#include <QObject>
#include <QProcess>
- #include <QtGui/QApplication>
+
+#if QT_VERSION >= 0x040890 // Qt 4.1.2, the QT_VERSION macro will expand to 0x040102.
+ #include <QtWidgets/QApplication>
+#else
+ #include <QApplication>
+#endif
#ifdef Q_WS_WIN
#define F_EXE ".exe"