hi,
I'm having problems drawing positive slope diagonal lines.
I wrote:
SWIM_WINDOW_T* pwin = (SWIM_WINDOW_T*)&window[0];
swim_put_line (pwin, 10,10, 200, 300);//negative slope diagonal line
swim_put_line (pwin, 10,10, 10, 300); //vertical line
swim_put_line (pwin, 10,300, 200,10);//positive slope diagonal line
swim_put_line (pwin, 10,300, 200,300);//horizontal line

I get all lines but the positive slope one is drawn on the negative one i.e

swim_put_line (pwin, 10,10, 200, 300);//negative slope diagonal line
swim_put_line (pwin, 10,300, 200,10);//positive slope diagonal line
are drawn as the same line.
Any tips?
Michal