Returns the current mouse Y position
#include <WinAPIMisc.au3>
_WinAPI_GetMousePosY ( [$bToClient = False [, $hWnd = 0]] )
| $bToClient | [optional] If True, the coordinates will be converted to client coordinates | 
| $hWnd | [optional] Window handle used to convert coordinates if $bToClient is True | 
| Success: | the mouse Y position. | 
| Failure: | sets the @error flag to non-zero. | 
This function takes into account the current MouseCoordMode setting when obtaining the mouse position. It
will also convert screen to client coordinates based on the parameters passed.
#include <MsgBoxConstants.au3>
#include <WinAPIMisc.au3>
Example()
Func Example()
    Local $hWnd = GUICreate("test")
    Local $iX = _WinAPI_GetMousePosX()
    Local $iX2 = _WinAPI_GetMousePosX(True, $hWnd)
    Local $iY = _WinAPI_GetMousePosY()
    Local $iY2 = _WinAPI_GetMousePosY(True, $hWnd)
    MsgBox($MB_SYSTEMMODAL, "Mouse Pos", "X = " & $iX & @CRLF & "Y = " & $iY & @CRLF & @CRLF & _
            "Client" & @CRLF & "X = " & $iX2 & @CRLF & "Y = " & $iY2)
EndFunc   ;==>Example