🚀 go-pugleaf

I have a DOS plotter utility which I use to plot graphs. Plotter is
hooked on COM2 and under dos i simply use MODE LPT1:=COM2 and
drive output to stdprn (in C). Under OS/2 i use SPOOL /D:LPT1
/O:COM2 but spooling is buffered.

My program calibrates itself to the grid on paper via few test points.
The program gives command to plot a point, and I check visually the
deviation from nearest grid lines. Unfortunately the command is
jammed in buffer. I have to send either zillion commands to get buffer
flushed or break the program which causes EOF. While plotting curves
some command at the end are lost and plotter times out. All these
make the program quite useless.

Is there an easy way to avoid the buffering? Otherwise I have to
start driving things directly to COM port or port the program to
OS/2.

	Jarkko Lavinen