Don't know the answer - but at least your ControlClick syntax is currently incorrect and your code above can't work as expected:
Compare example #2:
Mode 1 (Position): Specify the X and Y coordinates relative to the target window's upper left corner. The X coordinate must precede the Y coordinate and there must be at least one space or tab between them. For example: X55 Y33.[...]
Compare example #2:
Clicks at a set of coordinates. Note the lack of a comma between X and Y.CODE:
ControlClick, x55 y77, Some Window Title
Statistics: Posted by gregster — Today, 14:48