NAME

       Tk_MainWindow - find the main window for an application

SYNOPSIS

       #include <tk.h>

       Tk_Window
       Tk_MainWindow(interp)

ARGUMENTS

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

       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.

KEYWORDS

       application, main window