Fires before an image is being modified (before the start of an operation).
Namespace:
Aurigma.GraphicsMill
Assembly:
Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
Protected Event Changing As BitmapChangingEventHandler
protected event BitmapChangingEventHandler Changing
This event is fired only if you run the operations through build-in methods or properties. If you create external transform or codec and run it, this event will not fire (in this case you should use Starting event of the transform or codec you create).