# CLEARSCREEN (W*S)

Graphics Subroutine: Erases the target area and fills it with the current background color.

## Module

USE IFQWIN

CALL CLEARSCREEN (area)

area | (Input) INTEGER(4). Identifies the target area. Must be one of the following symbolic constants (defined in `IFQWIN.F90`): $GCLEARSCREEN - Clears the entire screen. $GVIEWPORT - Clears only the current viewport. $GWINDOW - Clears only the current text window (set with SETTEXTWINDOW).

All pixels in the target area are set to the color specified with SETBKCOLORRGB. The default color is black.

## Example

    USE IFQWIN
    CALL CLEARSCREEN($GCLEARSCREEN)

Parent topic: Graphics Library Routines

## See Also

GETBKCOLORRGB
SETBKCOLORRGB
SETTEXTWINDOW
SETVIEWPORT