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AM_OVERLAY_NOTIFY_FLAGS Enumeration

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Microsoft DirectShow 9.0

AM_OVERLAY_NOTIFY_FLAGS Enumeration

The AM_OVERLAY_NOTIFY_FLAGS enumeration indicates what the overlay has changed, or is about to change.

Syntax

  typedef enum _AM_OVERLAY_NOTIFY_FLAGS {
    AM_OVERLAY_NOTIFY_VISIBLE_CHANGE  = 0x00000001,
    AM_OVERLAY_NOTIFY_SOURCE_CHANGE   = 0x00000002,
    AM_OVERLAY_NOTIFY_DEST_CHANGE     = 0x00000004
};

Members

AM_OVERLAY_NOTIFY_VISIBLE_CHANGE

The rectangle will be changed from visible to invisible, or vice-versa.

AM_OVERLAY_NOTIFY_SOURCE_CHANGE

Source rectangle changed or changing.

AM_OVERLAY_NOTIFY_DEST_CHANGE

Destination rectangle changed or changing.

Remarks

The IDDrawExclModeVideoCallback::OnUpdateOverlay method uses these flags to indicate how the overlay has changed, so that applications can take the necessary steps.

Requirements

  Header: Dshow.h

See Also