Tk_MainWindow - find the main window for an application
If interp is associated with a Tk application then Tk_MainWindow
returns the application's main window.
If there is no Tk application associated with interp then
Tk_MainWindow returns NULL and leaves an error message
application, main window
- Tcl_Interp *interp (in/out)
Interpreter associated with the application.
Copyright © 1990 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995-1997 Roger E. Critchlow Jr.