Re: PNG options?

From:
"Tom Serface" <tom.nospam@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc,microsoft.public.win32.programmer,microsoft.public.win32.programmer.gdi,microsoft.public.win32.programmer.ui
Date:
Fri, 23 Nov 2007 07:01:25 -0800
Message-ID:
<EA419FAC-1484-42A2-9B03-222FE62FBA20@microsoft.com>
You could use a professional library like LeadTools. I just checked and
they do handle PNG. I don't know how fast the library works, but it gets a
lot of good press:

http://www.leadtools.com/

Tom

"Somebody" <somebody@cox.net> wrote in message
news:O3v1j.291$so3.125@newsfe18.lga...

Yeah, I haven't made up my mind here. I've got some code based on GDI+
working, but I just hate to add that dependency. I looked at libpng for a
bit and I couldn't even get it compiled. I didn't spend much time on it to
be honest though.

I'm using detours and zlib in my DLL and just link those in statically to
my DLL. Zlib uses a lot of deprecated functions though. I didn't feel like
going through the code and changing them over to the _s functions.

Honestly, I really dislike 3rd party libs. I only used zlib because I
*had* to compress some large resources, and I will keep it for some TTF
resources, but I figured it would be better to use PNG over my
prioprietary zipped up BMP format :). Although, thats essentially what a
PNG file is.

"David Ching" <dc@remove-this.dcsoft.com> wrote in message
news:Nhu1j.1282$AR7.690@nlpi070.nbdc.sbc.com...

"Tom Serface" <tom.nospam@camaswood.com> wrote in message
news:D8D072B7-5425-49C6-B037-5EF7FCDDF995@microsoft.com...

I believe this one will also do PNG files:

http://msdn.microsoft.com/msdnmag/issues/01/10/c/


Unfortunately, OleLoadPicture() does not support .png images. And GDI+
is very slow. FWIW, CodeJock library which you can compile into your app
uses libpng. This seems the most promising.

-- David

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