The Old New Thing

The evolution of the ICO file format, part 4: PNG images

October 22, 2010 Oct 22, 2010 10/22/10

Raymond Chen

We finish our tour of the evolution of the ICO file format with the introduction of PNG-compressed images in Windows Vista. The natural way of introducing PNG support for icon images would be to allow the field of the to take the value , in which case the image would be represented not by a DIB but by a PNG. After all, that's why we ...