coordinate manipulation

[ashishs]

How can I draw a line having following coordinates on my canvas?
x1,y1 = 1234567890.333333, 1232124543.456534
x2,y2 = 100, -4356645.659
I have set the mapping mode to MM_ANISOTROPIC.

[Robert113355]

As far as I know, you cannot. Most drawing is done using a single int as a pixel. This gives you absolute control over every pixel and makes drawing much easier, even though there is some rounding in divisions.