winMain.c
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上传日期:2015-12-11
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- /*
- * 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 1.15.2.2 2003/12/12 00:42:10 davygrvy Exp $
- */
- #include <tk.h>
- #define WIN32_LEAN_AND_MEAN
- #include <windows.h>
- #undef WIN32_LEAN_AND_MEAN
- #include <malloc.h>
- #include <locale.h>
- #include "tkInt.h"
- /*
- * The following declarations refer to internal Tk routines. These
- * interfaces are available for use, but are not supported.
- */
- /*
- * Forward declarations for procedures defined later in this file:
- */
- static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
- static Tcl_PanicProc WishPanic;
- #ifdef TK_TEST
- extern int Tktest_Init(Tcl_Interp *interp);
- #endif /* TK_TEST */
- 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 _ANSI_ARGS_((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 _ANSI_ARGS_((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, hPrevInstance, lpszCmdLine, nCmdShow)
- HINSTANCE hInstance;
- HINSTANCE hPrevInstance;
- LPSTR lpszCmdLine;
- int nCmdShow;
- {
- char **argv;
- int argc;
- char buffer[MAX_PATH+1];
- 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");
- setargv(&argc, &argv);
- /*
- * Replace argv[0] with full pathname of executable, and forward
- * slashes substituted for backslashes.
- */
- GetModuleFileName(NULL, buffer, sizeof(buffer));
- argv[0] = buffer;
- for (p = buffer; *p != ' '; 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(interp)
- 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) && defined(TCL_USE_STATIC_PACKAGES)
- {
- extern Tcl_PackageInitProc Registry_Init;
- extern Tcl_PackageInitProc Dde_Init;
- if (Registry_Init(interp) == TCL_ERROR) {
- return TCL_ERROR;
- }
- Tcl_StaticPackage(interp, "registry", Registry_Init, NULL);
- if (Dde_Init(interp) == TCL_ERROR) {
- return TCL_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,
- (Tcl_PackageInitProc *) NULL);
- #endif /* TK_TEST */
- Tcl_SetVar(interp, "tcl_rcFileName", "~/wishrc.tcl", TCL_GLOBAL_ONLY);
- return TCL_OK;
- error:
- MessageBeep(MB_ICONEXCLAMATION);
- MessageBox(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 TCL_VARARGS_DEF(CONST char *,arg1)
- {
- va_list argList;
- char buf[1024];
- CONST char *format;
-
- format = TCL_VARARGS_START(CONST char *,arg1,argList);
- vsprintf(buf, format, argList);
- MessageBeep(MB_ICONEXCLAMATION);
- MessageBox(NULL, buf, "Fatal Error in Wish",
- MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND);
- #ifdef _MSC_VER
- DebugBreak();
- #endif
- ExitProcess(1);
- }
- /*
- *-------------------------------------------------------------------------
- *
- * 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.
- *
- *--------------------------------------------------------------------------
- */
- static void
- setargv(argcPtr, argvPtr)
- 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 != ' '; p++) {
- if ((*p == ' ') || (*p == 't')) { /* INTL: ISO space. */
- size++;
- while ((*p == ' ') || (*p == 't')) { /* INTL: ISO space. */
- p++;
- }
- if (*p == ' ') {
- break;
- }
- }
- }
- argSpace = (char *) Tcl_Alloc(
- (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 == ' ') {
- 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 == ' ')
- || (!inquote && ((*p == ' ') || (*p == 't')))) { /* INTL: ISO space. */
- break;
- }
- if (copy != 0) {
- *arg = *p;
- arg++;
- }
- p++;
- }
- *arg = ' ';
- argSpace = arg + 1;
- }
- argv[argc] = NULL;
- *argcPtr = argc;
- *argvPtr = argv;
- }
- #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");
- /*
- * 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 = FALSE;
- Tk_Main(argc, argv, Tcl_AppInit);
- return 0;
- }
- #endif /* !__GNUC__ || TK_TEST */