I have an control (container or pageframe) that contains other controls. Over this control is a transparent shape that intercepts all mouse clicks (user will not directly mouse-click on the underlying controls). I want to be able to pass the mouse click to an underlying control when the user presses the Ctrl-Mouse-Click. I know how to test for the control key pressed in the mouse events -- the question is how to determine the object that is underneath the transparent shape at the mouse coordinates? Thank you.