WordPress at a glance
filter is not described

(type)_upload_iframe_src filter-hook . WP 3.0.0

Filters the upload iframe source URL for a specific media type.

The dynamic portion of the hook name, $type, refers to the type of media uploaded.

Usage

add_filter( '(type)_upload_iframe_src', 'filter_function_name_8070' );
function filter_function_name_8070( $upload_iframe_src ){
	// filter...

	return $upload_iframe_src;
}
$upload_iframe_src(string)
The upload iframe source URL by type.

Where the hook is called

get_upload_iframe_src()
wp-admin/includes/media.php 631
$upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );

Where the hook is used (in WP core)

Does not used.