[Interest] QPushButton shortcut works on Qt 4 but not 5
Mark Gaiser
markg85 at gmail.com
Sat May 7 16:56:15 CEST 2016
On Sat, May 7, 2016 at 3:44 PM, Elvis Stansvik <elvstone at gmail.com> wrote:
> 2016-05-07 15:27 GMT+02:00 Elvis Stansvik <elvstone at gmail.com>:
> > Hi all,
> >
> > Maybe I'm doing something completely wrong, but on Qt 4.8.7, this
> > works (pressing Ctrl+O prints "clicked"):
> >
> > test.cpp:
> >
> > #include <QApplication>
> > #include <QMainWindow>
> > #include <QPushButton>
> > #include <QWidget>
> > #include <QDebug>
> >
> > class MainWindow : public QMainWindow {
> > Q_OBJECT
> >
> > public:
> > MainWindow(QWidget *parent = 0) : QMainWindow(parent) {
> > QPushButton *button = new QPushButton("Click Me (Ctrl+O)");
> > button->setShortcut(QString("Ctrl+O"));
> > connect(button, SIGNAL(clicked()), this, SLOT(onClicked()));
> >
> > setCentralWidget(button);
> > }
> >
> > public slots:
> > void onClicked() {
> > qDebug() << "clicked";
> > }
> > };
> >
> > int main(int argc, char *argv[]) {
> > QApplication app(argc, argv);
> >
> > MainWindow window;
> > window.show();
> >
> > return app.exec();
> > }
> >
> > #include "moc_test.cpp"
> >
> > but on Qt 5.6.0 it does not (nothing printed on Ctrl+O).
>
> I just tested on a couple of other machines (Qt 5.2.1 and Qt 5.5.1),
> and it worked on both of them. So something broke in Qt 5.6.0? Or Arch
> somehow broke my Qt?
>
> If anyone else is under KDE on Arch and could give it a try, I would
> much appreciate it.
>
> can you try to rule out plasma and it's default key bindings. There might
very well be a Ctrl+O global key binding in there.
Install openbox on your system en logon (via sddm) in an openbox session.
Then try your app and see if it works.
If that does work then plasma is probably taking that global shortcut. If
it doesn't then the issue is quite a bit deeper.
> Elvis
>
> >
> > test.pro for building:
> >
> > TEMPLATE = app
> > greaterThan(QT_MAJOR_VERSION, 4):QT += widgets
> > TARGET = test
> > INCLUDEPATH += .
> >
> > # Input
> > SOURCES += test.cpp
> > HEADERS += test.cpp
> >
> > Any ideas what may be going wrong? My window manager (KWin) is not
> > intercepting Ctrl+O (obviously). And besides, it doesn't seem to
> > matter which shortcut I use.
> >
> > Thanks in advance,
> > Elvis
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