add_child


Description:

public void add_child (Builder builder, Object child, string? type)

Add a child widget for Gtk.Builder support.

This method is called automatically when using UI files or Blueprint. It only accepts He.Button widgets as children.

Parameters:

builder

The Gtk.Builder instance (unused)

child

The child widget to add (must be He.Button)

type

Positioning hint: "left", "right", or null (defaults to left)