Appends the rich text targets registered with gtk_text_buffer_register_serialize_format() or gtk_text_buffer_register_deserialize_format() to the target list. All targets are added with the same info. Since 2.10
an ID that will be passed back to the application
if TRUE, then deserializable rich text formats will be added, serializable formats otherwise.
a GtkTextBuffer.
See Implementation
Appends the rich text targets registered with gtk_text_buffer_register_serialize_format() or gtk_text_buffer_register_deserialize_format() to the target list. All targets are added with the same info. Since 2.10