ID2D1BoundsAdjustmentTransform interface (d2d1effectauthor.h)
A support transform for effects to modify the output rectangle of the previous effect or bitmap.
The ID2D1BoundsAdjustmentTransform interface inherits from the ID2D1TransformNode interface.
The ID2D1BoundsAdjustmentTransform interface has these methods.
|ID2D1BoundsAdjustmentTransform::GetOutputBounds||Returns the output rectangle of the support transform.|
|ID2D1BoundsAdjustmentTransform::SetOutputBounds||This sets the output bounds for the support transform.|
The support transform can be used for two different reasons.
To indicate that a region of its input image is already transparent black. The expanded area will be treated as transparent black.
This can increase efficiency for rendering bitmaps.
- To increase the size of the input image.