Tk_MainWindow(3)

Tk_MainWindow(3)      Tk Library Procedures      Tk_MainWindow(3)

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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

Tk                      Last change: 7.0                        1