/* * winMain.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. * * RCS: @(#) $Id: winMain.c,v 1.34 2010/10/11 21:50:46 nijtmans Exp $ */ #ifndef _MSC_VER /* On mingw and cygwin this doesn't work yet */ # undef UNICODE # undef _UNICODE #endif #include "tk.h" #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #include #include #include #ifdef TK_TEST extern Tcl_PackageInitProc Tktest_Init; #endif /* TK_TEST */ #if defined(__CYGWIN__) static void setargv(int *argcPtr, TCHAR ***argvPtr); #endif /* __CYGWIN__ */ /* * Forward declarations for procedures defined later in this file: */ static void WishPanic(const char *format, ...); static BOOL consoleRequired = TRUE; /* * 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 extern int TK_LOCAL_APPINIT(Tcl_Interp *interp); /* * 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 extern int TK_LOCAL_MAIN_HOOK(int *argc, TCHAR ***argv); #endif /* *---------------------------------------------------------------------- * * WinMain -- * * Main entry point from Windows. * * Results: * Returns false if initialization fails, otherwise it never returns. * * Side effects: * Just about anything, since from here we call arbitrary Tcl code. * *---------------------------------------------------------------------- */ int APIENTRY _tWinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpszCmdLine, int nCmdShow) { TCHAR **argv; int argc; TCHAR *p; (Tcl_SetPanicProc)(WishPanic); /* * Create the console channels and install them as the standard channels. * All I/O will be discarded until Tk_CreateConsoleWindow is called to * attach the console to a text widget. */ consoleRequired = TRUE; /* * Set up the default locale to be standard "C" locale so parsing is * performed correctly. */ setlocale(LC_ALL, "C"); /* * Get our args from the c-runtime. Ignore lpszCmdLine. */ #if defined(__CYGWIN__) setargv(&argc, &argv); #else argc = __argc; argv = __targv; #endif /* * Forward slashes substituted for backslashes. */ for (p = argv[0]; *p != TEXT('\0'); p++) { if (*p == TEXT('\\')) { *p = TEXT('/'); } } #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) { goto error; } if (Tk_Init(interp) == TCL_ERROR) { goto error; } Tcl_StaticPackage(interp, "Tk", Tk_Init, Tk_SafeInit); /* * Initialize the console only if we are running as an interactive * application. */ if (consoleRequired) { if (Tk_CreateConsoleWindow(interp) == TCL_ERROR) { goto error; } } #if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES { extern Tcl_PackageInitProc Registry_Init; extern Tcl_PackageInitProc Dde_Init; extern Tcl_PackageInitProc Dde_SafeInit; if (Registry_Init(interp) == TCL_ERROR) { goto error; } Tcl_StaticPackage(interp, "registry", Registry_Init, NULL); if (Dde_Init(interp) == TCL_ERROR) { goto error; } Tcl_StaticPackage(interp, "dde", Dde_Init, Dde_SafeInit); } #endif #ifdef TK_TEST if (Tktest_Init(interp) == TCL_ERROR) { goto 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_CreateCommand 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_SetVar)(interp, "tcl_rcFileName", "~/wishrc.tcl", TCL_GLOBAL_ONLY); return TCL_OK; error: MessageBeep(MB_ICONEXCLAMATION); MessageBoxA(NULL, (Tcl_GetStringResult)(interp), "Error in Wish", MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND); ExitProcess(1); /* * We won't reach this, but we need the return. */ return TCL_ERROR; } /* *---------------------------------------------------------------------- * * WishPanic -- * * Display a message and exit. * * Results: * None. * * Side effects: * Exits the program. * *---------------------------------------------------------------------- */ void WishPanic( const char *format, ...) { va_list argList; char buf[1024]; va_start(argList, format); vsprintf(buf, format, argList); MessageBeep(MB_ICONEXCLAMATION); MessageBoxA(NULL, buf, "Fatal Error in Wish", MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND); #ifdef _MSC_VER DebugBreak(); #endif ExitProcess(1); } #if !defined(__GNUC__) || defined(TK_TEST) /* *---------------------------------------------------------------------- * * main -- * * Main entry point from the console. * * Results: * None: Tk_Main never returns here, so this procedure never returns * either. * * Side effects: * Whatever the applications does. * *---------------------------------------------------------------------- */ int _tmain( int argc, TCHAR **argv) { (Tcl_SetPanicProc)(WishPanic); /* * Set up the default locale to be standard "C" locale so parsing is * performed correctly. */ setlocale(LC_ALL, "C"); /* * Console emulation widget not required as this entry is from the * console subsystem, thus stdin,out,err already have end-points. */ consoleRequired = FALSE; #ifdef TK_LOCAL_MAIN_HOOK TK_LOCAL_MAIN_HOOK(&argc, &argv); #endif Tk_Main(argc, argv, Tcl_AppInit); return 0; } #endif /* !__GNUC__ || TK_TEST */ /* *------------------------------------------------------------------------- * * setargv -- * * Parse the Windows command line string into argc/argv. Done here * because we don't trust the builtin argument parser in crt0. Windows * applications are responsible for breaking their command line into * arguments. * * 2N backslashes + quote -> N backslashes + begin quoted string * 2N + 1 backslashes + quote -> literal * N backslashes + non-quote -> literal * quote + quote in a quoted string -> single quote * quote + quote not in quoted string -> empty string * quote -> begin quoted string * * Results: * Fills argcPtr with the number of arguments and argvPtr with the array * of arguments. * * Side effects: * Memory allocated. * *-------------------------------------------------------------------------- */ #if defined(__CYGWIN__) static void setargv( int *argcPtr, /* Filled with number of argument strings. */ TCHAR ***argvPtr) /* Filled with argument strings (malloc'd). */ { TCHAR *cmdLine, *p, *arg, *argSpace; TCHAR **argv; int argc, size, inquote, copy, slashes; cmdLine = GetCommandLine(); /* * Precompute an overly pessimistic guess at the number of arguments in * the command line by counting non-space spans. */ size = 2; for (p = cmdLine; *p != TEXT('\0'); p++) { if ((*p == TEXT(' ')) || (*p == TEXT('\t'))) { /* INTL: ISO space. */ size++; while ((*p == TEXT(' ')) || (*p == TEXT('\t'))) { /* INTL: ISO space. */ p++; } if (*p == TEXT('\0')) { break; } } } argSpace = (TCHAR *) ckalloc( (unsigned) (size * sizeof(TCHAR *) + (_tcslen(cmdLine) * sizeof(TCHAR)) + 1)); argv = (TCHAR **) argSpace; argSpace += size * sizeof(TCHAR *); size--; p = cmdLine; for (argc = 0; argc < size; argc++) { argv[argc] = arg = argSpace; while ((*p == TEXT(' ')) || (*p == TEXT('\t'))) { /* INTL: ISO space. */ p++; } if (*p == TEXT('\0')) { break; } inquote = 0; slashes = 0; while (1) { copy = 1; while (*p == TEXT('\\')) { slashes++; p++; } if (*p == TEXT('"')) { if ((slashes & 1) == 0) { copy = 0; if ((inquote) && (p[1] == TEXT('"'))) { p++; copy = 1; } else { inquote = !inquote; } } slashes >>= 1; } while (slashes) { *arg = TEXT('\\'); arg++; slashes--; } if ((*p == TEXT('\0')) || (!inquote && ((*p == TEXT(' ')) || (*p == TEXT('\t'))))) { /* INTL: ISO space. */ break; } if (copy != 0) { *arg = *p; arg++; } p++; } *arg = TEXT('\0'); argSpace = arg + 1; } argv[argc] = NULL; *argcPtr = argc; *argvPtr = argv; } #endif /* __CYGWIN__ */ /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */