Franček Prijatelj wrote:
>
> In Qt you don't have to (or must not?) destroy child widgets.
> Parent widget is responsible for destruction of it's children.
> So you have to destroy only dynamicaly allocated top level (without
> parent)
> widgets.
>
This is true if the widget is created with pure .cpp code
calling the constructors and destruction within from.
In Harbour-Qt we construct a widget with QWidget():new()
which allocates a pointer in HMV and we destruct that pointer
through GC. It is only possible if we initiate destruction ourselves.
So if we destroy the top level, then the pointers created for
its children are never get freed, or if HVM frees it, it is not there
anymore. Though we have protection code in destructors, but
it seems that is not enough, we need another approach.
Now I understand that for nested widgets, like treeview, I have to
start from the children then promoting to the parents while
destroying. I will try it today.
-----
enjoy hbIDEing...
Pritpal Bedi
_a_student_of_software_analysis_&_design_
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