GRID.IsWindow

nStatus = GRID.IsWindow( BYVAL nControl AS INTEGER,

                        [BYVAL rWait    AS REAL=0] ) AS INTEGER

Returns the status of the window containing the control.  If the rWait parameter is supplied and larger than 0, then the current interpreter/program is suspended for rWait seconds. 

Currently the return status can be either

0 = Window Closed

1 = Window Open

Example:

DIM nControl AS INTEGER

' Create the Grid Control

nControl = GRID.Create( "Graph", WS_VISIBLE, 0, 0, 320, 240, NULL, 1 )

' Wait until window has been closed

DO

  IF NOT GRID.IsWindow( nControl, 0.1 ) THEN EXIT DO

ENDDO

' Need to close down the control as well

GRID.Close( nControl )