/* * 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 1.1.4.5 1999/03/10 07:13:52 stanton Exp $ */ #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #include #include #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 void WishPanic _ANSI_ARGS_(TCL_VARARGS(char *,format)); #ifdef TK_TEST extern int Tktest_Init(Tcl_Interp *interp); #endif /* TK_TEST */ #ifdef TCL_TEST extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp)); extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp)); #endif /* TCL_TEST */ static BOOL consoleRequired = TRUE; /* *---------------------------------------------------------------------- * * 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; Tcl_SetPanicProc(WishPanic); /* * Set up the default locale to be standard "C" locale so parsing * is performed correctly. */ setlocale(LC_ALL, "C"); setargv(&argc, &argv); /* * Increase the application queue size from default value of 8. * At the default value, cross application SendMessage of WM_KILLFOCUS * will fail because the handler will not be able to do a PostMessage! * This is only needed for Windows 3.x, since NT dynamically expands * the queue. */ SetMessageQueue(64); /* * Create the console channels and install them as the standard * channels. All I/O will be discarded until TkConsoleInit is * called to attach the console to a text widget. */ consoleRequired = TRUE; Tk_Main(argc, argv, Tcl_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 (TkConsoleInit(interp) == TCL_ERROR) { goto error; } } #ifdef TCL_TEST if (Tcltest_Init(interp) == TCL_ERROR) { return TCL_ERROR; } Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init, (Tcl_PackageInitProc *) NULL); if (TclObjTest_Init(interp) == TCL_ERROR) { return TCL_ERROR; } #endif /* TCL_TEST */ #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: WishPanic(Tcl_GetStringResult(interp)); return TCL_ERROR; } /* *---------------------------------------------------------------------- * * WishPanic -- * * Display a message and exit. * * Results: * None. * * Side effects: * Exits the program. * *---------------------------------------------------------------------- */ void WishPanic TCL_VARARGS_DEF(char *,arg1) { va_list argList; char buf[1024]; char *format; format = TCL_VARARGS_START(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 != '\0'; p++) { if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ size++; while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */ p++; } if (*p == '\0') { 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 == '\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; } /* *---------------------------------------------------------------------- * * 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"); /* * Increase the application queue size from default value of 8. * At the default value, cross application SendMessage of WM_KILLFOCUS * will fail because the handler will not be able to do a PostMessage! * This is only needed for Windows 3.x, since NT dynamically expands * the queue. */ SetMessageQueue(64); /* * Create the console channels and install them as the standard * channels. All I/O will be discarded until TkConsoleInit is * called to attach the console to a text widget. */ consoleRequired = FALSE; Tk_Main(argc, argv, Tcl_AppInit); return 0; }