Xlock locks the x server till the user enters his/her password at the keyboard. while xlock is running, all new server connections are refused. the mouse cursor is turned off. the screen is blanked and a changing pattern is put on the screen. if a key or a mouse button is pressed then the user is prompted for the password of the user who started xlock.

this version is built with only blank mode, the companion package xlockmore-gl contains them. this is the only difference between the two packages.