WMT_VIDEOIMAGE_TRANSITION_WHEEL

The wheel transition reveals the new image by rotating four lines around a common pivot point, like the spokes of a wheel.

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
Center X fEffectPara0 X-coordinate, relative to the video frame, of the center of the wheel effect.
Center Y fEffectPara1 Y-coordinate, relative to the video frame, of the center of the wheel effect.
Angle fEffectPara2 Angle of rotation, in degrees, of the spokes of the wheel effect. A value of 0.0 indicates the old image without any of the new image revealed. A value of 90.0 indicates the new image fully revealed.Movement from 0.0 to 90.0 appears as clockwise rotation of the spokes.
Composition fEffectPara3 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

Header
Wmsdkidl.h

See also

Video Image Transitions