WindowFromPoint( nCol, nRow )-> <hWnd>
------------------------------------------------------------------------------


 PARAMETER:

  <nCol>         The pixel col that identifies the target window

  <nRow>         The pixel row that identifies the target window


 RETURNS:

  <hWnd> is the handle of the window that contains the specified point


 DESCRIPTION:

  WindowFromPoint() retrieves the handle of the window that contains the
  specified point. It does not retrieve the handle of a hidden, disabled, or
  transparent window, even if the point is within the window.

 EXAMPLE:


    +--------------------------------------------------------------+
    |  /* Function ShowHelp */                                     |
    |   FUNCTION ShowHelp( oBtn, nRow, nCol )                      |
    |      LOCAL aPoint   := { nRow, nCol }                        |
    |      LOCAL hCtl, nID, cMsg                                   |
    |                                                              |
    |      ClientToScreen( oBtn:hWnd, aPoint )                     |
    |      hCtl := WindowFromPoint( aPoint[ 2 ], aPoint[ 1 ] )     |
    |      nID  := GetWindowWord( hCtl, -12 )                      |
    +--------------------------------------------------------------+


 SOURCE:

  SOURCE\WINAPI\WNDPT.C