SetParent( hWndChild, hWndParent )-> <hWndOldParent>
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 PARAMETER:

  <hWndChild>   Is the handle that identifies the child window

  <hWndParent>  Identifies the new parent window


 RETURNS:

  <hWndOldParent> is the handle of the old parent window


 DESCRIPTION:

  The SetParent function changes the parent window of the given child window.
  If the window identified by <hwndChild> is visible, Windows performs the
  appropriate redrawing and repainting. This function is used to manage a 
  floating button bar, see SOURCE\CLASSES\BAR.PRG


 SOURCE:

  SOURCE\WINAPI\GETPAREN.C