Adds @child at a fixed coordinate in the GtkTextView's text window.
The @xpos and @ypos must be in buffer coordinates (see [method@Gtk.TextView.get_iter_location] to convert to buffer coordinates).
@child will scroll with the text view.
If instead you want a widget that will not move with the GtkTextView contents see #GtkOverlay.
a #GtkWidget
X position of child in window coordinates
Y position of child in window coordinates
See Implementation
Adds @child at a fixed coordinate in the GtkTextView's text window.
The @xpos and @ypos must be in buffer coordinates (see [method@Gtk.TextView.get_iter_location] to convert to buffer coordinates).
@child will scroll with the text view.
If instead you want a widget that will not move with the GtkTextView contents see #GtkOverlay.