Which function handles copying into the video ram?

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Bart Oldeman writes:

 > But DOS programs just write into the video ram directly, there is no
 > DOSEMU routine involved there, it's just a chunk of memory that DOSEMU
 > reads at intervals to update the screen.

I see. Now I understand why I couldn't find a routine to hook in.

 > Perhaps you are looking for
 > src/env/video/text.c
 > static void draw_string(int x, int y, char *text, int len, Bit8u attr)

This is exactly what I was looking for!

Thank you so very much for your kind help.

I could now make the desired screen output manipulation making my old dos
editor to run with dosemu under Linux as if it were written for Linux.

Again, thanks a lot.

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