xfetchbytes.html
来自「linux图形界面x liberary手册」· HTML 代码 · 共 56 行
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<HTML><HEAD><TITLE>Xlib Programming Manual: XFetchBytes</TITLE></HEAD><BODY><H1 ALIGN=center>XFetchBytes</H1><H2>Syntax</H2><!.IN "XFetchBytes" "" "@DEF@"><CODE><PRE>char *XFetchBytes(<B>display</B>, <B>nbytes_return</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; int *<B>nbytes_return</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>nbytes_return</B><TD> Returns the number of bytes in the buffer.</TABLE><H2>Description</H2>The<B>XFetchBytes()</B>functionreturns the number of bytes in the nbytes_return argument,if the buffer contains data.Otherwise, the functionreturns NULL and sets nbytes to 0.The appropriate amount of storage is allocated and the pointer returned.The client must free this storage when finished with it by calling<B><A HREF="../display/XFree.html">XFree()</A></B>.<H2>See also</H2><B><A HREF="XFetchBuffer.html">XFetchBuffer()</A></B>,<B><A HREF="XRotateBuffers.html">XRotateBuffers()</A></B>,<B><A HREF="XStoreBuffer.html">XStoreBuffer()</A></B>,<B><A HREF="XStoreBytes.html">XStoreBytes()</A></B>,"<A HREF="using-cut-buffers.html">Using Cut Buffers</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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