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migration guide: Mention button hierarchy changes

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Matthias Clasen 2020-08-30 22:25:56 -04:00
parent 17c4838569
commit cff211ea1f
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docs/reference/gtk/migrating-3to4.md
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@ -490,6 +490,17 @@ as property. GtkNotebook and GtkAssistant are similar.
gtk4-builder-tool can help with this conversion, with the --3to4 option
of the simplify command.
### Adapt to button class hierarchy changes
#GtkCheckButton is no longer derived from #GtkToggleButton. Call
gtk_check_button_set_active() instead of gtk_toggle_button_set_active().
#GtkRadioButton has been removed, and its grouping functionality has
been added to #GtkCheckButton and #GtkToggleButton. Use grouped
check buttons for traditional radio groups, and used grouped toggle
buttons for view switchers. The new API to set up groups of buttons
is gtk_check_button_set_group() and gtk_toggle_button_set_group().
### Adapt to GtkScrolledWindow API changes
The constructor for GtkScrolledWindow no longer takes the adjustments