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what is a DWORD_PTR?

Wed, 30 Nov 2005 12:59:11 -0700

Hi,

I'm running MS Visual C++ 6.0 and I've just downloaded the DirectX 9 SDK from microsoft.com. Now, whenever I try and compile some programs I get the error message from all of the newly installed ".h" files that contains references to a type called DWORD_PTR. For example, the following code

typedef DWORD_PTR HSEMAPHORE;

generates the error

missing ';' before identifier 'HSEMAPHORE'

I can solve the problem by adding the following line before all my "#include" statements:

typedef unsigned long;

but I still get the same for other types (e.g. LONG_PTR). Is there a header file I can include which will define all these new types that are used by the WinAPI?

Thanks in advance,
Dan

Re: what is a DWORD_PTR?

Mon, 05 Dec 2005 10:41:24 -0700

: Hi,
:
: I'm running MS Visual C++ 6.0 and I've just downloaded the DirectX 9 SDK from microsoft.com. Now, whenever I try and compile some programs I get the error message from all of the newly installed ".h" files that contains references to a type called DWORD_PTR. For example, the following code
:

typedef DWORD_PTR HSEMAPHORE;

generates the error
:

missing ';' before identifier 'HSEMAPHORE'

: I can solve the problem by adding the following line before all my "#include" statements:

typedef unsigned long;

but I still get the same for other types (e.g. LONG_PTR). Is there a header file I can include which will define all these new types that are used by the WinAPI?
:
: Thanks in advance,
: Dan
:
I found an article in MSDN that state this is defined in public\sdk\inc\basetsd.h
Try adding that to your include path

Re: what is a DWORD_PTR?

Tue, 06 Dec 2005 09:11:37 -0700

Thanks for your help. VC++ 6.0 does come with an older version of basetsd.h (which is in fact where these types are now declared ) I just downloaded the latest version of basetsd.h and now my code compiles just fine. Thank you!