Solved: keygrabber or keypress event should be used for a game?

[SherifOmran]

Hello guys,

I am trying to fetch key pressed for a game. I tried to use keypress and keyrelease event but as long as I am on the us-en local keyboard (MAC) the event is fired. When I switch to Arabic keyboard, event does not fire?

I don't know how to use keygrabber, can any body help with a small example?

thanks

[SherifOmran]

I found the solution in the following site in German:
"
http://www.c-plusplus.de/forum/268851-full":http://www.c-plusplus.de/forum/268851-full

however, the code does not allow getting keys when focus is lost. is there a way for this?
thanks

main.cpp

@
#include "keygrabber.h"

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
keygrabber blub;
blub.resize(200, 1);
blub.show();

//QObject::connect(blub.abbrechen, SIGNAL(clicked()), &app, SLOT(quit()));

return app.exec();

} @

keygrabber.h
@
#ifndef KEYGRABBER_H
#define KEYGRABBER_H

#include <QApplication> // QT
#include <QWidget> // QT
#include <QKeyEvent> // QT

#include <fstream> //ofstream C++

class keygrabber : public QWidget
{
public:
keygrabber(QWidget *parent = 0);

    int taste_pressed[2];
    bool sonderzeichen_b;
    std::string sonderzeichen;

    char itoc(int taste_i);
    void schreiben(char taste_c);
    void eintragen(int taste_i);

protected:
    virtual void keyPressEvent(QKeyEvent *event);
    virtual void keyReleaseEvent(QKeyEvent *event);

};

#endif
@

keygrabber.cpp
@
#include "keygrabber.h"

keygrabber::keygrabber(QWidget *parent)
: QWidget(parent)
{
for (int i=0; i<2; i++){taste_pressed[i] = -1;}
}

void keygrabber::keyPressEvent(QKeyEvent *event)
{
int taste_i;
taste_i = event->key();
eintragen(taste_i);
char taste_c;
taste_c = itoc(taste_i);
schreiben(taste_c);
}

void keygrabber::eintragen(int taste_i)//traegt gedrueckte tasten in das array taste_pressed[] ein; es duerfen max. 2 tasten gleichzeitig gedrueckt werden; fuer shift benoetigt
{
for (int i=0; i<2; i++)
{
if (taste_pressed[i] == -1)
{
taste_pressed[i] = taste_i;
return;
}
}
}

char keygrabber::itoc(int taste_i)//korrigiert A zu a und konvertiert das char zu int; sonderzeichen werden anders geschrieben
{
if ((taste_i >=32)&&(taste_i <=126))//nur lesbare zeichen
{
bool shift=false, altgr=false;
for (int i=0; i<2; i++)
{
if (taste_pressed[i] == 16777248){shift = true;}
if (taste_pressed[i] == 16781571){altgr = true;}
}
sonderzeichen_b = false;
if (true)//if (altgr == false)
{
if ((taste_i >= 65)&&(taste_i <= 90))
{
if (shift == false)
{
taste_i += 32;//grosse buchstaben aber kein shift!
}
}
if ((taste_i >= 97)&&(taste_i <= 122))
{
if (shift == true)
{
taste_i -= 32;//kleine buchstaben trotz shift!
}
}
}
else//if (altgr == true)
{

    }
    char taste_c;
    taste_c = (char) taste_i;
    return taste_c;
}
else
{
    sonderzeichen_b = true;
    switch (taste_i)
    {
        case 16777223:
            sonderzeichen = "[DELETE]";
            return '\0';
        case 16777219:
            sonderzeichen = "[BACKSPACE]";
            return '\0';
        case 16777220:
            sonderzeichen = "[ENTER]";
            return '\0';
        case 16777217:
            sonderzeichen = "[TABULATOR]";
            return '\0';
    }
}
return '\0';

}

void keygrabber::schreiben(char taste_c)//schreibt die keygeloggten daten in eine datei
{
std::ofstream write;
write.open("keylog.txt", std::ios_base::out|std::ios_base::app);
if (sonderzeichen_b == false){write << taste_c;}
else {write << sonderzeichen;}
write.close();
}

void keygrabber::keyReleaseEvent(QKeyEvent *event)//traegt die zeichen wieder aus dem array taste_pressed[] aus
{
for (int i=0; i<2; i++)
{
if (taste_pressed[i] == event->key()){taste_pressed[i] = -1;}
}
}
@

[SherifOmran]

Problem found:

In the GUI, I have a QTextBrowser when i gets the focus it does not other languages (ex. Arabic, Russian) Key press events