winMain.c
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上传日期:2013-10-12
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文件大小:6k
- /*
- * winMain.c --
- *
- * Main entry point for wish and other Tk-based applications.
- *
- * Copyright (c) 1995 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * SCCS: @(#) winMain.c 1.33 96/12/17 12:56:14
- *
- * Revision 1.1 97/09/10 14:15:00 Geza Groma
- * WinMain() calls main() to execute Togl example programs
- */
- #include <tk.h>
- #define WIN32_LEAN_AND_MEAN
- #include <windows.h>
- #undef WIN32_LEAN_AND_MEAN
- #include <malloc.h>
- #include <locale.h>
- /*
- * The following declarations refer to internal Tk routines. These
- * interfaces are available for use, but are not supported.
- */
- EXTERN void TkConsoleCreate(void);
- EXTERN int TkConsoleInit(Tcl_Interp *interp);
- EXTERN int main( int argc, char *argv[] );
- /*
- * 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));
- /*
- *----------------------------------------------------------------------
- *
- * 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, *p, **arg;
- int argc;
- char buffer[MAX_PATH];
- 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.
- *
- * Delete the following statement if you do not need console.
- */
- TkConsoleCreate();
- /*
- * C runtime i/o (printf) still goes to the Windows console, not the Tk one.
- * so we need one of those too -- this is ugly --
- * and I don't even know how to reinitialize cout to work.
- * Consider this a "for now" hack.
- */
- AllocConsole();
- freopen ("CON", "w", stdout);
- freopen ("CON", "w", stderr);
- 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;
- // magi -- all of scanalyze likes / better than , so replace all of argv
- for (arg = argv; arg < argv + argc; arg++)
- {
- for (p = *arg; *p != ' '; p++) {
- if (*p == '\') {
- *p = '/';
- }
- }
- }
- return main(argc, argv);
- }
- /*
- *----------------------------------------------------------------------
- *
- * 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 Togl",
- MB_ICONSTOP | MB_OK | MB_TASKMODAL | MB_SETFOREGROUND);
- #ifdef _MSC_VER
- _asm {
- int 3
- }
- #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();
- /*
- * 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 (isspace(*p)) {
- size++;
- while (isspace(*p)) {
- p++;
- }
- if (*p == ' ') {
- 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 (isspace(*p)) {
- 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 && isspace(*p))) {
- break;
- }
- if (copy != 0) {
- *arg = *p;
- arg++;
- }
- p++;
- }
- *arg = ' ';
- argSpace = arg + 1;
- }
- argv[argc] = NULL;
- *argcPtr = argc;
- *argvPtr = argv;
- }