Drag & release; 2 custom mousepointers

Hi folks,

My app uses maps. I have made two icons to act as mouse pointers, one is an open hand the other is in a hand grabbing pose.
My hand.ico is displayed when hovering the map.

I'd like my grab.ico to display on mouse down, when dragging the oversized map image around the screen, like on Google maps.
I have set the map image "DragIcon" to the grab.ico I made, but that didn't change anything.

Is there a way to use two custom mouse pointers, perhaps change it in the map image's mouse events?

I have searched and read something about GiveFeedback but I don't understand.

Any help would be greatly appreciated. Cheers