The IDLitWindow::OnMouseMotion procedure method handles notification (from the native window device) that a mouse motion event has occurred, and passes along that notification to all observers in the list of window event observers.
Obj->[IDLitWindow::]OnMouseMotion, X, Y, Modifiers
A floating-point value representing the x-location (in device coordinates) of the mouse event.
A floating-point value representing the y-location (in device coordinates) of the mouse event.
An integer value of a bitwise mask indicating which modifier keys are active at the time the mouse button is pressed. If a bit is zero, the key is up; if the bit is set, the key is pressed. The following table describes the bits in this bitmask: