Widget.getPreferredHeight
void getPreferredHeight(out int minimumHeight, out int naturalHeight)Retrieves a widget’s initial minimum and natural height.
This call is specific to width-for-height requests.
The returned request will be modified by the GtkWidgetClass::adjust_size_request virtual method and by any #GtkSizeGroups that have been applied. That is, the returned request is the one that should be used for layout, not necessarily the one returned by the widget itself.
Parameters
minimumHeight | location to store the minimum height, or null |
naturalHeight | location to store the natural height, or null |