[ Version ( since = "1.8.0" ) ]
public void add_to_size_group (SizeGroup group)
Adds the labels to the specified size group so that they are aligned nicely with other entries in a form.
It is expected that the NMACertChooser is a GtkGrid with two columns with the labels in the first one.
| this |
certificate chooser button instance |
| group |
a size group |