The mouse button was pressed inside the Slider at the location passed in to x,y. Returns a Boolean.

Syntax
result = MouseDown( x, y )

Parameters
x	Integer
y	Integer

Return Value
Result	Boolean

Notes

Return True if you are going to handle the MouseDown. The coordinates x and y are local to the control. Point 0,0 is the top-left corner of the entire control (to the left of the label and above the box that is drawn).