[Oberon] How to combine raster image and text in Pictures.Picture of ETHOberon

[Dieter]

Good afternoon!

I am trying to combine raster image and text in a Pictures.Picture.

I can write something into the picture with "Display3.String", but I 
cannot store it in the Picture.
I would need some PROCEDURE like "Pictures.String", if it existed.
Here is the code (ETHOberon on Windows)
===========================================================
MODULE PictText;
(* How to write text in a Pictures.Picture *)
IMPORT Oberon, Texts, Out, Display, Display3, Pictures, Fonts, Files;
VAR P : Pictures.Picture;
PROCEDURE plot*;
VAR x,y,xmax,ymax : INTEGER; fnt : Fonts.Font; mask : Display3.Mask; fP 
: Files.File; len, pos : LONGINT;
BEGIN
xmax := 1016; ymax := 533;
     NEW(mask); Display3.Open(mask);
          Display3.Add(mask,0,0,xmax,ymax);


  NEW(P); Pictures.Create(P, xmax,ymax,8);
     FOR y := 0 TO ymax - 1 DO  (* jpg bereinigen *)

             FOR x := 0 TO xmax - 1 DO Pictures.Dot(P,  x * y MOD 256, 
x, y, Display.replace ) END
  END;

      Pictures.DisplayBlock( P, 0, 0, xmax, ymax, 180, 20, 
Display.replace );

                  fnt := Fonts.This( "Syntax14.Scn.Fnt" );
                Display3.String( mask, 15, 500, 250, fnt, "This is 
Text!!!!!", Display.filled );


(*        Pictures.Update(P,0,0,1016,533); has no effect.

             Pictures.DisplayBlock( P, 0, 0, xmax, ymax, 180, 20, 
Display.replace );   *)


                             fP := Files.New("textwrite.Pict");
                     len := Pictures.Address( P );  Out.Int( len, 10 );  
pos := 0;  Pictures.Store( P, fP, pos, len );  Files.Register( fP );
         Files.Close( fP );
END plot;
BEGIN
END PictText.plot

System.Free PictText ~
===============================================
Regards Dieter

____________________________________
Dr. Dieter Glötzel