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Hello everyone,
I am reading Unknwn.h, and the code logics is a little fuzzy. The QueryInterface, AddRef an Release are all pure virtual methods, right?
thanks advance,
George
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I wish chris to impose a limit on number of questions a member can ask here in a single day.
Seriously though, how come you manage to read so many topics in such short time every day? I see you ask a question in 2-4 hours and each question is on topics that are completely different from one another.
I think I should start to believe that you are a BOT. 
Regards,
Vijay.
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We didnt have any limit to ask questions  ,but we can learn new things with each question. 
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Hamid. wrote: We didnt have any limit to ask questions
And We will not have any limit in future either. I was just kidding when I said Chris should impose limit on the number of questions you can ask in a day.
Hamid. wrote: but we can learn new things with each question.
and that is the only reason why I lurk around here on CP.
Regards,
Vijay.
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Agree, Hamid!
You are a good person like to share learning resources with others.
regards,
George
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Hi Vijay,
I am a real person. I like this forum and programming. Is that enough.
regards,
George
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Thank you.
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Yes.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
[my articles]
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Thanks CPallini,
My question is answered.
regards,
George
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There's a really good website full of clever articles, and some are even helpful.
Hint (Begins with "C", and ends with "odeproject".
Have a look under Platforms, Frameworks & Libraries, then COM/COM+, then Beginners.
There are many articles there that explain COM. A good one to start with is a series called "COM in plain C". There are many parts.
Iain.
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Hi Iain,
Thanks for your recommendation.
Iain Clarke wrote: There's a really good website
Which web site do you mean? CodeProject?
regards,
George
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I think yes. 
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how can I draw PNG file on device context without using GDI+ in SDK(not MFC)
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CImage class is your answer.
CImage m;
m.Load("C:\\1.png");
m.BibtBlt(...);
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I thought CImage was a wrapper for GDI+ ?
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Why do you think GDI+ (i.e. Image class in this context) needs a wrapper?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
[my articles]
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Wrapper probably wasn't the best word to use. I just wanted to point out that GDI+ is used internally by CImage as the OP said they didn't want to use GDI+.
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Because the op didn't want to use GDI+ but CImage uses GDI+
for loading/saving files 
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://www.codeproject.com/script/Forums/Images/coffee.gif)
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Really I didnt know it.
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Hamid. wrote: Why?
Because of comments like this in the CImage documentation...
"Whenever the count goes to 0, the function GdiplusShutdown is automatically called to release resources used by GDI+. "
"to explicitly release resources used by GDI+."
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bob16972 wrote: I thought CImage was a wrapper for GDI+
Nah it's a wrapper for a DIBSection, using GDI+ for loading and saving
If I remember right...
Mark Salsbery
Microsoft MVP - Visual C++
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well, I probably shouldn't have used the word wrapper as I meant it uses GDI+ internally. I didn't mean to make it sound all inclusive.
The OP not wanting to use GDI+ was the purpose of my original response as you pointed out in your other post (in this thread). I glad somebody knew what I meant.
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Heh it doesn't matter - the whole topic is kind of
tongue-in-cheek for me anyway - I never get why people will use
Windows APIs but won't use GDI+....seems kind of silly
Cheers,
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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