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BOOL PVideoChannel::IsOpen (  )  const [virtual]

return True if one (or both) of the video device class pointers is non NULL. If either pointer is non NULL, then a device is ready to be written to, which indicates this channel is open.

Reimplemented from PChannel.

Definition at line 207 of file pvidchan.cxx.

References accessMutex, mpInput, and mpOutput.

   PWaitAndSignal m(accessMutex);

   return (mpInput != NULL) || (mpOutput != NULL);

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