WordPress at a glance
filter is not described

wp_generator_type filter-hook . WP 2.5.0

Filters the output of the XHTML generator tag.

Usage

add_filter( 'wp_generator_type', 'filter_function_name_4441' );
function filter_function_name_4441( $generator_type ){
	// filter...

	return $generator_type;
}
$generator_type(string)
The XHTML generator.

Where the hook is called

wp_generator()
wp_generator_type
wp-includes/general-template.php 4095
the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );

Where the hook is used (in WP core)

Does not used.