what does these lines mean??

[Cedric Moonen]

#pragma once is an include guard: the file will be included only once. This is similar has having the text in the file wrapped into a

#ifndef .....
#define

#endif

section. I think this pragma was not available in the first versions of the compiler (_MSC_VER), that is why it is wrapped into the #if/#endif section.

Cédric Moonen Software developer
Charting control [v3.0] OpenGL game tutorial in C++

[AmbiguousName]

and what is this??

_MSC_VER > 1000

[Cedric Moonen]

If the compiler version is higher than version 10 (not sure, you have to google to see how the versions are encoded), then the pragma is used.

Cédric Moonen Software developer
Charting control [v3.0] OpenGL game tutorial in C++

[Luc Pattyn]

functionality gets added to windows all the time, and data structures sometimes get expanded. To cope with these, Microsoft has one overall version number in _MSC_VER, which they use to have their header files adapt to the situation. Example: since Vista, the LVITEM struct has some new fields. :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, and improve readability.

[CPallini]

They hide it inside the documentation. --Led Mike

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.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

[Niklas L]

CPallini wrote:

They hide it inside the documentation.

Bastards!

home

[Cedric Moonen]

:-D BTW, it's been a very long time I didn't see him !

Cédric Moonen Software developer
Charting control [v3.0] OpenGL game tutorial in C++

[CPallini]

Sadly he left because of 'HOW TO ANSWER A QUESTION', see his profile page. :)

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.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

[Eytukan]

:-D

Starting to think people post kid pics in their profiles because that was the last time they were cute - Jeremy.

[vinoth8187]

:wtf: who boss...... ayyo ayyo yo:-D