2010年6月10日 · As you can see, there is no easy way to just enable the tool tip of some widget. You have to provide global coordinates to QToolTip::showText. Another way to do this is to create a QHelpEvent yourself and post this event using QCoreApplication::postEvent. This way, you can specify the text to be shown in your widget using QWidget::setToolTip ...

2018年7月6日 · I had the same issue at first with Qt 5.12.2. I was missing the third argument to QToolTip::showText. I had to add the parent widget. In that case, the CSS that I had applied to the tooltip in mainwindow.ui applied to the QToolTip. Without the parent, it is a separate window shown on the position specified and has no knowledge of the css.

2011年1月25日 · So the question is in the title. QToolTip doesn't seem to provide the wordwraop feature. It is possible, however, to replace the Nth space with an \n using regexps, but I was wondering if anyone has a suggestion for a better sollution. Specifically, my problem with my approach is that it doesn't take the length of text into account.

2014年11月27日 · The best I have achieved is to connect the hovered signal of the QAction to a QTooltip show: connect ...

2015年8月13日 · I am using Qt4.8 to create a pushbutton, I'm also using setStyleSheet function to set style for this button and a tooltip. But the stylesheet is only applied to the button, not the tooltip. This is...

2015年12月15日 · Is there a way to show a picture/image in a QToolTip? I want to show small images of keyboard-buttons to explain the user which buttons/shortcuts he can use on that specific widget.

2019年11月1日 · void QToolTip::showText(const QPoint &pos, const QString &text, QWidget *w, const QRect &rect, int msecDisplayTime) You should be able to specify a time for how long to display the tooltip. EDIT: Okay so seems like this method doesn't work as expected with a mousePress event, so here's an alternative using a QTimer: Add these to your class:

2009年12月5日 · From the QToolTip documentation: The simplest and most common way to set a widget's tool tip is by calling its QWidget::setToolTip() function. It is also possible to show different tool tips for different regions of a widget, by using a QHelpEvent of type QEvent::ToolTip.

In the documentation for QWidget::mouseMoveEvent(QMouseEvent*) you can read the following description:. If you want to show a tooltip immediately, while the mouse is moving (e.g., to get the mouse coordinates with QMouseEvent::pos() and show them as a tooltip), you must first enable mouse tracking as described above.

You can do something like this to style a QToolTip in general. QToolTip { color: #fff; background-color: #000; border: none; } When you need to style QToolTips specifically, based on their parent widget you can use following syntax: ParentWidgetName QToolTip { color: #333; background-color: #1c1c1c; border: none; } Reading this will help you ...