regedit: Use message boxes by default for output.

programs/regedit/main.h

@@ -154,7 +154,7 @@ BOOL IsDefaultValue(HWND hwndLV, int i);
 
 /* regedit.c */
 void WINAPIV output_message(unsigned int id, ...);
-void WINAPIV error_exit(unsigned int id, ...);
+void WINAPIV error_exit(void);
 
 /* regproc.c */
 char *GetMultiByteString(const WCHAR *strW);

programs/regedit/regedit.c

@@ -28,74 +28,76 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
 
-static void output_writeconsole(const WCHAR *str, DWORD wlen)
+static BOOL silent;
+
+static void output_formatstring(BOOL with_help, UINT id, va_list va_args)
 {
-    DWORD count;
+    WCHAR buffer[4096];
+    WCHAR fmt[1536];
+    DWORD len;
+    LCID  current_lcid;
+
+    if (silent && with_help) return;
+
+    current_lcid = GetThreadLocale();
+    if (silent) /* force en-US not to have localized strings */
+        SetThreadLocale(MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT));
 
-    if (!WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), str, wlen, &count, NULL))
+    if (!LoadStringW(GetModuleHandleW(NULL), id, fmt, ARRAY_SIZE(fmt)))
     {
-        DWORD len;
-        char  *msgA;
-
-        /* WriteConsole() fails on Windows if its output is redirected. If this occurs,
-         * we should call WriteFile() with OEM code page.
-         */
-        len = WideCharToMultiByte(GetOEMCP(), 0, str, wlen, NULL, 0, NULL, NULL);
-        msgA = malloc(len);
-        if (!msgA) return;
-
-        WideCharToMultiByte(GetOEMCP(), 0, str, wlen, msgA, len, NULL, NULL);
-        WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), msgA, len, &count, FALSE);
-        free(msgA);
+        WINE_FIXME("LoadString failed with %ld\n", GetLastError());
+        if (silent) SetThreadLocale(current_lcid);
+        return;
     }
-}
 
-static void output_formatstring(const WCHAR *fmt, va_list va_args)
-{
-    WCHAR *str;
-    DWORD len;
-
-    len = FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER,
-                         fmt, 0, 0, (WCHAR *)&str, 0, &va_args);
+    len = FormatMessageW(FORMAT_MESSAGE_FROM_STRING,
+                         fmt, 0, 0, buffer, ARRAY_SIZE(buffer), &va_args);
     if (len == 0 && GetLastError() != ERROR_NO_WORK_DONE)
     {
         WINE_FIXME("Could not format string: le=%lu, fmt=%s\n", GetLastError(), wine_dbgstr_w(fmt));
+        if (silent) SetThreadLocale(current_lcid);
         return;
     }
-    output_writeconsole(str, len);
-    LocalFree(str);
+    if (with_help &&
+        !LoadStringW(GetModuleHandleW(NULL), STRING_HELP,
+                     &buffer[wcslen(buffer)], ARRAY_SIZE(buffer) - wcslen(buffer)))
+    {
+        WINE_FIXME("LoadString failed with %ld\n", GetLastError());
+        if (silent) SetThreadLocale(current_lcid);
+        return;
+    }
+    if (silent)
+    {
+        MESSAGE("%ls", buffer);
+        SetThreadLocale(current_lcid);
+    }
+    else
+        MessageBoxW(NULL, buffer, MAKEINTRESOURCEW(IDS_APP_TITLE), MB_OK | MB_ICONHAND);
 }
 
 void WINAPIV output_message(unsigned int id, ...)
 {
-    WCHAR fmt[1536];
     va_list va_args;
 
-    if (!LoadStringW(GetModuleHandleW(NULL), id, fmt, ARRAY_SIZE(fmt)))
-    {
-        WINE_FIXME("LoadString failed with %ld\n", GetLastError());
-        return;
-    }
     va_start(va_args, id);
-    output_formatstring(fmt, va_args);
+    output_formatstring(FALSE, id, va_args);
     va_end(va_args);
 }
 
-void WINAPIV error_exit(unsigned int id, ...)
+void WINAPIV error_exit(void)
+{
+    exit(0); /* regedit.exe always terminates with error code zero */
+}
+
+static void WINAPIV usage(unsigned int id, ...)
 {
-    WCHAR fmt[1536];
     va_list va_args;
 
-    if (!LoadStringW(GetModuleHandleW(NULL), id, fmt, ARRAY_SIZE(fmt)))
-    {
-        WINE_FIXME("LoadString failed with %lu\n", GetLastError());
-        return;
-    }
     va_start(va_args, id);
-    output_formatstring(fmt, va_args);
+    output_formatstring(TRUE, id, va_args);
     va_end(va_args);
 
-    exit(0); /* regedit.exe always terminates with error code zero */
+    error_exit();
 }
 
 typedef enum {
@@ -159,8 +161,8 @@ static void PerformRegAction(REGEDIT_ACTION action, WCHAR **argv, int *i)
             break;
         }
     default:
-        error_exit(STRING_UNHANDLED_ACTION);
-        break;
+        output_message(STRING_UNHANDLED_ACTION);
+        error_exit();
     }
 }
 
@@ -195,7 +197,8 @@ BOOL ProcessCmdLine(WCHAR *cmdline)
         switch (towupper(argv[i][1]))
         {
         case '?':
-            error_exit(STRING_USAGE);
+            output_message(STRING_USAGE);
+            error_exit();
             break;
         case 'D':
             action = ACTION_DELETE;
@@ -210,12 +213,13 @@ BOOL ProcessCmdLine(WCHAR *cmdline)
             /* unhandled */;
             break;
         case 'S':
+            silent = TRUE;
+            break;
         case 'V':
             /* ignored */;
             break;
         default:
-            output_message(STRING_INVALID_SWITCH, argv[i]);
-            error_exit(STRING_HELP);
+            usage(STRING_INVALID_SWITCH, argv[i]);
         }
     }
 
@@ -225,13 +229,12 @@ BOOL ProcessCmdLine(WCHAR *cmdline)
         {
         case ACTION_ADD:
         case ACTION_EXPORT:
-            output_message(STRING_NO_FILENAME);
+            usage(STRING_NO_FILENAME);
             break;
         case ACTION_DELETE:
-            output_message(STRING_NO_REG_KEY);
+            usage(STRING_NO_REG_KEY);
             break;
         }
-        error_exit(STRING_HELP);
     }
 
     for (; i < argc; i++)

programs/regedit/regproc.c

@@ -1091,11 +1091,15 @@ void delete_registry_key(WCHAR *reg_key_name)
     if (!(key_class = parse_key_name(reg_key_name, &key_name)))
     {
         if (key_name) *(key_name - 1) = 0;
-        error_exit(STRING_INVALID_SYSTEM_KEY, reg_key_name);
+        output_message(STRING_INVALID_SYSTEM_KEY, reg_key_name);
+        error_exit();
     }
 
     if (!key_name || !*key_name)
-        error_exit(STRING_DELETE_FAILED, reg_key_name);
+    {
+        output_message(STRING_DELETE_FAILED, reg_key_name);
+        error_exit();
+    }
 
     RegDeleteTreeW(key_class, key_name);
 }
@@ -1411,7 +1415,8 @@ static FILE *REGPROC_open_export_file(WCHAR *file_name, BOOL unicode)
         if (!file)
         {
             _wperror(L"regedit");
-            error_exit(STRING_CANNOT_OPEN_FILE, file_name);
+            output_message(STRING_CANNOT_OPEN_FILE, file_name);
+            error_exit();
         }
     }