Usage:
TXMODE (m)
Description:
Sets the video text mode. Setting the video mode is only relevant when used in the DOS environment.
0=Black and White 40 columns;
1=Color 40 columns;
2=Black and White 80 columns;
3=Color 80 columns;
7=Monochrome 80 columns;
64=EGA/VGA 43/50 lines.
