Creates a modifiable deep copy of this DrawingGroup object and makes deep copies of its current values.
Assembly: PresentationCore (in PresentationCore.dll)
Use this method to produce modifiable copies of read-only Freezable objects. For convenience, this method shadows the inherited version with a strongly typed implementation.
This method does not copy resource references, data bindings, and animations, although it does copy their current values.
For more information, see Freezable.CloneCurrentValue.