ClientToScreen( hWnd, aPoint )-> <nil>
------------------------------------------------------------------------------


 PARAMETER:

  <hWnd>        Is the handle that identifies the window whose client area
                is used for the conversion.

  <aPoint>      Is an array of two elements that holds the coordinates of
                a given point on the screen. This values are transformed 
                to screen coordinates and placed back into this Array again


 DESCRIPTION:

  The ClientToScreen function replaces the coordinates in the <aPoint> Array
  with the screen coordinates. The screen coordinates are relative to the
  upper-left corner of the screen. 


 EXAMPLE:


    +--------------------------------------------------------------+
    |  /* ClientToScreen sample */                                 |
    |   LOCAL ;                                                    |
    |      aPoint := { 100, 120 }                                  |
    |      ClientToScreen( oWnd:hWnd, aPoint )                     |
    |      ? aPoint[1]                                             |
    |      ? aPoint[2]                                             |
    +--------------------------------------------------------------+


 SOURCE:

  SOURCE\WINAPI\Clt2Scr.c