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<HTML><STYLE> <!-- A{textdecoration:none} --></STYLE><STYLE type="text/css"> A:link, A:visited, A:active { text-decoration: none; }</STYLE><HEAD> <TITLE>IDirectFBDataBuffer - PeekData [DirectFB Reference Manual]</TITLE></HEAD><BODY bgcolor=#FFFFFF link=#0070FF vlink=#0070FF text=#404040><TABLE width=100% bgcolor=black border=0 cellspacing=1 cellpadding=3> <TR><TD width=30%> <A href="http://www.directfb.org"><IMG border=0 src="directfb.png"></A> </TD><TD align=right> <A href="index.html"><FONT size=+3 color=white>Reference Manual - 0.9.25</FONT></A> </TD></TR> <TR><TD colspan=2 align=center bgcolor=#303030> <TABLE border=0 cellspacing=0 cellpadding=0> <TR><TD nowrap align=right width=50%> <BIG><A href="IDirectFBDataBuffer.html"><FONT color=#DDDDDD>IDirectFBDataBuffer</FONT></A> </BIG> </TD><TD nowrap align=left width=50%> <BIG><FONT color=orange> PeekData</FONT></BIG> </TD></TR> </TABLE> </TD></TR></TABLE><P> Peek data from a streaming or static buffer.</P><P> <TABLE border=0 cellspacing=0 cellpadding=2 bgcolor=#C0C0C0> <TR><TD colspan=5><I><FONT color=black>PeekData (</FONT></I></TD></TR> <TR><TD width=50> </TD><TD valign=top> <A href="IDirectFBDataBuffer.html">IDirectFBDataBuffer</A> </TD><TD width=20> </TD><TD align=right> <FONT color=black><B>*</B></FONT> </TD><TD valign=top> <FONT color=black><B>thiz,</B></FONT> </TD></TR> <TR><TD width=50> </TD><TD valign=top> unsigned int </TD><TD width=20> </TD><TD align=right> <FONT color=black><B></B></FONT> </TD><TD valign=top> <FONT color=black><B>length,</B></FONT> </TD></TR> <TR><TD width=50> </TD><TD valign=top> int </TD><TD width=20> </TD><TD align=right> <FONT color=black><B></B></FONT> </TD><TD valign=top> <FONT color=black><B>offset,</B></FONT> </TD></TR> <TR><TD width=50> </TD><TD valign=top> void </TD><TD width=20> </TD><TD align=right> <FONT color=black><B>*</B></FONT> </TD><TD valign=top> <FONT color=black><B>ret_data,</B></FONT> </TD></TR> <TR><TD width=50> </TD><TD valign=top> unsigned int </TD><TD width=20> </TD><TD align=right> <FONT color=black><B>*</B></FONT> </TD><TD valign=top> <FONT color=black><B>ret_read</B></FONT> </TD></TR> <TR><TD colspan=3><I><FONT color=black>);</FONT></I></TD></TR> </TABLE></P><P> Unlike GetData() this method won't increase the data pointer or flush any portions of the data held. </P><P> Additionally an offset relative to the current data pointer or beginning of the streaming buffer can be specified. </P><P> The maximum number of bytes to peek is specified by "length", the actual number of bytes peeked is returned via "read".</P></BODY></HTML>⌨️ 快捷键说明
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