Window refreshing method and device

A window and window size technology, which is applied in the field of window refresh method and device, can solve the problems that the display delay of background pictures still exists, and achieve the effect of saving drawing time and improving speed

Inactive Publication Date: 2012-05-09
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Double buffering technology creates a memory object and draws the background picture every time the window is refreshed. This method improves the display effect and makes the display of the background picture no longer flickering, but the display delay of the background picture still exists

Method used

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  • Window refreshing method and device
  • Window refreshing method and device

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Embodiment Construction

[0019] In double-buffering technology, repeated image drawing is the main reason for the slow refresh rate of the window. From the perspective of reducing the number of times of drawing, the present invention separates the picture drawing operation from the window refresh operation, such as figure 1 As shown, when the background image is not updated and the size and shape of the window are not changed, the background image is not redrawn, thereby saving a lot of time and improving the window refresh speed. The present invention will be explained in detail below with reference to the accompanying drawings.

[0020] The window refresh method of the present invention, such as figure 2 shown, including steps:

[0021] Step 1. When the window is created, create a picture of the same size as the window as the memory object, the picture should be adapted to the display device, fill the memory object with the default background color, or cover the memory object with the default bac...

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PUM

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Abstract

The invention discloses a window refreshing method. Double buffering technology is improved; a background picture drawing operation is separated from a window refreshing operation; the background picture drawing operation is performed only when a background picture is updated or the size or shape of the window is changed, in stead of being drawn again at each refreshing; therefore, lots of background picture drawing time is saved and the window refreshing speed is increased. The invention also discloses a window refreshing device corresponding to the method; and the method and the device are combined so that the purposes of the invention can be achieved.

Description

technical field [0001] The present invention relates to the technical field of image display, and in particular, to a window refresh method and device. Background technique [0002] At present, various software functions are more and more, and the interface display is also more and more abundant. This brings the problems of complex image processing and slow picture display speed. When the user operates the software window, especially when the software window is refreshed repeatedly, the background picture may be displayed slowly, the background picture flicker, etc., which seriously affects the user experience. [0003] The current technology mainly adopts the double buffering technology to solve the flickering problem when the window is refreshed. The double buffering technique creates a memory object and draws the background image every time the window is refreshed. This method improves the display effect and makes the display of the background image no longer flicker, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14
Inventor 廖天素陈先志
Owner GUANGDONG VTRON TECH CO LTD
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