Copyright (c) 1994 The Regents of the University of California.
Copyright (c) 1994-19967Sun Microsystems, Inc.

See the file "license.terms" for information on usage and redistribution
of this file, and for a DISCLAIMER OF ALL WARRANTIES.

SCCS: @(#) SetAppName.3 1.11 97/01/29 08:50:09

.so man.macros S Tk_SetAppName - Set the name of an application for ``send'' commands

#include <tk.h>
char *
Tk_SetAppName(tkwin, name)
 ARGUMENTS
.AS Tk_Window parent
.AP Tk_Window tkwin in
Token for window in application. Used only to select a particular
application.
.AP char *name in
Name under which to register the application.
E 
 DESCRIPTION

Tk_SetAppName associates a name with a given application and
records that association on the display containing with the application's
main window.
After this procedure has been invoked, other applications on the
display will be able to use the send command to invoke operations
in the application.
If name is already in use by some other application on the
display, then a new name will be generated by appending
`` #2'' to name; if this name is also in use,
the number will be incremented until an unused name is found.
The return value from the procedure is a pointer to the name actually
used.

If the application already has a name when Tk_SetAppName is
called, then the new name replaces the old name.

Tk_SetAppName also adds a send command to the application's
interpreter, which can be used to send commands from this application
to others on any of the displays where the application has windows.

The application's name registration persists until the interpreter is
deleted or the send command is deleted from interp, at which
point the name is automatically unregistered and the application
becomes inaccessible via send.
The application can be made accessible again by calling Tk_SetAppName.

Tk_SetAppName is called automatically by Tk_Init,
so applications don't normally need to call it explicitly.

The command tk appname provides Tcl-level access to the
functionality of Tk_SetAppName.

 KEYWORDS
application, name, register, send command