在一个QTreeWidget中捕捉一个keyPressEvent而没有焦点 [英] Catching a keyPressEvent in a QTreeWidget with no focus

问题描述

所以我希望通过在焦点策略上设置NoFocus来消除QTreeWidget上的丑陋的虚线边框。现在我需要赶上keyPressEvents，但重点政策是防止这一点。任何想法如何绕过这个捕获22，以便我可以捕获一个删除按键，以方便删除项目？提前致谢！

解决方案

我假设你正在尝试做一些你真的不应该做的事情，但无论如何...

这是要走的路：
http://doc.qt.io/qt-4.8/qwidget.html#grabKeyboard

So I desired to remove the ugly dotted border on my QTreeWidget by setting NoFocus on the focus policy. Now I need to catch keyPressEvents, but the focus policy is preventing that. Any ideas how one might circumvent this catch 22 so that I can catch a delete key press for easy item deletion? Thanks in advance!

解决方案

I assume you are trying to do something that you really shouldn't, but anyways …

This is the way to go: http://doc.qt.io/qt-4.8/qwidget.html#grabKeyboard

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