qt - What property control how much you can extend a widget? -

when using qdockwidget, there limit how can extend dock part. change limit. there way so?

for instance if there qdockwidget on left , use mouse increase size horizontally, there point after moving mouse not make dock larger horizontically. there way change this?

there 2 types of sizes here:

1. 1 size of qdockwidget: see qdockwidget specially appearance section says:

a qdockwidget acts wrapper child widget, set setwidget(). custom size hints, minimum , maximum sizes , size policies should implemented in child widget. qdockwidget respect them, adjusting own constraints include frame , title.

2. other qdockwidget in. have inside widget, layout, etc. if haven't declared of this, try this()->getlayout() , change size/constraints