[Development] Resizing borders for dock widgets

Sérgio Martins sergio.martins at kdab.com
Wed Feb 22 11:53:16 CET 2023

On 2023-02-18 13:42, Axel Spoerl via Development wrote:
> Hi David,
> The margin for recognizing a mouse resize is handled by the window
> manager, hence not controlled by Qt.
> (...)

That depends if the QDockWidget is using native decorations or not, see 

When not using native decos, Qt::FramelessWindowHint is used and 
resizing is done via QWidgetResizeHandler, which has 4px of margin [2],
but I think only inwards, since if the mouse is outside the window won't 
receive the event. Maybe needs mouse grab.

[1] - 
[2] - 

Sérgio Martins | sergio.martins at kdab.com | Senior Software Engineer
Klarälvdalens Datakonsult AB, a KDAB Group company
Tel: Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322)
KDAB - The Qt, C++ and OpenGL Experts

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