GetVideoPortField

The GetVideoPortField callback function determines whether the current field of an interlaced signal is even or odd. This callback is only required if the DDVPCAPS_READBACKFIELD flag is set in the DDVIDEOPORTCAPS structure.

DWORD __stdcall GetVideoPortField(
LPDDHAL_GETVPORTFIELDDATA pgvpfd );

Parameters

  • pgvpfd
    Pointer to a DDHAL_GETVPORTFIELDDATA structure that contains the information required to determine whether the current field of an interlaced signal is even or odd.

Return Values

Returns one of the following values:

  • DDHAL_DRIVER_HANDLED
  • DDHAL_DRIVER_NOTHANDLED

 Last updated on Tuesday, July 13, 2004

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