Thread: when do we need to define INC_OLE2?

Hello everyone,


When do we need to add code,

#define INC_OLE2

in our code? I can not find related information from MSDN.


thanks in advance,
George

When and where does the compiler ask for it?

Thanks Yarin,

Originally Posted by Yarin

When and where does the compiler ask for it?

Compiler is not asking for this. I am interested to learn. I read some other's code and sometimes they use #define INC_OLE2 and I want to know when do we need it and what is the function of INC_OLE2. Any ideas?


regards,
George

Thanks hk_mp5kpdw,

Originally Posted by hk_mp5kpdw

From my meager diggings...

You can manually include <ole2.h> in your application, or you can #define INC_OLE2 and then include <windows.h> and it (<ole2.h>) will be included for you. It simply seems to define whether or not including <windows.h> will also include <ole2.h>. If you don't define it before including <windows.h>, then it may or may not be loaded depending on other #define's that may be set.

I could be mistaken.

Your reply is very helpful. I think you mean if we want to include ole2.h, we should either include it directly or using,

1. #define INC_OLE2;
2. #include <windows.h>

Right?

What do you mean "If you don't define it before including <windows.h>, then it may or may not be loaded depending on other #define's that may be set."? I am confused about this sentence.


regards,
George