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Method for rolling display of character string

A scrolling display and character string technology, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of scrolling display strings occupying large system memory and CPU resources, system response speed decline, etc., to avoid emptying The effect of scrolling the operation steps in the display area, improving the response speed, and reducing the load

Inactive Publication Date: 2012-01-11
HISENSE BROADBAND MULTIMEDIA TECH
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem in the prior art that scrolling and displaying character strings needs to occupy a large amount of system memory and CPU resources, resulting in a decrease in system response speed, the present invention provides a method for scrolling and displaying character strings. By establishing a buffer in the system, storing The scrolling display of character strings only operates on the buffer every time the characters are refreshed, reducing the occupation of system memory and CPU, and improving the overall response speed of the system

Method used

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  • Method for rolling display of character string
  • Method for rolling display of character string

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] The present invention takes the resource occupation caused by the scrolling display of strings in the prior art as a starting point, reconsiders the scrolling implementation method, and provides a scrolling display string method, specifically: first create a buffer in the memory, and then Write the character string displayed by scrolling into the buffer; when performing scrolling display, directly read the characters from the buffer and refresh to the scrolling display area, and only refresh the buffer each time the characters are refreshed Just operate; when the scroll display stops, release the created buffer and return to system resources. The present invention writes all the character strings that need to be scrolled into the buffer at one time by establishing a buffer in the memory, and only operates on the buffer each time the character is refres...

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Abstract

The invention discloses a method for rolling display of a character string, which comprises the following steps of: establishing a buffer area; writing the rolling displayed character string into the buffer area; and reading characters from the buffer area and refreshing to a rolling display area for display. The buffer area is established inside a system to store the rolling displayed character string, and only the buffer area is operated when the characters are refreshed each time, thereby reducing the occupation for a system memory and a CPU and improving the response speed of the integralsystem.

Description

technical field [0001] The invention relates to a method for displaying character strings, in particular to a method for scrolling and displaying character strings. Background technique [0002] In order to improve the dynamic display effect of character strings and improve the utilization rate of the display screen, it is often necessary to scroll and display the character strings on the display screen. In the prior art, when scrolling and displaying character strings, it is first necessary to clear the scrolling display area on the display screen, then call the font library, find the characters in the string to be displayed, refresh them to the scrolling display area, and then shift the string pointer to the next character. After the current screen is displayed, clear the scrolling display area again, then call the font library, find the characters to be displayed on the next screen, and refresh them to the scrolling display area. When the pointer points to the end of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/22G09G5/30G09G5/34
Inventor 柳玉琨
Owner HISENSE BROADBAND MULTIMEDIA TECH
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