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Tk_MainWindow(3)	     Tk	Library	Procedures	      Tk_MainWindow(3)

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NAME
       Tk_MainWindow,  Tk_GetNumMainWindows - functions	for querying main win-
       dow information

SYNOPSIS
       #include	<tk.h>

       Tk_Window
       Tk_MainWindow(interp)

       int
       Tk_GetNumMainWindows()

ARGUMENTS
       Tcl_Interp *interp (in/out)	  Interpreter associated with the  ap-
					  plication.
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DESCRIPTION
       A  main	window is a special kind of toplevel window used as the	outer-
       most window in an application.

       If interp is associated with a Tk application  then  Tk_MainWindow  re-
       turns  the application's	main window. If	there is no Tk application as-
       sociated	with interp then Tk_MainWindow returns NULL and	leaves an  er-
       ror message in interpreter interp's result.

       Tk_GetNumMainWindows returns a count of the number of main windows cur-
       rently open in the current thread.

KEYWORDS
       application, main window

Tk				      7.0		      Tk_MainWindow(3)

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