QTest::keyPress is not returning nativeScanCode

[vels]

Hi,

I am simulating F1 key using QTest::keyPress() method to test keypress event, on simulation of F1 key when i check for nativeScanCode, it returns 0 value. can any one help?

//To simulate F1 key press
QTest::keyPress(&kboard, Qt::Key_F1);
 
//To check keypress Event
 void keyboard::keyPressEvent(QKeyEvent* ke) {
if ( ke->type() == QEvent::KeyPress ) {
 QKeyEvent* key_event = static_cast<QKeyEvent *>(ke);
 //To check F1 key simulation
 if (key_event->key() == Qt::Key_F1) {
    	int nativeCode = key_event->nativeScanCode();
    	qDebug()<< nativeCode <<endl;
	}
   }
 }

//To simulate F1 key press
QTest::keyPress(&kboard, Qt::Key_F1);

//To check keypress Event
 void keyboard::keyPressEvent(QKeyEvent* ke) {
if ( ke->type() == QEvent::KeyPress ) {
 QKeyEvent* key_event = static_cast<QKeyEvent *>(ke);
 //To check F1 key simulation
 if (key_event->key() == Qt::Key_F1) {
    	int nativeCode = key_event->nativeScanCode();
    	qDebug()<< nativeCode <<endl;
	}
   }
 }

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Thanks
vels

[wysota]

You are using artificial events so there is no extended information available for it.

[vels]

Hi,

what is an extended information, is nativeScancode an extended info? plz throw some light on it.

Thanks
vels

[wysota]

If you don't know what nativeScancode is, why do you use it?

[vels]

I pretty well know nativeScancode is a unique unsigned int value which is returned on occurrence of a key stroke; from your POV artificial events (QTest::keyPress) don’t give extended information, want to know is nativeScancode one such extended information?

[wysota]

Would I write my post like that if it weren't? I assumed you have read the documentation prior to writing your post, maybe I assumed wrong, so - yes, according to what the docs say, native scan code is an extended information provided by the platform. Are you sure you do need this kind of information?

[vels]

yep, I will ignore nativeScanCode and make use of QKeyEvent::key() which returns unicode

[wysota]

QKeyEvent::key() doesn't return unicode. It returns enum values.