<![CDATA[Qt- esc key release issue]]>I have an application in which i have a class T derived from X, and X is derived from QWidget class. In class X i have an overwritten key release event handler which treats the esc key code when released by closing the window and performing some actions. If T doesn't overwrite that and enharits the behaviour from X, when i press esc and T is busy handling the key release and performing certain actions, if I press esc again by what handler will it be handled (i get a weird seg fault, and i'm sure it's from my code, but i can't trace where the second esc key release is handled, and I don't have a lot of experience with this framework) thanks in advance :)

]]>https://forum.qt.io/topic/18172/qt-esc-key-release-issueRSS for NodeSun, 12 Apr 2026 08:34:11 GMTTue, 10 Jul 2012 11:10:15 GMT60<![CDATA[Reply to Qt- esc key release issue on Wed, 11 Jul 2012 16:55:42 GMT]]>bq. @#
if(e->key()==X->getEscKeyCode)

          FunctionDoingSomething();

@

Where does the X-> come from? You probably ment to use X::getEscKeyCode()? Please send a copy of your original source code, as this "pseudo code" does not help to help you.

]]>https://forum.qt.io/post/144134https://forum.qt.io/post/144134Wed, 11 Jul 2012 16:55:42 GMT<![CDATA[Reply to Qt- esc key release issue on Wed, 11 Jul 2012 10:58:21 GMT]]>well the classes are something like
@
class T:public X{
...

class X: public QWidget {
....
@
and the handler in X is
@
void X::keyReleaseEvent(QKeyEvent* e){

if(e->key()==X->getEscKeyCode)
FunctionDoingSomething();

}
@
and T just enharits it from X, no modification.

So when it is T, in FunctionDoingSomething(), to be more exact, how will the keyrelease of Esc be treated, because i want to trace it's effect, it goes into segmentation fault

Edit: use @ tags around code sections please, Andre

]]>https://forum.qt.io/post/144070https://forum.qt.io/post/144070Wed, 11 Jul 2012 10:58:21 GMT<![CDATA[Reply to Qt- esc key release issue on Tue, 10 Jul 2012 20:47:30 GMT]]>[quote author="Slyvr" date="1341929415"]
[quote author="Andre" date="1341920033"]Please just show us your key handing reimplementations... We can't help you trace down what happens without seeing your (relevant) code. [/quote]

ok, i will come with the code soon, thanks for the answer [/quote]

Yeah, it will be great.

]]>https://forum.qt.io/post/144037https://forum.qt.io/post/144037Tue, 10 Jul 2012 20:47:30 GMT<![CDATA[Reply to Qt- esc key release issue on Tue, 10 Jul 2012 14:10:15 GMT]]>[quote author="Andre" date="1341920033"]Please just show us your key handing reimplementations... We can't help you trace down what happens without seeing your (relevant) code. [/quote]

ok, i will come with the code soon, thanks for the answer

]]>https://forum.qt.io/post/144003https://forum.qt.io/post/144003Tue, 10 Jul 2012 14:10:15 GMT<![CDATA[Reply to Qt- esc key release issue on Tue, 10 Jul 2012 11:33:53 GMT]]>Please just show us your key handing reimplementations... We can't help you trace down what happens without seeing your (relevant) code.

]]>https://forum.qt.io/post/143992https://forum.qt.io/post/143992Tue, 10 Jul 2012 11:33:53 GMT