QKeySequence. How to re-define standard keyboard shotcut?

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QKeySequence. How to re-define stan...

November 24, 2011

blex

Lab Rat
191 posts

QKeySequence defines many QKeySequence::StandardKey {standard
keyboard shortcuts} to reduce the amount of effort required when
setting up actions in a typical application.

Some key combinations (Ctrl+W in my case) are hard-coded in QKeySequence.cpp

The list of hard-coded key sequences are provided in the QKeySequence class documentation.

If the QAction is created with the same shot-cut then slot is not called and the following message is printed:

QAction::eventFilter: Ambiguous shortcut overload: Ctrl+W

How can I re-define Ctrl+W key combination?

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Oleksiy Balabay

5 replies

November 24, 2011

RazrFalcon

Lab Rat
114 posts

Can you show code where you create yours shortcut?

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November 25, 2011

blex

Lab Rat
191 posts

I modified the examples\mainwindows\mdi

MdiChild::MdiChild()
{
setAttribute(Qt::WA_DeleteOnClose);
isUntitled = true;
QKeySequence ks("Ctrl+W");
QAction* a = new QAction(this);
a->setShortcut(ks);
connect(a, SIGNAL(triggered()), this, SLOT(ctrlWPressed()));
addAction(a);
}
void MdiChild::ctrlWPressed() {
qDebug("CtlW pressed");
}

And the correspondent slot declaration in the header file.

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————————————

Oleksiy Balabay

November 25, 2011

Volker

Robot Herder
5428 posts

The QMdiArea defines Ctrl+W as shortcut for closing a MDI subwindow.

Why do you want to change the standard behavior? You most probably are going to annoy your users…

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November 25, 2011

blex

Lab Rat
191 posts

Volker wrote:
The QMdiArea defines Ctrl+W as shortcut for closing a MDI subwindow.

Why do you want to change the standard behavior? You most probably are going to annoy your users…

I want to change the standard behavior because it is the end-user requirement :)

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————————————

Oleksiy Balabay

November 25, 2011

Volker

Robot Herder
5428 posts

The shortcut is set in QMdiSubWindowPrivate::createSystemMenu() during the construction of a QMdiSubWindow, I doubt that you can remove it without having to patch Qt libs.

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November 24, 2011