Remote desktop system windows cache method

A remote desktop and window technology, applied in the field of remote desktop systems, can solve the problems of increasing the burden of network communication and inability to optimize, and achieve the effect of reducing the amount of data transmission and improving the response speed.

Inactive Publication Date: 2008-11-19
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the defect that the existing remote desktop system cannot be optimized when switching windows, which increases the communication burden of the network, thereby providing a window caching method that can reduce the network communication burden when switching windows

Method used

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  • Remote desktop system windows cache method
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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] In a remote desktop system, there is a client and a server, and the user controls the remote desktop of the server through the client. There are separate caches on the client and server side. Suppose the user opens two windows, window A and window B respectively, and the user needs to switch back and forth between A and B in subsequent operations. In each switch, one window gets the desktop focus, and another window loses focus and is covered.

[0026] Assume the following sequence of operations is given:

[0027] 1. At the beginning of the remote desktop, window A occupies the focus and is displayed in full screen;

[0028] 2. The user issues a window switching command on the client side, the server side switches the window to B, and then transmits all interface data of B to the client side, and window B occupies the focus on the cli...

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Abstract

The invention provides a window caching method in a remote desktop system and comprises the following steps: the user sends a window switching command; the content of a first window occupying the focuses of the client and the server is stored in the buffers of the client and the server respectively; a second window which is at the background of the server and is switched by the window switching command occupies a focus, and then the changing amount of the second window at the background of the server is calculated; the changing amount of the second window is combined with the second window in the client buffer at the client, and the result occupies the screen focus of the client. The invention improves the window switching response time and reduces the data transmission amount in window switching.

Description

technical field [0001] The invention relates to a remote desktop system, in particular to a window cache method in the remote desktop system. Background technique [0002] Remote desktop systems represented by Microsoft RDP, Citrix ICA and VNC have been widely used. The main working method of this type of system is: the desktop of the remote server or an application interface is mapped to the local client through the remote desktop protocol for display. Powerful computing resources. [0003] In the process of remote control, considering that the network communication capability between the local client and the remote server will be limited by external conditions, and the network communication capability will often become a key factor restricting system performance, so in the existing remote desktop In the system, the cache is used to improve the performance of the system. For example, two types of cache technologies are used in Microsoft RDP: bitmap cache (Bitmap Cache), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14H04L29/06
Inventor 李忠孙毓忠
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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