Viewing file:  tkAppInit.c (4.09 KB) -rw-r--r--
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/*
* tkAppInit.c --
*
* Provides a default version of the main program and Tcl_AppInit
* procedure for wish and other Tk-based applications.
*
* Copyright (c) 1993 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 1998-1999 Scriptics Corporation.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#undef BUILD_tk
#undef STATIC_BUILD
#include "tk.h"
#ifdef TK_TEST
extern Tcl_PackageInitProc Tktest_Init;
#endif /* TK_TEST */
/*
* The following #if block allows you to change the AppInit function by using
* a #define of TCL_LOCAL_APPINIT instead of rewriting this entire file. The
* #if checks for that #define and uses Tcl_AppInit if it doesn't exist.
*/
#ifndef TK_LOCAL_APPINIT
#define TK_LOCAL_APPINIT Tcl_AppInit
#endif
#ifndef MODULE_SCOPE
# define MODULE_SCOPE extern
#endif
MODULE_SCOPE int TK_LOCAL_APPINIT(Tcl_Interp *);
MODULE_SCOPE int main(int, char **);
/*
* The following #if block allows you to change how Tcl finds the startup
* script, prime the library or encoding paths, fiddle with the argv, etc.,
* without needing to rewrite Tk_Main()
*/
#ifdef TK_LOCAL_MAIN_HOOK
MODULE_SCOPE int TK_LOCAL_MAIN_HOOK(int *argc, char ***argv);
#endif
/* Make sure the stubbed variants of those are never used. */
#undef Tcl_ObjSetVar2
#undef Tcl_NewStringObj
/*
*----------------------------------------------------------------------
*
* main --
*
* This is the main program for the application.
*
* Results:
* None: Tk_Main never returns here, so this procedure never returns
* either.
*
* Side effects:
* Just about anything, since from here we call arbitrary Tcl code.
*
*----------------------------------------------------------------------
*/
int
main(
int argc, /* Number of command-line arguments. */
char **argv) /* Values of command-line arguments. */
{
#ifdef TK_LOCAL_MAIN_HOOK
TK_LOCAL_MAIN_HOOK(&argc, &argv);
#endif
Tk_Main(argc, argv, TK_LOCAL_APPINIT);
return 0; /* Needed only to prevent compiler warning. */
}
/*
*----------------------------------------------------------------------
*
* Tcl_AppInit --
*
* This procedure performs application-specific initialization. Most
* applications, especially those that incorporate additional packages,
* will have their own version of this procedure.
*
* Results:
* Returns a standard Tcl completion code, and leaves an error message in
* the interp's result if an error occurs.
*
* Side effects:
* Depends on the startup script.
*
*----------------------------------------------------------------------
*/
int
Tcl_AppInit(
Tcl_Interp *interp) /* Interpreter for application. */
{
if ((Tcl_Init)(interp) == TCL_ERROR) {
return TCL_ERROR;
}
if (Tk_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticPackage(interp, "Tk", Tk_Init, Tk_SafeInit);
#ifdef TK_TEST
if (Tktest_Init(interp) == TCL_ERROR) {
return TCL_ERROR;
}
Tcl_StaticPackage(interp, "Tktest", Tktest_Init, 0);
#endif /* TK_TEST */
/*
* Call the init procedures for included packages. Each call should look
* like this:
*
* if (Mod_Init(interp) == TCL_ERROR) {
* return TCL_ERROR;
* }
*
* where "Mod" is the name of the module. (Dynamically-loadable packages
* should have the same entry-point name.)
*/
/*
* Call Tcl_CreateObjCommand for application-specific commands, if they
* weren't already created by the init procedures called above.
*/
/*
* Specify a user-specific startup file to invoke if the application is
* run interactively. Typically the startup file is "~/.apprc" where "app"
* is the name of the application. If this line is deleted then no user-
* specific startup file will be run under any conditions.
*/
Tcl_ObjSetVar2(interp, Tcl_NewStringObj("tcl_rcFileName", -1), NULL,
Tcl_NewStringObj("~/.wishrc", -1), TCL_GLOBAL_ONLY);
return TCL_OK;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
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