CN107357542B - Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system - Google Patents
Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system Download PDFInfo
- Publication number
- CN107357542B CN107357542B CN201710528691.6A CN201710528691A CN107357542B CN 107357542 B CN107357542 B CN 107357542B CN 201710528691 A CN201710528691 A CN 201710528691A CN 107357542 B CN107357542 B CN 107357542B
- Authority
- CN
- China
- Prior art keywords
- ppt
- playing
- played
- presentation
- demonstration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a method for playing PPT (Power Point) demonstration manuscript by an LED display screen playing system. The method is characterized in that when the PPT demonstration manuscript is played in the LED display playing system, the PPT demonstration manuscript is played in a designated playing place and does not need to be played after being converted into a picture. The method calls a primary PPT presentation component in an LED display playing system, and can also be used for a COM component. The PPT presentation file can be played in any area of a designated computer screen, and playing elements such as audio, animation, movies and the like in the PPT presentation file cannot be lost, so that the technical difficulty in the prior art is overcome.
Description
Technical Field
The invention relates to the technical field of media playing and control, in particular to a method for playing PPT (Power Point) demonstration manuscripts by an LED display screen playing system.
Background
PPT presentations are increasingly applied to office files, meeting presentations and advertisement exhibitions, and the contents of audio, animation, films and the like are diversified from playing elements with single characters and pictures. The LED display screen is used as indoor and outdoor advertisements, and the occupancy rate of large-scale stage backgrounds and the like is getting heavier. In the LED display system, due to the usability, diversity, etc. of the PPT presentation, the PPT presentation is played very frequently in the LED display playing system.
In the existing LED display playing system, there is a problem in playing a PPT presentation, that is, all slides in the PPT presentation need to be converted into pictures during the process of playing the PPT presentation, and then pictures are called for decoding to play. After the PPT is converted into a picture, the advantages of the PPT presentation are lost, and the audio, animation and film contents in the PPT presentation cannot be played.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a method for playing a PPT presentation by an LED display screen playing system. The method is characterized in that when the PPT demonstration manuscript is played in the LED display playing system, the PPT demonstration manuscript is played in a designated playing place and does not need to be played after being converted into a picture.
In order to solve the technical problem, the invention is realized by the following scheme: a method for playing a PPT demonstration manuscript by an LED display screen playing system is mainly based on a PPT demonstration manuscript assembly, and the LED display screen playing system is used for playing the PPT demonstration manuscript in the following mode:
the PPT presentation file component is a COM component;
1) the method comprises the steps that a repositioning module acquires a designated area and repositions a PPT presentation playing area;
in normal PPT presentation, slides are played in a full screen as a default, and the PPT presentation is set in a windowed manner and played in a designated area when the PPT presentation is played;
2) the method comprises the operation steps of solving the problem that the PPT demonstration manuscript can be opened for many times when the PPT demonstration manuscript is previewed in the program editing and playing stage; the specific operation steps are as follows:
step one, creating a vector in the STL, and storing the vector in the vector after adding the PPT presentation each time under the condition of previewing;
step two, comparing the PPT demonstration document needing to be played after the PPT demonstration document is clicked next time with a file in the vector, emptying the PPT demonstration document needing to be played after each comparison and storing the PPT demonstration document needing to be clicked currently into the vector if the PPT demonstration document is not the same PPT demonstration document;
step three, if the PPT presentation file is the same as the PPT presentation file and is played, the PPT presentation file is not opened, but the PPT presentation file is directly switched to a home page to be played again, and meanwhile, no processing is carried out on a vector;
3) the method comprises the following specific operation mode of solving the problem that the slide projector in the PPT demonstration document is abnormally thrown in the cross-thread operation:
after operating the UI of the COM component, delegating through an interface provided by the COM component, calling back a function, and transmitting an operation object to the COM component;
4) the method comprises the following operation mode that when the LED display playing system plays the PPT demonstration manuscript, the called COM assembly server throws an exception after overtime, and the operation mode is as follows:
the collemestagefilter class is used in visual editing servers and container applications, and in OLE automation applications; for server applications to be called, the class may keep the application in a "busy" state, and other container applications may cancel or retry their call requests at a later time.
Compared with the prior art, the invention has the beneficial effects that: the method for playing the PPT demonstration manuscript by the LED display screen playing system calls the original PPT demonstration manuscript assembly in the LED display playing system, and can also be used for a COM assembly. The PPT presentation file can be played in any area of a designated computer screen, and playing elements such as audio, animation, movies and the like in the PPT presentation file cannot be lost, so that the technical difficulty in the prior art is overcome.
Drawings
Fig. 1 is a flowchart of a method for playing a PPT presentation by an LED display screen playing system according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As is known, during normal playing of a PPT presentation, the PPT presentation may be converted into a corresponding picture format by storing, and during playing, full-screen playing is the default. However, in the LED display and play system, the principle of playing is that the LED display screen is connected to a sending card at the computer end, so that the picture content played by the LED display screen is consistent with the content played by the play computer, and once the play computer is turned off, the LED display screen cannot continue to play media. Due to the irregularity of the LED screen, the PPT presentation needs to be played at a designated place, so that the PPT presentation needs to be operated when the PPT presentation is embedded into a project to be played.
Referring to fig. 1, the method for playing the PPT presentation by the LED display screen playing system of the present invention is mainly based on the PPT presentation component, and the LED display screen playing system plays the PPT presentation by the following method:
the PPT presentation file component is a COM component;
1) the method comprises the steps that a repositioning module acquires a designated area and repositions a PPT presentation playing area;
in normal PPT presentation, slides are played in a full screen as a default, and the PPT presentation is set in a windowed manner and played in a designated area when the PPT presentation is played;
2) the method comprises the operation steps of solving the problem that the PPT demonstration manuscript can be opened for many times when the PPT demonstration manuscript is previewed in the program editing and playing stage; the specific operation steps are as follows:
step one, creating a vector in the STL, and storing the vector in the vector after adding the PPT presentation each time under the condition of previewing;
step two, comparing the PPT demonstration document needing to be played after the PPT demonstration document is clicked next time with a file in the vector, emptying the PPT demonstration document needing to be played after each comparison and storing the PPT demonstration document needing to be clicked currently into the vector if the PPT demonstration document is not the same PPT demonstration document;
step three, if the PPT presentation file is the same as the PPT presentation file and is played, the PPT presentation file is not opened, but the PPT presentation file is directly switched to a home page to be played again, and meanwhile, no processing is carried out on a vector;
3) the method comprises the following specific operation mode of solving the problem that the slide projector in the PPT demonstration document is abnormally thrown in the cross-thread operation:
after operating the UI of the COM component, delegating through an interface provided by the COM component, calling back a function, and transmitting an operation object to the COM component;
4) the method comprises the following operation mode that when the LED display playing system plays the PPT demonstration manuscript, the called COM assembly server throws an exception after overtime, and the operation mode is as follows:
the collemestagefilter class is used in visual editing servers and container applications, and in OLE automation applications; for server applications to be called, the class may keep the application in a "busy" state, and other container applications may cancel or retry their call requests at a later time.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (1)
1. A method for playing PPT demonstration manuscript by an LED display screen playing system is characterized by comprising the following steps: the method is mainly based on a PPT demonstration manuscript assembly, and the LED display screen playing system is used for playing the PPT demonstration manuscript in the following mode:
the PPT presentation file component is a COM component;
1) the method comprises the steps that a repositioning module acquires a designated area and repositions a PPT presentation playing area;
in normal PPT presentation, slides are played in a full screen as a default, or the PPT presentation is set in a windowing manner when the PPT presentation is played and played in a specified area;
2) the method comprises the operation steps of solving the problem that the PPT demonstration manuscript can be opened for many times when the PPT demonstration manuscript is previewed in the program editing and playing stage; the specific operation steps are as follows:
step one, creating a vector in the STL, and storing the vector in the vector after adding the PPT presentation each time under the condition of previewing;
step two, comparing the PPT demonstration document needing to be played after the PPT demonstration document is clicked next time with a file in the vector, emptying the PPT demonstration document needing to be played after each comparison and storing the PPT demonstration document needing to be clicked currently into the vector if the PPT demonstration document is not the same PPT demonstration document;
step three, if the PPT presentation file is the same as the PPT presentation file and is played, the PPT presentation file is not opened, but the PPT presentation file is directly switched to a home page to be played again, and meanwhile, no processing is carried out on a vector;
3) the method comprises the following specific operation mode of solving the problem that the slide projector in the PPT demonstration document is abnormally thrown in the cross-thread operation:
after operating the UI of the COM component, entrusting through an interface provided by the COM component, calling back a function, and transmitting an operation object to the COM component;
4) the method comprises the following operation mode that when the LED display playing system plays the PPT demonstration manuscript, the called COM assembly server throws an exception after overtime, and the operation mode is as follows:
the collemestagefilter class is used in visual editing servers and container applications, and in OLE automation applications; for server applications to be called, the class may keep the application in a "busy" state, and other container applications may cancel or retry their call requests at a later time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528691.6A CN107357542B (en) | 2017-07-01 | 2017-07-01 | Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528691.6A CN107357542B (en) | 2017-07-01 | 2017-07-01 | Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107357542A CN107357542A (en) | 2017-11-17 |
| CN107357542B true CN107357542B (en) | 2020-02-07 |
Family
ID=60272607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528691.6A Expired - Fee Related CN107357542B (en) | 2017-07-01 | 2017-07-01 | Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107357542B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495968A (en) * | 2020-04-02 | 2021-10-12 | 合肥龙发智能科技有限公司 | PPT presentation play system based on LED display screen |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455909A (en) * | 2011-02-25 | 2012-05-16 | 中标软件有限公司 | Method for asynchronously loading power point documents |
| CN105933626A (en) * | 2016-06-23 | 2016-09-07 | 郑雷 | Device and method for simultaneously displaying input video and additional information |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6836870B2 (en) * | 2001-06-15 | 2004-12-28 | Cubic Corporation | Method and system for incorporating a dynamic situation display in a powerpoint slide show presentation |
-
2017
- 2017-07-01 CN CN201710528691.6A patent/CN107357542B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455909A (en) * | 2011-02-25 | 2012-05-16 | 中标软件有限公司 | Method for asynchronously loading power point documents |
| CN105933626A (en) * | 2016-06-23 | 2016-09-07 | 郑雷 | Device and method for simultaneously displaying input video and additional information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107357542A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10514885B2 (en) | Apparatus and method for controlling audio mixing in virtual reality environments | |
| WO2020207132A1 (en) | Output method for audio data of apps and display device | |
| US10194112B2 (en) | Display device and control method therefor | |
| KR101507866B1 (en) | Method for producing advertisement content using a display device and display device for same | |
| US20190222624A1 (en) | Permission Request For Social Media Content In A Video Production System | |
| CN104902290B (en) | Manage the display device and its control method of multiple time source datas | |
| US20100088630A1 (en) | Content aware adaptive display | |
| CN104065979A (en) | Method for dynamically displaying information related with video content and system thereof | |
| KR102557574B1 (en) | Digital device and controlling method thereof | |
| CN107040847A (en) | System and its control method including main loudspeaker and secondary loudspeaker | |
| US11425466B2 (en) | Data transmission method and device | |
| CN102075800A (en) | File play control method and system based on interactive personnel television set top box | |
| CN106933523A (en) | A kind of multi-screen interaction method and device | |
| US10593302B2 (en) | Flexible television and method thereof | |
| CN107357542B (en) | Method for playing PPT (Power Point) demonstration manuscript by LED (light emitting diode) display screen playing system | |
| CN113946126A (en) | Full-media broadcast control system | |
| KR100969233B1 (en) | Multy information division display system for using network | |
| CN112788378B (en) | Display device and content display method | |
| KR20170090102A (en) | Digital device and method for controlling the same | |
| WO2023284498A1 (en) | Video playing method and apparatus, and storage medium | |
| CN111913776B (en) | Content display method, device and equipment | |
| KR100886149B1 (en) | Method for forming moving image by inserting image into original image and recording media | |
| US20190149782A1 (en) | Projection apparatus, for constituting projection of whole content by combining projection of plurality of partial content, control method for the same, and projection system | |
| KR20160148875A (en) | Display device and controlling method thereof | |
| EP3288342A1 (en) | A method of controlling lighting sources, corresponding system and computer program product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |