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7<TITLE>CAMERA_I2CFrameRate*</TITLE>
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11<H1 align="left">CAMERA_I2CFrameRate* <IMG src="../image/TWL.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <CODE>#include &lt;twl/camera.h&gt;</CODE><BR>
16  <BR>
17  <CODE><A href="CAMERAResult.html">CAMERAResult</A> CAMERA_I2CFrameRate(<A href="CAMERASelect.html">CAMERASelect</A> camera, <A href="CAMERAFrameRate.html">CAMERAFrameRate</A> rate);</CODE>
18  <BR>
19  <CODE><A href="CAMERAResult.html">CAMERAResult</A> CAMERA_I2CFrameRateAsync(<A href="CAMERASelect.html">CAMERASelect</A> camera, <A href="CAMERAFrameRate.html">CAMERAFrameRate</A> rate, <A href="CAMERACallback.html">CAMERACallback</A> callback, void *arg);</CODE>
20</DL>
21<H2>Arguments</H2>
22<TABLE border="1" width="100%">
23  <TBODY>
24    <TR>
25<TD width="13%"><SPAN class="argument">camera</SPAN></TD>
26<TD width="87%">Camera to configure (<CODE>CAMERA_SELECT_IN</CODE>, <CODE>CAMERA_SELECT_OUT</CODE>, or <CODE>CAMERA_SELECT_BOTH</CODE>).</TD>
27    </TR>
28    <TR>
29<TD width="13%"><SPAN class="argument">rate</SPAN></TD>
30<TD width="87%">Frame rate.</TD>
31    </TR>
32    <TR>
33<TD width="13%"><SPAN class="argument">callback</SPAN></TD>
34<TD width="87%">Function that is called when asynchronous processing has completed.</TD>
35    </TR>
36    <TR>
37<TD width="13%"><SPAN class="argument">arg</SPAN></TD>
38<TD width="87%">Arguments when the callback function is invoked.</TD>
39    </TR>
40  </TBODY>
41</TABLE>
42
43<H2>Return Values</H2>
44<P>
45Returns <CODE>CAMERA_RESULT_SUCCESS</CODE> if configuration was successful.
46</P>
47
48<H2>Description</H2>
49<P>
50Changes the camera's frame rate.<BR><BR> Unlike <code>CAMERA_I2CFrameRate</code>, the <code>CAMERA_I2CFrameRateAsync</code> function returns control immediately and runs asynchronously. Use <SPAN class="argument">callback</SPAN> to confirm that processing has completed.<BR><BR>Do not set  <CODE>CAMERA_FRAME_RATE_30_TO_5</CODE> or <CODE>CAMERA_FRAME_RATE_30</CODE> with this function while either <CODE>CAMERA_SIZE_VGA</CODE> or <CODE>CAMERA_SIZE_DS_LCDx4</CODE> is specified with the <A href="CAMERA_I2CSize.html"><CODE>CAMERA_I2CSize*</CODE></A> functions. You can no longer obtain capture data if these two settings are used at the same time.
51</P>
52
53<H2>See Also</H2>
54<P><A href="CAMERASelect.html"><CODE>CAMERASelect</CODE></A><BR> <A href="CAMERACallback.html"><CODE>CAMERACallback</CODE></A><BR> <A href="CAMERAResult.html"><CODE>CAMERAResult</CODE></A><BR> <A href="CAMERAFrameRate.html"><CODE>CAMERAFrameRate</CODE></A><BR> <A href="CAMERA_I2CSize.html"><CODE>CAMERA_I2CSize*</CODE></A></P>
55<H2>Revision History</H2>
56<P>
572008/10/30 Added that <CODE>CAMERA_SELECT_BOTH</CODE> also can be specified.<br> 2008/03/17 Explained that images cannot be captured at 30 fps for the DS_LCDx4 size.<br> 2008/01/23 Explained that images cannot be captured at 30 fps for the VGA size.<br> 2007/11/12 Initial version.</P>
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