/* * winMain.c -- * * Main entry point for wish and other Tk-based applications. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright (c) 1998-1999 by 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 1.26.2.2 2010/11/24 15:15:25 nijtmans Exp $ */ #include "tkInt.h" #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #include /* * The following declarations refer to internal Tk routines. These interfaces * are available for use, but are not supported. */ #ifdef TK_TEST extern Tcl_PackageInitProc Tktest_Init; #endif /* TK_TEST */ #if defined(STATIC_BUILD) && TCL_USE_STATIC_PACKAGES extern Tcl_PackageInitProc Registry_Init; extern Tcl_PackageInitProc Dde_Init; extern Tcl_PackageInitProc Dde_SafeInit; #endif /* * Forward declarations for procedures defined later in this file: */ static void WishPanic(CONST char *format, ...); #if defined(__CYGWIN__) static void setargv(int *argcPtr, char ***argvPtr); #endif /* __CYGWIN__ */ 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, char ***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 WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow) { char **argv; int argc; char *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 = __argv; #endif /* * Forward slashes substituted for backslashes. */ for (p = argv[0]; *p != '\0'; p++) { if (*p == '\\') { *p = '/'; } } #ifdef TK_LOCAL_MAIN_HOOK TK_LOCAL_MAIN_HOOK(&argc, &argv); #endif Tk_Main(argc, argv, TK_LOCAL_APPINIT); return 1; } /* *---------------------------------------------------------------------- * * 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. */ { #define TK_MAX_WARN_LEN 1024 WCHAR msgString[TK_MAX_WARN_LEN + 5]; 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 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, NULL); #endif #ifdef TK_TEST if (Tktest_Init(interp) == TCL_ERROR) { goto error; } Tcl_StaticPackage(interp, "Tktest", Tktest_Init, NULL); #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: MultiByteToWideChar(CP_UTF8, 0, Tcl_GetStringResult(interp), -1, msgString, TK_MAX_WARN_LEN); /* * Truncate MessageBox string if it is too long to not overflow the screen * and cause possible oversized window error. */ memcpy(msgString + TK_MAX_WARN_LEN, L" ...", 5 * sizeof(WCHAR)); MessageBeep(MB_ICONEXCLAMATION); MessageBoxW(NULL, msgString, L"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[TK_MAX_WARN_LEN]; WCHAR msgString[TK_MAX_WARN_LEN + 5]; va_start(argList, format); vsprintf(buf, format, argList); MultiByteToWideChar(CP_UTF8, 0, buf, -1, msgString, TK_MAX_WARN_LEN); /* * Truncate MessageBox string if it is too long to not overflow the screen * and cause possible oversized window error. */ memcpy(msgString + TK_MAX_WARN_LEN, L" ...", 5 * sizeof(WCHAR)); MessageBeep(MB_ICONEXCLAMATION); MessageBoxW(NULL, msgString, L"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 main( int argc, char **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; 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. */ char ***argvPtr) /* Filled with argument strings (malloc'd). */ { char *cmdLine, *p, *arg, *argSpace; char **argv; int argc, size, inquote, copy, slashes; cmdLine = GetCommandLine(); /* INTL: BUG */ /* * 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 != '\0'; p++) { if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ size++; while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ p++; } if (*p == '\0') { break; } } } argSpace = (char *) ckalloc( (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1)); argv = (char **) argSpace; argSpace += size * sizeof(char *); size--; p = cmdLine; for (argc = 0; argc < size; argc++) { argv[argc] = arg = argSpace; while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ p++; } if (*p == '\0') { break; } inquote = 0; slashes = 0; while (1) { copy = 1; while (*p == '\\') { slashes++; p++; } if (*p == '"') { if ((slashes & 1) == 0) { copy = 0; if ((inquote) && (p[1] == '"')) { p++; copy = 1; } else { inquote = !inquote; } } slashes >>= 1; } while (slashes) { *arg = '\\'; arg++; slashes--; } if ((*p == '\0') || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */ break; } if (copy != 0) { *arg = *p; arg++; } p++; } *arg = '\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: */