ClearText                                                      FastTTT



Purpose   To clear all text on a rectangular section of the screen.

Declaration    ClearText(X1,Y1,X2,Y2,F,B:integer);

          X1 is the top left X coordinate (1..79)
          Y1 is the top left Y coordinate (1..24)
          X2 is lower right X coordinate (2..80)
          Y2 is lower right Y coordinate (2..25)
          F is the foreground color of the blank line (0..15)
          B is the background color of the blank line (0..15)

Uses FastTTT.

Remarks   The actual display color of the area will be set to B. The
          only reason for setting the foreground color is to change
          the attribute byte, for subsequent writes.



Example


               USES FASTTTT;
               BEGIN
                 CLEARTEXT(1,1,40,25,15,0);
               END.


The lefthand side of the screen is cleared with a black background.