DirectDraw zoom

2008-07-16 02:37:16 AM
I'm developing a drawing application, like Paint. I wanted to use
DirectDraw capabilities for doing zoom by stretching and that's what I do.
The problem is that when drawing the image 3, 4... times bigger some pixels
are bigger than the others, bigger than they should be. All the pixels
should be exactly the same size.
Is possible to tell DirectDraw to make every pixel exactly n times
bigger (2, 3 and so on...)