CN1284076C - Light weight method for co-broadcasting filmslide file under network environment - Google Patents
Light weight method for co-broadcasting filmslide file under network environment Download PDFInfo
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- CN1284076C CN1284076C CN 200310100573 CN200310100573A CN1284076C CN 1284076 C CN1284076 C CN 1284076C CN 200310100573 CN200310100573 CN 200310100573 CN 200310100573 A CN200310100573 A CN 200310100573A CN 1284076 C CN1284076 C CN 1284076C
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- 239000003999 initiator Substances 0.000 claims description 7
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- 230000004044 response Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims 1
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- 230000003993 interaction Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000002079 cooperative effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 6
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Abstract
The present invention relates to a light weight method for cooperatively playing PowerPoint slide file in network environment, which utilizes an automation interface provided by the PowerPoint playing software to play slides cooperatively based on commands. The method comprises the following operation that the participators joining the cooperative playing get a PowerPoint file to be played via an E-mail or other methods and create a TCP connection with a server; when the slide file is played cooperatively, cooperative commands are transmitted to the participators joining the cooperative playing by the server; after receiving the cooperative commands, the participators joining the cooperative playing realize cooperative playing by calling the automation interface in the PowerPoint playing software. Because the cooperative data size of the present invention in network is small, the network bandwidth is largely saved to reduce the transmission delay and easily realize cooperative operation, and the cooperative effects are good. The present invention can realize server transshipment and large-scale application easily, and can provide security protection to user computers joining the cooperative playing. The human-computer interaction mode and the synchronous mode are flexible, and the present invention can be integrated to other system conveniently.
Description
Technical field
The present invention relates to a kind of method of playing the PowerPoint slide file of in network environment, working in coordination with, exactly, relate to a kind of lightweight implementation method of playing same PowerPoint slide file of in Internet or Intranet, working in coordination with, the CSCW applications technical field that belongs to computer application software
Background technology
At present, realize that by network the collaborative scheme of playing of PowerPoint slide file generally is to utilize general computer desktop technology of sharing (such as agreement T.120) or utilize stream media technology to realize (such as Microsoft Media Service). Its principle is to transmit change information or the video/audio stream information of screen between the each side of sharing. These technical schemes exist following problem and shortcoming: the synchronizing information data volume that transmit (1) is large, if share with RGB/high-resolution, then effect is poor in the Internet environment. (2) T.120 the realization of agreement generally is the application of P2P, has the problem need passing fire wall firewall, if both sides under strict fire wall firewall protection, then can't realize; And stream media technology generally needs the higher media server of cost, and its load/network traffics are very large, also is unwell on Internet in many ways collaborative. (3) man-machine interaction underaction participates in each side by synchronously strict, and some local operations are difficult to carry out, such as not browsing the PowerPoint lantern slide in nonsynchronous mode.
Owing to utilizing many occasions such as the meeting of network realization multimedia remote, remote teaching and tele-medicine, the broadcast of PowerPoint slide file has special purposes, thus in the industry many personages to how to utilize network environment is simpler and easy, convenient, the collaborative PowerPoint of broadcast file is explored and studied neatly.
Summary of the invention
The purpose of this invention is to provide a kind of in network environment the implementation method of the collaborative PowerPoint of broadcast file, in order to can solve at present the above-mentioned various actual application problem that the cooperative mode take T.120 agreement and stream media technology as representative exists.
The object of the present invention is achieved like this: a kind of implementation method of playing the PowerPoint file of working in coordination with in network environment, it is characterized in that: utilize the PowerPoint lantern slide to play the automation interface that tool software provides, realize playing based on the lantern slide of order is collaborative; The method comprises the following steps:
(1) participates in the collaborative each side that plays and obtain the PowerPoint slide file that to play, and set up TCP with server and be connected;
(2) server will be worked in coordination with order and will be forwarded to the each side that participates in collaborative broadcast, after receiving collaborative order, the automation interface COM in the PowerPoint lantern slide broadcast tool software calls in each side, the slide file broadcast type that the method is set in PowerPoint software is 3, and the information of all lantern slides in the slide file taken out be listed in the drop-down list, realize forwarding to by title the lantern slide of appointment; So that the user can not directly control the broadcast of slide file on PowerPoint, but can finish all play operation by the user interface that the inventive method provides;
(3) one of collaborative following co-operating order of synchronous initiator's user selection of playing: open slide file, lower one page lantern slide, page up lantern slide, forward specific lantern slide to, finish to play, and call the automation command operation success of PowerPoint lantern slide broadcast tool software in this locality after, these command codes are sent to server; Server is transmitted to all the other each side to the order that receives, receiver equipment is after receiving this order, namely this order is made an explanation, then call the automation order that corresponding PowerPoint lantern slide is play tool software, realize the collaborative broadcast of lantern slide.
Described collaborative order is data packing and the coding to automation interface, needs the data volume of transmission very little.
It is the MS PowerPoint software of Microsoft that described PowerPoint lantern slide is play tool software, and its automation interface is com interface.
Described network is Internet, or intranet, or other LAN.
Described step (1) further comprises following content of operation:
(11) the collaborative each side that plays installs the PowerPoint lantern slide at computer separately and plays tool software, and obtain to work in coordination with in advance the PowerPoint slide file of broadcast by email or other modes, and this PowerPoint slide file is left on the computer of oneself;
(12) the collaborative each side that plays sets up TCP with server and is connected, and logins successfully.
Described step (3) further comprises following content of operation:
(31) initiate the PowerPoint slide file that a collaborative side user who plays will play in own computer selection and open with broadcast mode, send again the collaborative playing request that comprises this slide file name, be sent to server;
(32) server is transmitted to other each side to this collaborative playing request, recipient's system equipment inquires after receiving this collaborative playing request whether its user accepts this request, if the user accepts, then its system equipment requires the user to locate slide file at its local computer, after locating successfully, open with broadcast mode, and return corresponding response, transmit this requesting party by server;
(33) after recipient user's operation is finished, operating result is returned to collaborative initiator user by server.
The relative prior art of the inventive method, the following advantage and the effect that have:
1, the network of collaborative collaborative information transmitted coded data packet command set, rather than the screen becomes
Of information or video / audio stream information, collaborative information transferred through the server work with the parties, the receiver receives the command
After so interpreted to achieve synchronization. So that the network can use a lightweight communication mechanism to achieve synergy,
Collaborative information need to transfer the amount of data is small, relative to the existing technical solutions are order of magnitude differences
This saves network bandwidth and reduce the transmission delay, it is easier to achieve synergy on the Internet, and more
Easy to support more collaborative users, and synergistic effects with color display shared / resolution-independent, so
Collaboration on the Internet can be achieved when multiple high-quality display.
...
1, the network of collaborative collaborative information transmitted coded data packet command set, rather than the screen becomes
Of information or video / audio stream information, collaborative information transferred through the server work with the parties, the receiver receives the command
After so interpreted to achieve synchronization. So that the network can use a lightweight communication mechanism to achieve synergy,
Collaborative information need to transfer the amount of data is small, relative to the existing technical solutions are order of magnitude differences
This saves network bandwidth and reduce the transmission delay, it is easier to achieve synergy on the Internet, and more
Easy to support more collaborative users, and synergistic effects with color display shared / resolution-independent, so
Collaboration on the Internet can be achieved when multiple high-quality display.
...
3, set the MS PowerPoint slide show file playback type is 3, so that the user can not directly in MS
PowerPoint slides on file playback control, but must be provided by the present invention the user interface
Eliminating the need to use MS PowerPoint provides event capture mechanism, and can achieve complete control; put
All slides in slide file information removed are listed in a drop-down list, go to achieve by title
Specified slide.
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5, the present method requires low on equipment, construction, low cost, and can be easily integrated into other systems
Commission in collaboration together to provide better results.
BRIEF DESCRIPTION
Figure 1 is the environment of the present invention applied to the logical network structure of FIG.
Figure 2 is a synergistic method of the invention flow diagram of the operation of playback.
Specific embodiments
The present invention is a kind of network environment (including the Internet Internet, or intranets Intranet, or
It LAN) play PowerPoint files for collaborative implementation method, which is the use of PowerPoint slides
Film playback software tools provide automated interface, command-based collaborative slide playing. Among
PowerPoint slide show tool is Microsoft's MS PowerPoint software, automation
Interface is a COM interface.
The method of the invention first need to prepare the following initialization operations: the parties involved in various collaborative play
Since PowerPoint installed on a computer slide show software tools, and advance through email or other
Obtained by going to play together a PowerPoint slide file, and the text of the PowerPoint slides
Items stored in their computer, and the parties involved in cooperative play with a user's computer to serve
Works to establish a TCP connection (see Figure 1), and the login is successful.
The following combination of embodiments and the accompanying drawings, the invention is described with the main flow of the working principle and steps:
Figure 2 shows a method of the present invention is for collaborative playback operation flow diagram.
1 to initiate collaborative play party (user 1 in Figure 1, User 2, ..., N of the user)
On your computer, select the files you want to play to play PowerPoint slide opened, recurrent
The file name that contains the slide collaborative play request, transmitted to the server;
2, the server forwards the request to the cooperative play the other parties, the receiver receives the agreement in system equipment
Play it with a request asking the user whether to accept the request.
3, if the user accepts the request, then the system equipment which require the user to locate on the local computer
Slide file, after the success in positioning to play opened to the server returns the appropriate response.
4, the server forwards the response back to the requesting party to the collaborative initiator.
5, collaborative playback synchronization initiator can select one of the following co-operating: Next Slide, on
A slide show, go to a specific slide, local calls MS PowerPoint automation command operation
After the success of these synchronization commands sent to the server code.
6, the server synchronization commands transmitted to the rest of the parties, the receiver system equipment after receiving the synchronization commands
Orders, that is to explain the synchronization command, and then call the appropriate MS PowerPoint automation life
Order to achieve the slideshow synchronization.
7, the receiver operation is completed, the results of the operation to the server.
8, the server forwards the results of the operation back to the requesting party to the collaborative initiator.
The present invention utilizes the Microsoft MS PowerPoint software programming objects are COM
PowerPoint.Application, PowerPoint.Presentation, PowerPoint.SlideShowWindow.
Which involves the main methods and properties described in the following table:
| Method or property | Purpose and Description |
| Open | Open a PowerPoint slide file |
| ShowType | Value of 3, set the appropriate parties PowerPoint slideshow Type, so that users can not operate on MS PowerPoint player, The program must be used to provide the user interface, so get Full Control |
| Run | Start playing |
| SlideShowWindow | Obtain playback window reference to the window control, such as Move, zoom in, zoom out, and one of the slide show view can be Control |
| Next | Next |
| Previous | Previous |
| GotoSlide | Go to the specified page |
| Slides | PowerPoint slides to obtain all the slides in the file information, |
| Including the title, the program to all the slides in the slide files of standard Questions are listed in a drop-down list, the user can select to determine where to Go to that one slide. |
The present invention uses a communications major collaborative command sent the following table:
| Command ID | Parameter | Explanation |
| START_SHOW | To play the slideshow file name | Request by the parameter specified Magic Collaborative play slides file |
| NEXT_SLIDE | Play Next Slide | |
| PRE_SLIDE | Play Previous Slide | |
| GOTO_SLIDE | To turn to the ID of the slide | Play by the ID specified slide |
| END_SHOW | End Collaborative Play |
Thus, the command set is small, the parameter is also very short, very short encoded bytes can achieve when
As needed for flexible coding, is lightweight transmission method.
The method of the invention also added some of the following key features: Sync disconnect / restore: join together to play
Either a user, you can choose whether to play for real-time synchronization and collaboration, If you select No, you can own right
Scroll Slide locally without affecting the others. Free slideshow window zoom in / out: join
Collaborative play either a user can slide on the local computer playback window to freely zoom in /
Narrow, user choose to run on the same screen display windows other operations, such as video, audio, will
Words, whiteboard, etc.
The invention has been developed, and for the implementation of the test, i.e., the video / audio communication and other
Function devices to provide users with the collaboration service. In the collaborative slideshow file, while also
For video and audio communication and text chat and more efficient real-time communication, to achieve better synergy effects.
In short, the test is successful, achieving a purpose of the invention.
Claims (6)
- A method in a network environment collaborative play PowerPoint slide files, characterized in On: the use of PowerPoint slide show software tools provide automated interface, command-based Slide collaborative play; the method comprising the steps of:(A) the parties to get involved in cooperative play PowerPoint slide file you want to play, and with the service Works to establish a TCP connection;(2) the server will be forwarded to participate in collaborative command synergistic play parties together received command, the Party calls PowerPoint slide show tool software automation interface COM, in PowerPoint Software sets the method of the slide file playback type 3, and to all the slides in the slide file Remove the pieces of the information listed in a drop-down list, go to the specified achieve by title slide;(3) collaborative playback synchronization initiator user to select one of the following co-operating commands: open the slideshow Documents, Next Slide, Previous Slide, go to a specific slide finishes playing, and in this Call the PowerPoint slide show software tools automate command operation is successful, put these commands Coding sent to the server; server forwards the received command to the remaining parties, the receiver device in the next After receiving the command, the command is interpreted, and then call the appropriate PowerPoint slide Software tools automate order to achieve synergy slideshow playback.
- 2, according to the method of claim 1, characterized in that: said pick automation collaborative command Packaging and coding data port, a small amount of data to be transferred.
- 3, according to the method of claim 1, wherein: said PowerPoint slide show Put the tool is Microsoft's MS PowerPoint software, the automation interface is a COM interface.
- 4, according to the method of claim 1, characterized in that: said network is the Internet Intemet, Or enterprise network Intranet, or other LAN.
- 5, according to the method of claim 1, wherein: said step (1) further comprises The following contents:(11) the parties together to play PowerPoint installed on their computers slideshow tool Software and advance through email or otherwise acquired will be collaborative play PowerPoint slide text Pieces, and the PowerPoint slide files stored in their computers;(12) Collaborative play parties establish a TCP connection with the server, and the login is successful.
- As claimed in claim 1, characterized in that: said step (3) further comprises The following contents:(31) the originator of collaborative play on their computer users choose to play in PowerPoint Slide open the file to play, and then send the file name that contains the slides collaborative play request, pass Sent to the server;(32) server forwards the request to the cooperative play to the other parties, the receiver device receives the Agreement Play it with a request asking the user whether to accept the request, if the user accepts, then the device requires the user to In its positioning slide file on the local computer, to play in the successful positioning opened, and return phase Should be the response from the server forwards the requesting party;(33) the recipient user operation is completed, the operating result returned by the server to the collaborative initiator Users.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200310100573 CN1284076C (en) | 2003-10-20 | 2003-10-20 | Light weight method for co-broadcasting filmslide file under network environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310100573 CN1284076C (en) | 2003-10-20 | 2003-10-20 | Light weight method for co-broadcasting filmslide file under network environment |
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| Publication Number | Publication Date |
|---|---|
| CN1609784A CN1609784A (en) | 2005-04-27 |
| CN1284076C true CN1284076C (en) | 2006-11-08 |
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| CN 200310100573 Expired - Lifetime CN1284076C (en) | 2003-10-20 | 2003-10-20 | Light weight method for co-broadcasting filmslide file under network environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106326019A (en) * | 2016-08-19 | 2017-01-11 | 广州视睿电子科技有限公司 | Method and system for informing PPT (powerpoint) state |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682639A (en) * | 2012-05-17 | 2012-09-19 | 江苏中科梦兰电子科技有限公司 | Method for improving synchronous display efficiency of electronic classroom resources |
| CN102739801B (en) * | 2012-07-05 | 2015-06-03 | 珠海金山办公软件有限公司 | Shared broadcasting method and shared broadcasting system |
| CN104753974A (en) * | 2013-12-25 | 2015-07-01 | 珠海金山办公软件有限公司 | Method and system for document sharing browse |
| CN104199911A (en) * | 2014-08-28 | 2014-12-10 | 天脉聚源（北京）教育科技有限公司 | Storage method and device for PPT |
| CN110175461A (en) * | 2019-05-08 | 2019-08-27 | 矩阵元技术（深圳）有限公司 | Implementation method, device, computer equipment and the storage medium of multi-party computations |
-
2003
- 2003-10-20 CN CN 200310100573 patent/CN1284076C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106326019A (en) * | 2016-08-19 | 2017-01-11 | 广州视睿电子科技有限公司 | Method and system for informing PPT (powerpoint) state |
| CN106326019B (en) * | 2016-08-19 | 2019-09-03 | 广州视睿电子科技有限公司 | PPT state notice method and system |
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| Publication number | Publication date |
|---|---|
| CN1609784A (en) | 2005-04-27 |
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