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Screen projection method, device and system

A technology of equipment and screen projection, which is applied in the direction of digital output to display equipment, instruments, and electronic digital data processing, etc., which can solve the problems of privacy or confidentiality and other content leakage, decreased accuracy and timeliness of mouse operation, and inconvenient mouse operation. To achieve the effect of ease of operation, realization of operation and accuracy and timeliness

Pending Publication Date: 2021-05-07
深圳乐播科技有限公司
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Problems solved by technology

[0003] In order to solve the existing problems of leakage of privacy or confidentiality when using the main screen sharing when using the main screen, inconvenient mouse operation and reduced mouse operation accuracy and timeliness when using split-screen sharing, the present invention provides a method, device and system for screen projection , add real-time mouse information to the image of the application window that needs to be projected, only realize the projection of a single application window, avoid privacy leakage, realize the synchronous projection of the application window content and the mouse, and improve the accuracy and timeliness of mouse operation

Method used

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  • Screen projection method, device and system

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Embodiment 1

[0044] Such as figure 1A screen projection method is shown, which is suitable for screen projection front-end equipment. Specifically, the method includes the following steps:

[0045] A. The user obtains the user's screen projection start request when the user starts the screen projection.

[0046] B. Obtain the information of the currently available application windows, and display the information of the currently available application windows so that the sharer can determine the application windows that need to be shared. The display here can be displayed to the user in the form of application window thumbnails or file lists.

[0047] C. After the sharer, that is, the user, confirms the designation of the application window to be shared, obtain the information of the application window to be mirrored.

[0048] D. Intercept the image of the application window to be projected and obtain the mouse position information and application window position information at the corres...

Embodiment 2

[0053] Based on the principles of the foregoing embodiments, this embodiment discloses a specific optimized implementation manner.

[0054] When using the screen casting function, the user selects the start screen casting button. After receiving the request, the screen casting front-end device obtains and displays the application window information that can be currently cast. After obtaining the display information, the user selects the application window to be mirrored. After receiving the selection information, the screen projection front-end device calls the api-based screenshot program to take a screenshot of the corresponding application window, and the screenshot is made with the window handle, and the window position change or occlusion will not affect the collection of application window data. When capturing the application window image, the mouse position information and the application window position information at the corresponding moment are obtained to ensure the...

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Abstract

The invention discloses a screen projection method, device and system. The method comprises the following steps: acquiring a screen projection starting request; acquiring and displaying current screen-projectable application window information; acquiring application window information needing screen projection; intercepting an application window image and acquiring mouse position information and application window position information at corresponding moments; adding corresponding mouse information in the intercepted application window image according to the position information of the mouse and the application window; zooming and coding the image; and sending the encoded image. Real-time mouse information is added into an application window image needing screen projection, screen projection of a single application window is only achieved, privacy leakage is avoided, synchronous screen projection of application window content and a mouse is achieved, and the accuracy and timeliness of mouse operation are improved conveniently.

Description

technical field [0001] The invention belongs to the technical field of screen sharing, and in particular relates to a screen projection method, device and system. Background technique [0002] Wireless screen projection technology is also called wireless screen sharing, flying screen, and screen sharing. The existing wireless screen projection technology uses main screen sharing or split screen sharing. In some application scenarios, such as meeting scenarios, when the entire main screen is being screened, not all content or applications need to be screen shared. Some content or The application belongs to personal privacy or content that the company needs to keep secret, such as chat information, enterprise OA information, etc., when screen sharing, these privacy will be made public. At this time, the method of split-screen sharing can effectively prevent private or confidential content from being disclosed. However, the method of split-screen sharing has the following prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/451G06F3/14G06F3/038G06F21/84
CPCG06F9/452G06F3/1454G06F3/0383G06F21/84
Inventor 王志军陈锡华
Owner 深圳乐播科技有限公司
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