Retrieves the position of the mouse pointer at the time a file was dropped during a drag-and-drop operation
#include <WinAPISysWin.au3>
_WinAPI_DragQueryPoint ( $hDrop )
| $hDrop | Handle of the drop structure that describes the dropped file. This parameter is passed to WM_DROPFILES message with WPARAM parameter. |
| Success: | $tagPOINT structure that contains the coordinates of the mouse pointer at the time the file was dropped. |
| Failure: | Sets the @error flag to non-zero. |
Search DragQueryPoint in MSDN Library.