|cls||clear screen graphics procedure|
|Description|| The cls (clear screen) procedure is used to blank the output window. The cursor is set to the top left (to row 1, column 1).|
|Details|| The entire output window is set to the current text background color (as set by colorback or Text.ColorBack).|
The output window must be in "graphics" mode. See setscreen for details.
|See also|| See also predefined unit Text.|