xcreatebitmapfromdata.html
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<HTML><HEAD><TITLE>Xlib Programming Manual: XCreateBitmapFromData</TITLE></HEAD><BODY><H1 ALIGN=center>XCreateBitmapFromData</H1><H2>Syntax</H2><!.IN "XCreateBitmapFromData" "" "@DEF@"><CODE><PRE><A HREF="../pixmap-and-cursor/pixmap.html">Pixmap</A> XCreateBitmapFromData(<B>display</B>, <B>d</B>, <B>data</B>, <B>width</B>, <B>height</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; Drawable <B>d</B>; char *<B>data</B>; unsigned int <B>width</B>, <B>height</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>d</B><TD> Specifies the drawable that indicates the screen. <TR><TD> <B>data</B><TD> Specifies the location of the bitmap data.<TR><TD> <B>width</B><BR> <B>height</B><TD> Specify the width and height.</TABLE><H2>Description</H2>The<B>XCreateBitmapFromData()</B>function allows you to include in your C program (using<B>#include</B>)a bitmap file that was written out by<B><A HREF="XWriteBitmapFile.html">XWriteBitmapFile()</A></B>(X version 11 format only) without reading in the bitmap file.The following example creates a gray bitmap:<P><PRE><CODE>#include "gray.bitmap"Pixmap bitmap;bitmap = XCreateBitmapFromData(display, window, gray_bits, gray_width, gray_height);</PRE></CODE><P>If insufficient working storage was allocated,<B>XCreateBitmapFromData()</B>returns<B>None</B>.It is your responsibility to free thebitmap using<B><A HREF="../pixmap-and-cursor/XFreePixmap.html">XFreePixmap()</A></B>when finished.<P><B>XCreateBitmapFromData()</B>can generate a<B>BadAlloc</B>and<B>BadGC</B>errors.<H2>Diagnostics</H2><TABLE><TR><TD><B>BadAlloc</B><TD> The server failed to allocate the requested source or server memory.<TR><TD><B>BadGC</B><TD>A value for a <B><A HREF="../my-own/gcontext.html">GContext</A></B> argument does not name a defined <B><A HREF="../my-own/gcontext.html">GContext</A></B>.</TABLE><H2>See also</H2><B><A HREF="../pixmap-and-cursor/XCreatePixmap.html">XCreatePixmap()</A></B>,<B><A HREF="XCreatePixmapFromBitmapData.html">XCreatePixmapFromBitmapData()</A></B>,<B><A HREF="../graphics/XPutImage.html">XPutImage()</A></B>,<B><A HREF="XReadBitmapFile.html">XReadBitmapFile()</A></B>,<B><A HREF="XWriteBitmapFile.html">XWriteBitmapFile()</A></B>,"<A HREF="manipulating-bitmaps.html">Manipulating Bitmaps</A>".<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
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