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7<title>WBT_CalcPacketbitmapSize</title>
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11<h1 align="left">WBT_CalcPacketbitmapSize&nbsp;<img src="../../image/NTR.gif"><img src="../../image/TWL.gif"></h1>
12<h2>Syntax</h2>
13<dl>
14  <dd>
15<CODE>#include &lt;nitro/wbt.h&gt;</CODE><BR>
16  <BR>
17  <CODE>int WBT_CalcPacketbitmapSize(int block_size);</CODE><br>
18  <br>
19  </dd>
20</dl>
21<h2>Arguments</h2>
22<p>
23<TABLE border="1" width="100%">
24  <TBODY>
25    <TR>
26      <TD width="13%"><CODE>block_size</CODE></TD>
27      <TD width="87%">Size of the data to be received.</TD>
28    </TR>
29  </TBODY>
30</TABLE>
31</p>
32<h2>Return Values</h2>
33<p>Returns the receive archive record bitmap buffer size required to receive the corresponding amount of data.</p>
34<H2>Description</H2>
35<p>Calculates and acquires the size required for the bitmap buffer for receive history records when receiving a specified data size with the <A href="../command/WBT_GetBlock.html"><code>WBT_GetBlock</code></A> function.<br><br> Parents can only use this function after the <A href="../init/WBT_InitParent.html"><code>WBT_InitParent</code></A> function, and children can only use this function after the <A href="../command/WBT_RequestSync.html"><code>WBT_RequestSync</code></A> function. If the transmission packet size and the receive block data size are already known, the <A href="../wbt_packet_bitmap_size.html"><CODE>WBT_PACKET_BITMAP_SIZE</CODE></A> macro obtains the same results. <br>
36</p>
37<br>
38<H2>See Also</H2>
39<A href="../command/WBT_GetBlock.html"><code>WBT_GetBlock</code></A><br> <A href="../wbt_packet_bitmap_size.html"><code>WBT_PACKET_BITMAP_SIZE</code></A>
40<H2>Revision History</H2>
41<P>
422005/02/18 Changed description of packet bitmap to &quot;receive archive record bitmap buffer.&quot;<br /> 2004/09/21 Initial version.
43</P>
44<hr><p>CONFIDENTIAL</p></body>
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