Qt-embedded-interest Archive, November 2007
Qt 3.3.8 and EVM9200 keyboard
Message 1 in thread
Hi. I have one problem with keyboard and qt-embedded-free-3.3.8 on embedded Linux/framebuffer, AT91RM9200-based device. Our device has attached small LCD display and EVM9200 keyboard, keyboard has arrow buttons. These buttons work properly in terminal - we can scroll through shell history, etc. I also wrote simple terminal program to test whether arrow buttons are identified properly (according to linux/input.h), and yes they are identified correctly.
But in Qt Embedded application they don't work AT ALL. I reimplemented QApplication::notify() to catch all keypress events, and all events are working, except arrows. Qt doesn't seem to understand them at all. I wrote all keypress events to log file. After application is started, I pressed B, A, Left Arrow, Right Arrow. In log file I got only "B, A". My notify() method:
bool SQ_Application::notify(QObject *receiver, QEvent *e)
{
FILE *f = fopen("log", "a");
if(e->type() == QEvent::KeyPress)
{
QKeyEvent *ke = (QKeyEvent *)e;
fprintf(f, "KEY %d - %c\n", ke->key(), (char)ke->ascii());
}
fclose(f);
return QApplication::notify(receiver, e);
}
Any ideas ?
Regards, Krasu.
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