Fwd: How to forbid undesired redrawing of the parent?

Hello list.

I have two custom widgets: widget A is a container, widget B is a simple widget. Both of them are window widgets. Widget A can contain a lot of instances of widget B. 

The problem is when I call gtk_widget_queue_draw() for an instance of widget B it also causes the parent widget A to get redrawn as well. Considering that the drawing widget A depends on all of it children (i.e. their positions and sizes) it can lead to quite an overhead which is not needed in this case (that is if the instance of B being redrawn doesn't change its geometry).

So, is there a way to prevent the parent window widget A from redrawing in case of one of its window children B gets redrawn?

BR, Vitaly Kirsanov
skype: vkirsan

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