Re: HICON from HWND?
Vincent Fatica schrieb:
On 24 Jan 2008 07:16:03 -0800, "Scott Seligman" <seligman@example.com> wrote:
hIcon = SendMessage(hWnd, WM_GETICON, ...);
Yes (thanks) I realized that shortly after posting. But many apps don't respond
well (notepad, or devenv, for example). I wound up digging and using
ExtractIcon().
Before you go the ExtractIcon route, you might try calling
GetClassLong(hWnd, GCL_HICON) to get the icon for applications that
use a different icon than the first icon in their module.
Thanks, Scott. That works in the two troublesome cases I mentioned (notepad and
devenv). Do you have any idea how reliable it is? Would you get a
system-assigned icon it the WNDCLASS didn't define one?
I'd say no method is 100% reliable since there is no guarantee that an
applicaton as an icon at all. As far as I remember from my old Windows 2 Petzold
days, an application can chose to get WM_PAINT messages to draw the icon, and
then it can draw anything it wants (though my memory could be wrong...)
Norbert
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