IAMVideoTransform Interface

4/8/2010

Implemented by applications to control video rotation and scaling parameters.

When to Implement

The IAMVideoTransform Interface should be used by any application that needs to control rotation and scaling on the device's video renderer.

The following table shows the methods that appear in the Vtable beneath the standard COM methods inherited from IUnknown.

Method	Description
IAMVideoTransform::SetDestinationRotation	Specifies the angle of rotation that should be applied to the target of the video renderer.
IAMVideoTransform::GetDestinationRotation	Retrieves the current angle of rotation.
IAMVideoTransform::SetScalingMode	Specifies the scaling mode that should be used by the video renderer.
IAMVideoTransform::GetScalingMode	Retrieves the scaling mode that is currently used.
IAMVideoTransform::GetRotationCaps	Retrieves the rotation capabilities of the current filter graph.
IAMVideoTransform::GetScalingModeCaps	Retrieves the scaling mode capabilities of the current filter graph.
IAMVideoTransform::GetScalingCaps	Retrieves the scaling capabilities of the current filter graph.