extend_with_template

Description:

public uint extend_with_template (Widget widget, Type template_type, string buffer, size_t length) throws Error

Main private entry point for building composite components from template XML.

Most likely you do not need to call this function in applications as templates are handled by `GtkWidget`.

this	a `GtkBuilder`
template_type	the type that the template is for
buffer	the string to parse
length	the length of `buffer` (may be -1 if `buffer` is nul-terminated)
object	the object that is being extended

A positive value on success, 0 if an error occurred