Solved Connecting the clear button of a QLineEdit to a custom slot
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Hi :-)
Is it possible to connect a
QLineEdit
's clear button that can be displayed viaQLineEdit::setClearButtonEnabled()
to a custom slot? I found https://bugreports.qt.io/browse/QTBUG-36257 which contains the following code to do so:for (int i(0); i < myLineEdit->children().size(); ++i) { QAction *myClearAction(qobject_cast<QAction *>(myLineEdit->children().at(i))); if (myClearAction) { connect(myClearAction, &QAction::triggered, myLineEdit, &QLineEdit::returnPressed, Qt::QueuedConnection); } }
but I wondered if anything has been changed concerning this since then. The solution posted will probably work, but looks a bit like a hack to me ;-)
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@l3u_
Hi
Should still work the same.
And yes its a bit of hack since we look up its child but
on the other hand, it wont crash if not there and
we just hook up to your slot.
So i would use it, even if not pretty. -
Hi,
The alternative is for you to add your own action to the QLineEdit so you ensure that you have full control over it.
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@SGaist Hey, that's actually a very good idea I did not think about yet – seems like I could simply as well add my own "clear" button with the same icon ;-) Thanks for the hint … sometimes, you miss the forest for the trees!