Concerning Alex Feinman post at google groups

Hi,

this discussion at google groups discuss how to get icon from window handle

i have tried this code

IntPtr hIcon = (IntPtr)SendMessage(hWnd, 0x007f, 0, 0);

Icon.FromHandle(hIcon);

but unfortunatly this message returns zero to hIcon!!

could anybody help me,

thanks

Hanumanth Reddy
Not every window has necessarily an icon. For this reason, if you continue reading the thread, I suggest to find the process executable and use SHGetFileInfo to obtain its icon as a backup plan
J.B. III
are you sending the message to the correct hWnd Where does hWnd come from
comspy
As far as I can tell from looking at the MSDN docs for WM_GETICON (http://msdn.microsoft.com/library/default.asp url=/library/en-us/wceshellui5/html/wce50lrfwmgeticon.asp) and WM_SETICON (http://msdn.microsoft.com/library/default.asp url=/library/en-us/wceshellui5/html/wce50lrfwmseticon.asp), you will get NULL back if an icon has not been set for the given window. Note, in the remarks section, it indicates the icons are stored per window class, not per window. I don't belive that .NETCF sets the hIcon field when it registers its classes. My recommendation to you is if you get NULL back from WM_GETICON, display a generic icon of your choosing (or better yet, do what Alex suggests below).
Yosef Karasik

Dear timg_msft,

Thanks for your reply.

yes, i am sending it to the right hWnd, i got the hWnd using this class

http://blog.opennetcf.org/ctacke/PermaLink,guid,add17dea-c5d9-46c4-b405-af213678fa10.aspx

i used this hWnd to get its process ID and end this process, so i am sure the hWnd is correct.

Could you please tell me where the error came from

thanks
Concerning Alex Feinman post at google groups