Computer screen interception method and system thereof

A computer screen, computer technology, applied in the direction of program control devices, etc., can solve problems such as image overlay errors, and achieve the effect of convenient extraction

Active Publication Date: 2010-12-29
南通卓效自动化有限公司
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Problems solved by technology

[0003] Aiming at the defect that image overlay errors are prone to occur in the computer screen capture method of the prior art, the technical problem to be solved by the present invention is to provide a computer screen capture method capable of capturing s

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  • Computer screen interception method and system thereof
  • Computer screen interception method and system thereof
  • Computer screen interception method and system thereof

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[0018] See image 3 , image 3 It is a schematic flowchart of the computer screen capture method of the present invention.

[0019] The computer screen capture method includes the following steps:

[0020] S301, capture a GDI image;

[0021] As an embodiment, when capturing GDI (Graphics Device Interface, graphics device interface) images, the Mirror Driver (mirror drive technology) recommended by Microsoft Corporation can be called to capture GDI images. The Mirror Driver is a driver program specially used to capture the image output through the graphics device interface. When the Mirror Driver is running, it will obtain GDI image data from the graphics device interface and create an image buffer to cache the acquired GDI image data.

[0022] In this step, the method of capturing the GDI image is not limited to using the Mirror Driver technology, and other GDI image acquisition technologies in the field can also be used, for example, the Hook API technology is used to intercept the G...

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Abstract

The invention provides a computer screen interception method and system thereof. The method comprises the following steps of: capturing a GDI image, obtaining a window handle of a Driect 3D data window, establishing a tracking window according to the window handle, and setting the tracking window to track the position and cutting area of the Driect 3D data window in a displayed picture of a computer; capturing the image of the Driect 3D data window; cutting the image of the Driect 3D data window according to the cutting area recorded by the tracking window; and combining the cut image of the Driect 3D data window with the GDI image according to the position of the tracking window. The computer screen interception method and the system thereof provided by the invention can intercept the displayed picture on the screen of the computer according to a correct window stacking order, successfully acquire the GDI image and the Driect 3D image in the same displayed picture and stack the acquired images according to a correct stacking order, which is convenient for a remote application program to pick up screen images.

Description

technical field [0001] The invention relates to the technical field of computer image processing, in particular to a computer screen capture method and a computer screen capture system. Background technique [0002] In the real-time remote application of computers, it is usually necessary to obtain the display screen image of the local computer at the remote end, and perform remote operation according to the display screen image, so the image data of the display screen of the local computer is collected and reproduced at the remote end. The method for obtaining computer display screen images in the prior art usually adopts the Mirror Driver driver program recommended by Microsoft Corporation to realize; Take the image output through the graphics device interface, but cannot capture the 3D image generated through the Direct 3D API. In order to capture the Direct 3D image, Hook Direct3D API is usually used to intercept the Direct 3D image saved in the back buffer after hardwa...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 李嵘
Owner 南通卓效自动化有限公司
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