ExtractIcon and x16 icons

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3 total messages Started by Mike Collins Fri, 07 Mar 2008 13:25

#464

Author: Mike Collins
Date: Fri, 07 Mar 2008 13:25

17 lines
1651 bytes

Hi all, just got two quick quesitons regarding ExtractIcon - can't seem to 
find the answers anywhere.

I have a UI and i want to display the (default) icon for a give executable. 
I'm using a TImage and i want to display the resultant icon as a 16x16 
image.  I use ExtractIcon to get the target applications icon (using 0 as 
the last parameter) but it always returns me a 32x32 icon - maybe i'm 
missing something about the HICON ? but could anyone tell be how to get the 
16x16 image or convert this.

Also, if i assign the returned HICON handle to a TIcon 
(Image1->Picture->Icon->Handle = ExtractIcon(HInstance, "some.exe", 1)) do i 
need to call DestroyIcon() when i'm finished with it?

Thanks in advance,

Mike

Re: ExtractIcon and x16 icons

#466

Author: Minas
Date: Fri, 07 Mar 2008 14:12

29 lines
1826 bytes

"Mike Collins" <its@TheBottomOfThePost> wrote:
>
> I have a UI and i want to display the (default) icon for a give 
> executable. I'm using a TImage and i want to display the resultant icon as 
> a 16x16 image.  I use ExtractIcon to get the target applications icon 
> (using 0 as the last parameter) but it always returns me a 32x32 icon - 
> maybe i'm missing something about the HICON ? but could anyone tell be how 
> to get the 16x16 image or convert this.

Hi Mike ,

you can use ExtractIconEx

  HICON phiconSmall[1];
  ExtractIconEx(Application->ExeName.c_str() ,0,NULL,phiconSmall,1);
  Image1->Picture->Icon->Handle = phiconSmall[0];

or LoadImage

void __fastcall TForm1::Button2Click(TObject *Sender)
{
  Image3->Stretch = true;
  Image3->Picture->Icon->Handle = LoadImage(HInstance,"MAINICON",IMAGE_ICON, 
16, 16,LR_DEFAULTCOLOR );
}

Best Regards

Minas

Re: ExtractIcon and x16 icons

#467

Author: Mike Collins
Date: Fri, 07 Mar 2008 16:31

4 lines
1056 bytes

Wow, that was easy - hadn't looked properly at ExtractIconEx() - though just 
started to read about it when i saw your reply.  Thanks alot...

Mike

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