data processing submodule 132 with demonstration control submodule 134 in the customer end B, as shown in Figure 6, data processing submodule 132 is through Coordinate Conversion, the inverse operation reduction bitmap that color depth conversion and GDI draw also is presented on the screen of customer end B, when data processing submodule 132 is made inverse operation reduction bitmap, can be according to customer end A and the display properties of self, change in size and color depth that pictorial information is reduced are adjusted accordingly.
From above-mentioned steps 2.1 to step 2.4 as can be seen, sent the share application and the corresponding operating thereof of customer end A as the customer end A of server end to the customer end B as the sharing users end, the data that transmitted are presented on the screen of customer end B through reduction.
2.5, as Fig. 4 and shown in Figure 6, immediate communication tool 1 in the customer end B is caught mouse and keyboard message, and send it to immediate communication tool 1 in the customer end A, customer end A is according to the Share Permissions of customer end B, for example, if the Permission Levels of customer end B are no any authority or browse right, then customer end A will not respond mouse and the keyboard message that receives; If the Permission Levels of customer end B are complete authority, expression authority support control, mouse and the keyboard message simulated cost machine operation of customer end A then to receiving, operating result is shown on the screen of customer end A; If the Permission Levels of customer end B are for allowing the Keyboard Control authority or allowing the mouse control authority, the support of expression authority is partly controlled, then to the mouse that receives and keyboard the message correspondingly keyboard or the mouse action of simulated cost machine, operating result is shown on the screen of customer end A customer end A according to the authority of customer end B.By this step as can be seen, sent the sharing operation of customer end B to customer end A, and operating result is shown in server end, promptly on the screen of customer end A as server end as the customer end B of sharing users end.
In order to improve performance, server end will detect the certain operations of application program, as distinguishing mouse drag and non-drag operation, for non-drag area, carry out according to original step; And, can directly transmit the window and the position that drag for drag area, client can be changed the position of demonstration rapidly, significantly promotes performance.
In above-mentioned steps, when customer end B is received the data that customer end A sends, or when customer end A is received the data that customer end B sends, various receptions, control, swap data during immediate communication tool 1 can be shared by storage submodule 135 preservation application programs in customer end B or the customer end A, and press the timestamp mark with respective data record in local file, the local file of making can be used for playback.
No matter whether during application program is shared, client can be recorded a period of time at selected screen or application program, is stored as local file, can open playback at any time later on, for your guidance, this makes software demonstration, teaching, scene record etc. become very convenient and quick.
The user enables when recording, share control treatment module 13 newly-built files, client is sent to the data distribution of transport layer in this document after catching, encoding, and stamp the timestamp mark, store relevant data, no matter be server end or the share application or the corresponding operating of sharing users end, can note, for check in the future.Because compression efficiently and simple data structure, recorded file is less, and generally speaking, 10 minutes memory space is probably about 1.5-2Mbytes.
During with the client playback file, share control treatment module 13 and open the log file of client appointment, and, be modeled to the data that client receives from transport layer according to the interval reading of data of time stamp, reset, organize bag, decoding then, on corresponding position, show at last.
Owing to stamped timestamp during data record, be labeled as benchmark with timestamp during playback, can support the speed adjustment of playback, promptly be modeled to different playback speeds, can realize accelerating, playback speed slows down, suspend, put upside down, F.F., rewind down, and progress rich functions such as drags, and satisfies the different demand of user.In addition, also allow client that former log file is edited, can merge, delete, amplify, dwindle, add literal annotations and comments or picture, and editing authority is done relevant control.
When customer group is collaborative finish certain document after, if needed, share control treatment module 13 and can call document and send to the client of sharing among the group.In addition, sharing control treatment module 13 can also utilize the function on other client to be the share application service.
In the present invention, but information such as the data traffic during the immediate communication tool 1 statistics application procedure sharing in the client, network quality, instant communicating system can be handled as the case may be, as opening a TCP transit server passage separately, to guarantee the reliability of shared data at member's client.
During sharing, can in sharing the group, delete or add some client, changed information is notified the relative clients end by instant communication server 2, carry out respective handling by the immediate communication tool in the relative client 1 through sharing control treatment module 13 again, add new user to transmitting in the list, connect and send data; The deletion inactive users is stopped paying out data and is removed connection; Or revise each user's Share Permissions, inform the associated user by instant communication server 2, and the shared control treatment module 13 of notice is carried out respective handling.
Claims (17)
1. method that application program is shared in instant communicating system, it is characterized in that: in instant communicating system, immediate communication tool by separately between the client transmits application program and the corresponding operating thereof in the client mutually, finishes sharing of application programs between the client.
2. the method that application program is shared in instant communicating system according to claim 1, it is characterized in that: the immediate communication tool in the described client is by the screen image and the application program corresponding screen change information in service thereof of intercepting application program, to the immediate communication tool of corresponding client, the immediate communication tool of described corresponding client is according to the received screen display of generation corresponding application for information about by network delivery.
3. the method that application program is shared in instant communicating system according to claim 2, it is characterized in that: during the screen image of immediate communication tool in described client intercepting application program and application program thereof corresponding screen change information in service, at first start Hook Function and catch window message, judge whether these message are relevant with screen change, if the relevant window handle of then obtaining this message, and intercept the bitmap on screen of this window, split into the data block of certain size, carry out internal memory relatively with original screen image bitmap, and preserve relevant data block.
4. the method that application program is shared in instant communicating system according to claim 2, it is characterized in that: after the immediate communication tool in the described client intercepts relevant pictorial information, encoded compression encapsulates data, be sent to the immediate communication tool of corresponding client by Network Transmission, the immediate communication tool of corresponding client is through corresponding decode operation reduction pictorial information.
5. the method that application program is shared in instant communicating system according to claim 4 is characterized in that: described immediate communication tool adopts the rle coding method that relevant pictorial information is encoded, compressed and decodes.
6. the method that application program is shared in instant communicating system according to claim 4, it is characterized in that: the immediate communication tool of described corresponding client is when the reduction pictorial information, can be according to sending pictorial information client and the display properties of self, change in size and color depth that pictorial information is reduced are adjusted accordingly.
7. according to claim 2 or 3 or 4 or the 5 or 6 described methods that application program is shared in instant communicating system, it is characterized in that: the immediate communication tool in the described client is also caught mouse and keyboard message, and send it to immediate communication tool in the relative client, receive immediate communication tool in the client of these mouses and keyboard message with its simulated cost machine operation.
8. according to claim 1 or 2 or the 3 or 4 described methods that application program is shared in instant communicating system, it is characterized in that: by the relevant data connection control information of instant communication server transmission, finish setting, the reception of control information, forwarding that application program is shared between the immediate communication tool of described client.
9. the method that application program is shared in instant communicating system according to claim 8, it is characterized in that: the application program sharing operation authority between the described client can be divided into the Share Permissions of different stage.
10. the method that application program is shared in instant communicating system according to claim 9 is characterized in that: the Share Permissions of described different stage comprises no any authority, browse right, permission Keyboard Control authority, permission mouse control authority, complete authority.
11., it is characterized in that according to claim 1 or 2 or the 3 or 4 described methods that application program is shared in instant communicating system: but information such as the data traffic during the immediate communication tool statistics application procedure sharing in the described client, network quality.
12. according to claim 1 or 2 or the 3 or 4 described methods that application program is shared in instant communicating system, it is characterized in that: the immediate communication tool in the described client can be preserved various receptions, control, the swap data during application program is shared.
13. the method that application program is shared in instant communicating system according to claim 12 is characterized in that: the immediate communication tool in the described client can by the timestamp mark with respective data record in local file.
14. shared system of application program in instant communicating system that realizes the described method of claim 1, comprise immediate communication tool (1) and instant communication server (2), comprise instant messaging main control module (11) and network data transmission module (12) in the immediate communication tool (1), instant messaging main control module (11) by with the information interaction of instant communication server (2), finish the control routinely of instant messaging, and between the immediate communication tool (1) of different clients, transmit data by network data transmission module (12), it is characterized in that: also comprise shared control treatment module (13) in the described immediate communication tool (1), described shared control treatment module (13) receives, transmit relevant the setting, control information, carry out the relevant data collection of share application, finish coding to data, compression, encapsulation and decoding are to network data transmission module (12) issue relevant data transmission command.
15. the system that application program is shared in instant communicating system according to claim 14, it is characterized in that: transmit the data connection control information relevant with share application by instant communication server (2) between the described immediate communication tool (1), the shared control treatment module (13) of process is finished reception, forwarding for information about.
16. according to claim 14 or the 15 described systems that application program is shared in instant communicating system, it is characterized in that: described shared control treatment module (13) comprises logic control submodule (131), data processing submodule (132), data acquisition submodule (133) and demonstration control submodule (134), described logic control submodule (131) receives relevant controlling information, and to data processing submodule (132) and demonstration control submodule (134) transmission Data Control, transmission command, data processing submodule (132) is finished the coding of data, compression, encapsulation, decoding and relevant data forwarding, data acquisition submodule (133) is finished screen image and change information thereof, the collection of window message and mouse and keyboard message, and the information that collects mail to data processing submodule (132), show the instruction of control submodule (134), obtain related data by data processing submodule (132) and finish the corresponding application screen display according to logic control submodule (131).
17. according to claim 14 or the 15 described systems that application program is shared in instant communicating system, it is characterized in that: also comprise storage submodule (135) in the described shared control treatment module (13), described storage submodule (135) is preserved the various data relevant with share application.
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| CN1147806C (en) * | 2002-08-20 | 2004-04-28 | 西安交通大学 | Multimedia real-time lessons-giving system based on IP web |
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