How to round QToolTip corners with CSS and QT

Question

Please post some working example. The one below makes two borders: the rectangular background frame in black and a white outline with rounded edge. I can\'t believe it has n

Answer 1

The solution is to set a custom mask on tooltip widget. I can think of two ways of doing that:

• Implement an own QStyle with a mask returned for QStyle::SH_ToolTip_Mask style hint. That is a generic way as default QToolTip would use this mask (example).

• Create a custom QToolTip based class with a proper mask and then use QHelpEvent (QEvent::ToolTip) event of your widget to show it. It's not a generic solution as it requires to filter events on all widgets which need custom tooltip.