classpvideoinput1394dcdevice.html

pwlib开发文档

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          <td class="md" nowrap>unsigned &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>minHeight</em>, </td>
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          <td class="md" nowrap>unsigned &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>maxWidth</em>, </td>
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          <td class="md" nowrap>unsigned &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>maxHeight</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [virtual]</code></td>
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<p>
Get the minimum &amp; maximum size of a frame on the device. <dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>minHeight</em>&nbsp;</td><td>
Variable to receive minimum width </td></tr>
<tr><td valign=top><em>maxWidth</em>&nbsp;</td><td>
Variable to receive minimum height </td></tr>
<tr><td valign=top><em>maxHeight</em>&nbsp;</td><td>
Variable to receive maximum width Variable to receive maximum height </td></tr>
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<p>
Reimplemented from <a class="el" href="classPVideoDevice.html#a19">PVideoDevice</a>.    </td>
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<a name="a19" doxytag="PVideoInput1394DcDevice::GetHue"></a><p>
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          <td class="md" nowrap valign="top"> int PVideoInput1394DcDevice::GetHue </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Get the hue of the image. 0xffff-High hue. 
<p>
Reimplemented from <a class="el" href="classPVideoDevice.html#a36">PVideoDevice</a>.    </td>
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<a name="d0" doxytag="PVideoInput1394DcDevice::GetInputDeviceNames"></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="classPStringList.html">PStringList</a> PVideoInput1394DcDevice::GetInputDeviceNames </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<p>
Get a list of all of the drivers available.     </td>
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<a name="a8" doxytag="PVideoInput1394DcDevice::GetMaxFrameBytes"></a><p>
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          <td class="md" nowrap valign="top"> PINDEX PVideoInput1394DcDevice::GetMaxFrameBytes </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Get the maximum frame size in bytes.
<p>
Note a particular device may be able to provide variable length frames (eg motion JPEG) so will be the maximum size of all frames. 
<p>
Implements <a class="el" href="classPVideoInputDevice.html#a5">PVideoInputDevice</a>.    </td>
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<a name="a24" doxytag="PVideoInput1394DcDevice::GetNumChannels"></a><p>
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          <td class="md" nowrap valign="top"> int PVideoInput1394DcDevice::GetNumChannels </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Get the number of video channels available on the device.
<p>
Default behaviour returns 1. 
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Reimplemented from <a class="el" href="classPVideoDevice.html#a11">PVideoDevice</a>.    </td>
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<a name="a21" doxytag="PVideoInput1394DcDevice::GetParameters"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PVideoInput1394DcDevice::GetParameters </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>whiteness</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>int *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>brightness</em>, </td>
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          <td></td>
          <td class="md" nowrap>int *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>colour</em>, </td>
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          <td></td>
          <td class="md" nowrap>int *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>contrast</em>, </td>
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          <td></td>
          <td class="md" nowrap>int *&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>hue</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [virtual]</code></td>
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<p>
Return whiteness, brightness, colour, contrast and hue in one call. 
<p>
Reimplemented from <a class="el" href="classPVideoDevice.html#a38">PVideoDevice</a>.    </td>
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<a name="a13" doxytag="PVideoInput1394DcDevice::GetWhiteness"></a><p>
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          <td class="md" nowrap valign="top"> int PVideoInput1394DcDevice::GetWhiteness </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Get the whiteness of the image. 0xffff-Very white. 
<p>
Reimplemented from <a class="el" href="classPVideoDevice.html#a30">PVideoDevice</a>.    </td>
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<a name="a7" doxytag="PVideoInput1394DcDevice::IsCapturing"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PVideoInput1394DcDevice::IsCapturing </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Determine if the video device I/O capture is in progress. 
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Implements <a class="el" href="classPVideoInputDevice.html#a4">PVideoInputDevice</a>.    </td>
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<a name="a3" doxytag="PVideoInput1394DcDevice::IsOpen"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PVideoInput1394DcDevice::IsOpen </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Determine of the device is currently open. 
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Implements <a class="el" href="classPVideoDevice.html#a3">PVideoDevice</a>.    </td>
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<a name="a2" doxytag="PVideoInput1394DcDevice::Open"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PVideoInput1394DcDevice::Open </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPString.html">PString</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>deviceName</em>, </td>
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          <td class="md" nowrap>BOOL&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>startImmediate</em> = TRUE</td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [virtual]</code></td>
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<p>
Open the device given the device name. <dl compact><dt><b>Parameters: </b></dt><dd>
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Device name to open Immediately start device </td></tr>
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Implements <a class="el" href="classPVideoInputDevice.html#a2">PVideoInputDevice</a>.    </td>
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<a name="a12" doxytag="PVideoInput1394DcDevice::SetBrightness"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PVideoInput1394DcDevice::SetBrightness </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">unsigned&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>newBrightness</em>          </td>