Disable frontend page editing

Ok,
my solution for now is to check directly in the template which user wants to edit what kind of post…

I wrote something like this into the template file before the loop starts:

if ( isset($_GET['pid']) && get_post_type( $_GET['pid'] ) == 'page' ) {
	echo "You are not allowed to edit this page.";
	get_footer();
	exit();
}