re: DPI Scaling in Windows Vista

Andrew Pollack — Sun, 03 Dec 2006 07:52:25 GMT

Thanks, Kam

I've cross posted a link here from my own site where I'd posed the question in addition to emailing you.

It's a great answer. I can't wait to try it out.

re: DPI Scaling in Windows Vista

jayson knight — Sun, 03 Dec 2006 11:35:45 GMT

I've noticed that Winforms 2.0 are much more DPI friendly as well.

re: DPI Scaling in Windows Vista

Vlasta — Mon, 18 Dec 2006 21:15:52 GMT

Hello and thanks for the information,

with all the fuzz about DPI in Vista I was thinking that it would be nice to have all the toolbar and menu images using non-scaled graphics in 120DPI mode (because they look really ugly when scaled).

I did few tests in 120 DPI with the GetSystemMetrics function and there is one strange result:

A small icon is 16x16 pixels in 96 DPI. In 120 DPI I expected it to be 16*120/96=20 pixels but GetSystemMetrics returned 22 pixels instead. (Under Windows XP its size is 20 pixels in 120DPI.)

Large icon size works as expected: 32x32 in 96DPI and 40x40 in 120DPI.

Why this 2-pixel discrepancy? I was planning to make the toolbar icons size equal to small icon size, but it does not seem to be a good idea anymore... Is there any official or unofficial recommendation how to deal with toolbars under different DPIs?

Thanks