📄 index.html
字号:
<HTML><HEAD><TITLE>Xlib Programming Manual: </TITLE></HEAD><BODY><H1 ALIGN=center>6.11 Gamut Querying Functions</H1>This section describes the gamut querying functions that Xlib provides.These functions allow the client to query the boundary of the screen's color gamut in terms of the CIE L*a*b*, CIE L*u*v*, and TekHVC color spaces.<!.IN "Gamut querying">Functions are also provided that allow you to query the color specification of:<UL><P><LI>White (full intensity red, green, and blue)<P><LI>Red (full intensity red while green and blue are zero)<P><LI>Green (full intensity green while red and blue are zero)<P><LI>Blue (full intensity blue while red and green are zero)<P><LI>Black (zero intensity red, green, and blue)</UL><P>The white point associated with color specifications passed to and returned from these gamut queryingfunctions is assumed to be the Screen White Point.<!.IN "Screen White Point">This is a reasonable assumption,because the client is trying to query the screen's color gamut.<P>The following naming convention is used for the Max and Min functions:<P><BLOCKQUOTE><I>Xcms<I><color_space></I>QueryMax<I><dimensions></I><BR>Xcms<I><color_space></I>QueryMin<I><dimensions></I></I></BLOCKQUOTE><P>The <dimensions> consists of a letter or letters that identify the dimensions of the color space that are not fixed.For example, <B><A HREF="XcmsTekHVCQueryMaxC.html">XcmsTekHVCQueryMaxC()</A></B>is given a fixed Hue and Value for which maximum Chroma is found.<H5 ALIGN=right><I>Next: <A HREF="red-green-blue.html">Red, Green, and Blue Queries</A></I></H5><HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -