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WMT_VIDEOIMAGE_TRANSITION_REVEAL

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[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The reveal transition reveals the new image along a straight line originating from one side of the frame.

Parameters

The following table describes the parameters used by this transition and lists the members of the WMT_VIDEOIMAGE_SAMPLE2 structure to which they are assigned.

Parameter Structure member Description
Distance fEffectPara0 Amount of the new image revealed, in pixels. This value is relative to the originating side of the frame.
Direction fEffectPara1 Direction of the revealing.Set to one of the following values:
  • 0 - Reveal to the right; originate from the left side of the frame.
  • 1 - Reveal to the left; originate from the right side of the frame.
  • 2 - Reveal upward; originate from the bottom of the frame.
  • 3 - Reveal downward; originate from the top of the frame.
Composition fEffectPara2 Set to one of the following values:
  • 0 - Specifies normal composition, in which the previous image is the background, and the current image is the foreground.
  • 1 - Specifies reversed composition, in which the current image is the background image, and the previous image is the foreground

Requirements

Requirement Value
Header
Wmsdkidl.h

See also

Video Image Transitions