MouRemovePtr can be issued by any process in the session. However, only one collision area at a time is active. Each call to MouRemovePtr has the effect of resetting the collision area to the location and area specified by the current call.

If the logical pointer position is outside of the collision area specified by the latest MouRemovePtr call, the pointer image is drawn.

The A MouDrawPtr call effectively cancels a MouRemovePtr call, allowing the pointer to be drawn anywhere on the screen until the next MouRemovePtr call is issued.