How to print BMP and fit paper exactly?

I notice in some print dialogs it offers a feature to resize image to fit the paper exactly. What I am doing is scanning a 8.5 x 11 inch drawing to a bmp file. I then want to print it in VB and make it fit the paper exactly on any printer. Can someone tell me the best way to do this? And will it matter if each printer is different resolutions?

Thanks!