Tk_MainWindow(3) functions for querying main

Other Alias

Tk_GetNumMainWindows

SYNOPSIS

#include <tk.h>


Tk_Window
Tk_MainWindow(interp)

int
Tk_GetNumMainWindows()

ARGUMENTS

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

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

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