通过

SIZE_PREHEADER

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Microsoft DirectShow 9.0

SIZE_PREHEADER

The SIZE_PREHEADER macro calculates the byte offset of the bmiHeader field within a VIDEOINFOHEADER structure.

Syntax

  SIZE_PREHEADER

Return Value

Returns the byte offset.

Requirements

**  Header:** Declared in Amvideo.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also