Extracting Icon/Thumbnail for a file

Question

Hi, I want to extract the Icon/Thumbnail (different size) of a file from windows shell on my project. I am able to extract the thumbnail with out any issue, but the problem came when working with files that don't have thumbnail view. The issue is I am not able to get the bitmap as the windows explorer shows. I am getting a black color where explorer is showing a nice gray shadow.

I have uploaded 1. The image I got for an html file, 2. The image as shown by windows explorer, 3. The sample source code at http://www.fileflyer.com/view/seAOcBP

Any help here is appreciated.

Regards,

Manoj

Answer 1

The problem is how you save it. To have gradient alpha channel you need to save it as a PNG.