PDL::Graphics::TriD::ButtonControl - default event handler subroutines

new()
Bless an oject into the class ButtonControl, expects the associated Window object to be supplied as an argument. The ButtonControl class is a base class which all TriD event controllers should inherit from. By itself it does not do much. It defines ButtonPressed and ButtonRelease functions which are expected by the Event loop.

mouse_moved

ButtonRelease

ButtonPressed
Activates the viewport the mouse is inside when pressed

set_wh
Define the width and Height of the window for button control