Tk_MainWindow, Tk_GetNumMainWindows — functions for querying main window information
A main window is a special kind of toplevel window used as the
outermost window in an application.
- Tcl_Interp *interp (in/out)
Interpreter associated with the 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 in interpreter interp's result.
Tk_GetNumMainWindows returns a count of the number of main
windows currently open in the current thread.
application, main window
Copyright © 1990 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.