change SDL.h/SDL.cpp to use HWDataManager instead of poking around on the harddrive - also I added doc/comments to the class
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}