NAME

       Tk_MainWindow, Tk_GetNumMainWindows - functions for querying main window information

SYNOPSIS

       #include <tk.h>

       Tk_Window
       Tk_MainWindow(interp)

       int
       Tk_GetNumMainWindows()

ARGUMENTS

       Tcl_Interp *interp (in/out)        Interpreter associated with the application.
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DESCRIPTION

       A main window is a special kind of toplevel window used as the outermost window in 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 in interp->result.

       Tk_GetNumMainWindows returns a count of the number of main windows currently open in the process.

KEYWORDS

       application, main window