From b15cb09af6a174cd24cb6991de8c2f19518dd005 Mon Sep 17 00:00:00 2001
From: Alexander Mai <amai@users.sf.net>
Date: Wed, 26 Sep 2012 20:26:46 +0200
Subject: [PATCH] Fixed #3489 ('cppcheck-gui -h' doesnt work on WinXP)

---
 gui/main.cpp | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/gui/main.cpp b/gui/main.cpp
index 0c6ce2fa7..648bdb71f 100644
--- a/gui/main.cpp
+++ b/gui/main.cpp
@@ -23,6 +23,7 @@
 #include <QTranslator>
 #include <QMetaType>
 #include <QStringList>
+#include <QMessageBox>  // currently used only on _WIN32
 #include <iostream>
 #include "mainwindow.h"
 #include "erroritem.h"
@@ -67,10 +68,21 @@ bool CheckArgs(const QStringList &args)
 
 void ShowUsage()
 {
-    std::cout << "Cppcheck GUI.\n\n";
-    std::cout << "Syntax:\n";
-    std::cout << "    cppcheck-gui [OPTIONS] [files or paths]\n\n";
-    std::cout << "Options:\n";
-    std::cout << "    -h, --help    Print this help\n";
-    std::cout << "    -p <file>     Open given project file and start checking it\n";
+    const char helpMessage[] =
+        "Cppcheck GUI.\n\n"
+        "Syntax:\n"
+        "    cppcheck-gui [OPTIONS] [files or paths]\n\n"
+        "Options:\n"
+        "    -h, --help    Print this help\n"
+        "    -p <file>     Open given project file and start checking it\n";
+#if defined(_WIN32)
+    QMessageBox msgBox(QMessageBox::Information,
+                       "Cppcheck GUI",
+                       helpMessage,
+                       QMessageBox::Ok
+                      );
+    (void)msgBox.exec();
+#else
+    std::cout << helpMessage;
+#endif
 }