UNLOCK BACKBUFFER This command unlocks the backbuffer and frees the system to continue as normal.
Syntax
    UNLOCK BACKBUFFER
Returns
This command does not return a value.
Description
The backbuffer is the actual screen you see each refresh. Locking the backbuffer prevents other activities to be performed regarding the backbuffer so it is essential you unlock the backbuffer when you have finished.
Example Code
    cls

    set display mode 800,600,32

    set window on

    lock backbuffer

    wait 1000*8

    unlock backbuffer

    do

    loop

    end
See also
DISPLAY Commands Menu Index