Import Tk 8.5.15 (as of svn r89086)
This commit is contained in:
Zachary Ware
332
win/winMain.c
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332
win/winMain.c
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/*
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* winMain.c --
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*
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* Main entry point for wish and other Tk-based applications.
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*
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* Copyright (c) 1995-1997 Sun Microsystems, Inc.
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* Copyright (c) 1998-1999 by Scriptics Corporation.
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*
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* See the file "license.terms" for information on usage and redistribution of
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* this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*/
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#include "tkInt.h"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#undef WIN32_LEAN_AND_MEAN
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#include <locale.h>
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/*
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* The following declarations refer to internal Tk routines. These interfaces
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* are available for use, but are not supported.
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*/
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#ifdef TK_TEST
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extern Tcl_PackageInitProc Tktest_Init;
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#endif /* TK_TEST */
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#if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES
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extern Tcl_PackageInitProc Registry_Init;
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extern Tcl_PackageInitProc Dde_Init;
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extern Tcl_PackageInitProc Dde_SafeInit;
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#endif
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/*
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* Forward declarations for procedures defined later in this file:
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*/
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static void WishPanic(CONST char *format, ...);
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static BOOL consoleRequired = TRUE;
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/*
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* The following #if block allows you to change the AppInit function by using
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* a #define of TCL_LOCAL_APPINIT instead of rewriting this entire file. The
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* #if checks for that #define and uses Tcl_AppInit if it doesn't exist.
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*/
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#ifndef TK_LOCAL_APPINIT
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#define TK_LOCAL_APPINIT Tcl_AppInit
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#endif
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extern int TK_LOCAL_APPINIT(Tcl_Interp *interp);
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/*
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* The following #if block allows you to change how Tcl finds the startup
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* script, prime the library or encoding paths, fiddle with the argv, etc.,
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* without needing to rewrite Tk_Main()
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*/
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#ifdef TK_LOCAL_MAIN_HOOK
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extern int TK_LOCAL_MAIN_HOOK(int *argc, char ***argv);
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#endif
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/*
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*----------------------------------------------------------------------
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*
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* WinMain --
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*
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* Main entry point from Windows.
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*
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* Results:
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* Returns false if initialization fails, otherwise it never returns.
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*
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* Side effects:
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* Just about anything, since from here we call arbitrary Tcl code.
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*
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*----------------------------------------------------------------------
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*/
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int APIENTRY
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WinMain(
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HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPSTR lpszCmdLine,
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int nCmdShow)
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{
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char **argv;
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int argc;
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char *p;
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Tcl_SetPanicProc(WishPanic);
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/*
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* Create the console channels and install them as the standard channels.
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* All I/O will be discarded until Tk_CreateConsoleWindow is called to
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* attach the console to a text widget.
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*/
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consoleRequired = TRUE;
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/*
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* Set up the default locale to be standard "C" locale so parsing is
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* performed correctly.
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*/
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setlocale(LC_ALL, "C");
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/*
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* Get our args from the c-runtime. Ignore lpszCmdLine.
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*/
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argc = __argc;
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argv = __argv;
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/*
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* Forward slashes substituted for backslashes.
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*/
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for (p = argv[0]; *p != '\0'; p++) {
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if (*p == '\\') {
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*p = '/';
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}
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}
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#ifdef TK_LOCAL_MAIN_HOOK
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TK_LOCAL_MAIN_HOOK(&argc, &argv);
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#endif
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Tk_Main(argc, argv, TK_LOCAL_APPINIT);
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return 1;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tcl_AppInit --
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*
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* This procedure performs application-specific initialization. Most
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* applications, especially those that incorporate additional packages,
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* will have their own version of this procedure.
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*
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* Results:
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* Returns a standard Tcl completion code, and leaves an error message in
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* the interp's result if an error occurs.
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*
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* Side effects:
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* Depends on the startup script.
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*
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*----------------------------------------------------------------------
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*/
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int
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Tcl_AppInit(
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Tcl_Interp *interp) /* Interpreter for application. */
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{
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#define TK_MAX_WARN_LEN 1024
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WCHAR msgString[TK_MAX_WARN_LEN + 5];
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if (Tcl_Init(interp) == TCL_ERROR) {
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goto error;
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}
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if (Tk_Init(interp) == TCL_ERROR) {
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goto error;
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}
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Tcl_StaticPackage(interp, "Tk", Tk_Init, Tk_SafeInit);
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/*
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* Initialize the console only if we are running as an interactive
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* application.
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*/
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if (consoleRequired) {
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if (Tk_CreateConsoleWindow(interp) == TCL_ERROR) {
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goto error;
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}
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}
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#if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES
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if (Registry_Init(interp) == TCL_ERROR) {
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goto error;
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}
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Tcl_StaticPackage(interp, "registry", Registry_Init, NULL);
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if (Dde_Init(interp) == TCL_ERROR) {
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goto error;
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}
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Tcl_StaticPackage(interp, "dde", Dde_Init, NULL);
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#endif
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#ifdef TK_TEST
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if (Tktest_Init(interp) == TCL_ERROR) {
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goto error;
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}
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Tcl_StaticPackage(interp, "Tktest", Tktest_Init, NULL);
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#endif /* TK_TEST */
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/*
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* Call the init procedures for included packages. Each call should look
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* like this:
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*
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* if (Mod_Init(interp) == TCL_ERROR) {
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* return TCL_ERROR;
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* }
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*
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* where "Mod" is the name of the module. (Dynamically-loadable packages
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* should have the same entry-point name.)
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*/
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/*
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* Call Tcl_CreateCommand for application-specific commands, if they
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* weren't already created by the init procedures called above.
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*/
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/*
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* Specify a user-specific startup file to invoke if the application is
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* run interactively. Typically the startup file is "~/.apprc" where "app"
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* is the name of the application. If this line is deleted then no user-
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* specific startup file will be run under any conditions.
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*/
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Tcl_SetVar(interp, "tcl_rcFileName", "~/wishrc.tcl", TCL_GLOBAL_ONLY);
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return TCL_OK;
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error:
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MultiByteToWideChar(CP_UTF8, 0, Tcl_GetStringResult(interp), -1,
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msgString, TK_MAX_WARN_LEN);
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/*
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* Truncate MessageBox string if it is too long to not overflow the screen
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* and cause possible oversized window error.
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*/
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memcpy(msgString + TK_MAX_WARN_LEN, L" ...", 5 * sizeof(WCHAR));
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MessageBeep(MB_ICONEXCLAMATION);
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MessageBoxW(NULL, msgString, L"Error in Wish",
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MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND);
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ExitProcess(1);
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/*
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* We won't reach this, but we need the return.
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*/
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return TCL_ERROR;
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}
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/*
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*----------------------------------------------------------------------
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*
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* WishPanic --
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*
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* Display a message and exit.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Exits the program.
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*
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*----------------------------------------------------------------------
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*/
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void
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WishPanic(
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CONST char *format, ...)
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{
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va_list argList;
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char buf[TK_MAX_WARN_LEN];
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WCHAR msgString[TK_MAX_WARN_LEN + 5];
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va_start(argList, format);
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vsprintf(buf, format, argList);
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MultiByteToWideChar(CP_UTF8, 0, buf, -1, msgString, TK_MAX_WARN_LEN);
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/*
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* Truncate MessageBox string if it is too long to not overflow the screen
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* and cause possible oversized window error.
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*/
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memcpy(msgString + TK_MAX_WARN_LEN, L" ...", 5 * sizeof(WCHAR));
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MessageBeep(MB_ICONEXCLAMATION);
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MessageBoxW(NULL, msgString, L"Fatal Error in Wish",
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MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND);
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#ifdef _MSC_VER
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DebugBreak();
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#endif
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ExitProcess(1);
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}
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#if defined(TK_TEST)
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/*
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*----------------------------------------------------------------------
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*
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* main --
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*
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* Main entry point from the console.
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*
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* Results:
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* None: Tk_Main never returns here, so this procedure never returns
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* either.
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*
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* Side effects:
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* Whatever the applications does.
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*
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*----------------------------------------------------------------------
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*/
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int
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main(
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int argc,
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char **argv)
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{
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Tcl_SetPanicProc(WishPanic);
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/*
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* Set up the default locale to be standard "C" locale so parsing is
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* performed correctly.
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*/
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setlocale(LC_ALL, "C");
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/*
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* Console emulation widget not required as this entry is from the
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* console subsystem, thus stdin,out,err already have end-points.
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*/
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consoleRequired = FALSE;
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Tk_Main(argc, argv, Tcl_AppInit);
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return 0;
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}
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#endif /* TK_TEST */
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/*
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* Local Variables:
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* mode: c
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* c-basic-offset: 4
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* fill-column: 78
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* End:
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*/
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