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 asso-
ciated 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 7.0 Tk_MainWindow(3)
