Query the current vertical position of the mouse cursor.
Source position: mouseh.inc line 85
function GetMouseY: Word;  | 
GetMouseY returns the current Y position of the mouse. Y is measured in characters, starting at 0 for the top of the screen.
For an example, see GetMouseX
None.
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Get the state of the mouse buttons.  | 
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Get next mouse event from the queue.  | 
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Query the current horizontal position of the mouse cursor.  |