Multimedia display interaction control system under multi-screen environment

A technology of interactive control and control system, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problem of single display content, unable to directly control multiple different PPT slideshows, and unable to achieve perfect presentation and other problems to achieve the effect of quick discovery

Inactive Publication Date: 2015-04-22
BEIJING ZHENGWEN TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. It is impossible to directly realize multiple PPT slideshows in a set of hardware display environment
[0008] Multiple PPTs refer to multiple PPT files, and playback refers to playback using PowerPoint's "slide show" model, because PowerPoint provided by Microsoft is different from Word, Word supports opening multiple doc files at the same time, and multiple doc files Format files are opened in different word main windows, and when using PowerPoint, even if multiple PPT files are opened, these opened PPT files are all concentrated in one PowerPoint main window, so it is impossible to realize these opened multiple PPT files. PPT is played on different screens in a slide model;
[0009] 2. It is also impossible to directly realize linkage control to play multiple different PPT slides
However, in the prior art, multiple monitors can only display the same content, or multiple monitors display a single content as a whole, so the displayed content is very single, and the effect of perfect demonstration cannot be achieved

Method used

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  • Multimedia display interaction control system under multi-screen environment

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Embodiment Construction

[0075] The multi-screen display system provided by this patent refers to playing multimedia files on different screens in a set of application environments, and performing linkage or separate playback control. The multimedia files mentioned here can be the same or different.

[0076] In order to achieve the above-mentioned technical problems, the present invention designs a playback object maintainer, which is used to maintain playback resources. The playback resources here are maintained in a list mode. When a new multimedia file is opened and played each time, in the code A multimedia file object will be generated, and each object saves the HWND value of its own playback window handle. Taking the hash list as an example, the playback id of the multimedia file (the ID is accumulated) is used as the key, and the object is inserted into the in the hash list. In this way, the multimedia file can be played on a certain screen, and the multimedia file can be switched and displayed...

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Abstract

The invention provides a multimedia display interaction control system under multi-screen environment. According to the system, a set of multimedia files are played on different screens under one set of application environment, and unified linkage or respective play control can be carried out. The multimedia display interaction control system comprises a resource management module, a file loading module, a play control module and a control engine, wherein the resource management module maintains an opened multimedia file list and a display screen resource list. A multimedia file play object and a play window handle value are generated in a code every time a new multimedia file is opened and played. The multimedia play objects and the play window handle values are maintained in the multimedia file list, screen resource information of the system is maintained in the display screen resource list, certain-screen play or multi-screen switching display is carried out on the multimedia files through the control engine, and arbitrary combination and switching of respective control and linkage control over multiple display screens can be achieved through the play control module.

Description

technical field [0001] The invention belongs to the technical field of multimedia display, in particular to a multimedia display interactive control system in a multi-screen environment. Background technique [0002] With the continuous development of computer technology, product display and technical communication are increasingly dependent on multimedia demonstrations. In order to improve the demonstration effect and provide more flexible demonstration methods, the general multimedia conference room will be equipped with multiple monitors, and multiple monitors will be controlled by one computer at the same time. Currently, there are generally two ways to control multiple monitors from one computer: [0003] One method is: connect multiple monitors by setting multiple graphics cards on one host, and each monitor can be controlled separately by the computer; [0004] Another method is: use display duplication technology, no extra graphics card is needed, as long as simple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/472H04N21/6587
CPCH04N21/472H04N21/6587
Inventor 刘胜航陈政王宏安
Owner BEIJING ZHENGWEN TECH
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