The rottags key alone now toggles hog tags; preecise+rottags is used to cycle tags I figured that the toggling hog tags on and off is a bit more important than changing the tag types, because you sometimes run into a hog whose tags block your view, so a 1-key press is helpful. On the other hand, you probably only want to changing the tag types in the game once (if at all).

#include <QApplication>

#include "mainform.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyWindow *mainWin = new MyWindow;
    mainWin->show();
    return app.exec();
}