classpvideodevice.html

pwlib开发文档

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<a name="a4" doxytag="PVideoDevice::Close"></a><p>
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          <td class="md" nowrap valign="top"> virtual BOOL PVideoDevice::Close </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> [pure virtual]</code></td>
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Close the device. 
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Implemented in <a class="el" href="classPVideoOutputDevice.html#a2">PVideoOutputDevice</a>, <a class="el" href="classPVideoInputDevice.html#a3">PVideoInputDevice</a>, and <a class="el" href="classPVideoInput1394DcDevice.html#a4">PVideoInput1394DcDevice</a>.    </td>
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<a name="a28" doxytag="PVideoDevice::GetBrightness"></a><p>
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          <td class="md" nowrap valign="top"> virtual int PVideoDevice::GetBrightness </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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Get the brightness of the image. 0xffff-Very bright. -1 is unknown. 
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Reimplemented in <a class="el" href="classPVideoInput1394DcDevice.html#a11">PVideoInput1394DcDevice</a>.    </td>
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<a name="a13" doxytag="PVideoDevice::GetChannel"></a><p>
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          <td class="md" nowrap valign="top"> virtual int PVideoDevice::GetChannel </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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Get the video channel to be used on the device.
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Default behaviour returns the value of the channelNumber variable.     </td>
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<a name="a32" doxytag="PVideoDevice::GetColour"></a><p>
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          <td class="md" nowrap valign="top"> virtual int PVideoDevice::GetColour </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 colour of the image. 0xffff-lots of colour. -1 is unknown. 
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Reimplemented in <a class="el" href="classPVideoInput1394DcDevice.html#a15">PVideoInput1394DcDevice</a>.    </td>
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<a name="a16" doxytag="PVideoDevice::GetColourFormat"></a><p>
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          <td class="md" nowrap valign="top"> const <a class="el" href="classPString.html">PString</a>&amp; PVideoDevice::GetColourFormat </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
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Get the colour format to be used.
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Default behaviour returns the value of the colourFormat variable.     </td>
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<a name="a34" doxytag="PVideoDevice::GetContrast"></a><p>
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          <td class="md" nowrap valign="top"> virtual int PVideoDevice::GetContrast </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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Get the contrast of the image. 0xffff-High contrast. -1 is unknown. 
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Reimplemented in <a class="el" href="classPVideoInput1394DcDevice.html#a17">PVideoInput1394DcDevice</a>.    </td>
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<a name="a7" doxytag="PVideoDevice::GetDeviceName"></a><p>
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          <td class="md" nowrap valign="top"> const <a class="el" href="classPString.html">PString</a>&amp; PVideoDevice::GetDeviceName </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> const<code> [inline]</code></td>
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Get the device name of the open device.     </td>
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<a name="a8" doxytag="PVideoDevice::GetDeviceNames"></a><p>
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          <td class="md" nowrap valign="top"> virtual <a class="el" href="classPStringList.html">PStringList</a> PVideoDevice::GetDeviceNames </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> [pure virtual]</code></td>
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Get a list of all of the drivers available.     </td>
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<a name="a24" doxytag="PVideoDevice::GetFrameHeight"></a><p>
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          <td class="md" nowrap valign="top"> virtual unsigned PVideoDevice::GetFrameHeight </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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Get the height of the frame being used.
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Default behaviour returns the value of the frameHeight variable     </td>
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<a name="a18" doxytag="PVideoDevice::GetFrameRate"></a><p>
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          <td class="md" nowrap valign="top"> virtual unsigned PVideoDevice::GetFrameRate </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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Get the video frame rate used on the device.
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Default behaviour returns the value of the frameRate variable.     </td>
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<a name="a22" doxytag="PVideoDevice::GetFrameSize"></a><p>
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          <td class="md" nowrap valign="top"> virtual BOOL PVideoDevice::GetFrameSize </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">unsigned &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>width</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>unsigned &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>height</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [virtual]</code></td>
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Get the frame size being used.
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Default behaviour returns the value of the frameWidth and frameHeight variable and returns TRUE.     </td>
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