Summary
When making graphics driver or FrameBuffer, it may encounter knowledge about OSD. The following information is put into the following, and there is a very simple and practical example, I hope to help everyone!
-------------------------------------------------- ------- Disclaimer: This article is original, welcome to reprint, please keep the following information author: Nie Fei (afreez) Beijing - Zhongguancun Contact: afreez@sina.com (welcome exchange with the author) first published: 2006-06-21 Without the consent, it is not allowed to use the business or the profit nature, otherwise, the author has the right to investigate the relevant responsibility! -------------------------------------------------- -------
OSD related definition explanation
OSD (On-Screen Display) screen view control system.
Early screens To adjust the settings, you must use the rotating buttons under the screen, which can be adjusted less. However, with the advancement of technology, the manufacturer develops a new OSD function, which can display the relevant settings of the screen on the screen, and more functions are more functions.
See: http://www.broadcast.hc360.com/dic/html/3926.htm
OSD (On-Screen Display) is the content that directly displays the results and settings of the user's adjustments on the screen. Currently, many digital screens support OSD, so the screen can display the width, height, brightness, contrast and color system. The settings are done directly on the screen. This function is directly supported by the monitor hardware, and the driver of the operating system is not necessarily used, even if the computer connected to the monitor can also use OSD.
See: http://www.chungkt.hk/cit/dic/O/O0048.html
On-Screen Display
An on-screen display (OSD) is a control panel on a computer monitor or television screen that allows you to select viewing options and / or adjust components of the display, such as brightness, contrast, and horizontal and vertical positioning.
On a computer monitor, an on-screen display is usually activated by buttons on the bottom of the monitor. As an example, one button may bring up a display of the brightness and contrast levels, which may be adjusted by pressing the monitor's up or Down Arrow Buttons.
On a television screen, an on-screen display can usually be activated either through buttons on the television set itself or through the remote control. Television on-screen displays are becoming increasingly complex and interactive. In addition to the visual calibration options, the on -screen display may allow you to view program information, search for programs, or put certain channels under parental control.See: http: //whatis.techtarget.com/definition/0,,sid9_gci967843,00.html
A screenshot of an example I made:
Reference: http://www.hamans.com/osd/
I mentioned a small software that needs to download related, if you need it, you can leave your email, I will send it to you.
