Hi! I'm using Visual C++ 2005 Express Edition and I am trying to create an application that uses DirectSound. I found on DirectSound Documentation how to initiate it, but I still have some problems.

When I initiate last member of DSBUFFERDESC (the struct that describes the characteristics of a new buffer), i get this error:
 
1>main.obj : error LNK2019: unresolved external symbol _GUID_NULL referenced in function "void __cdecl InitDirectSound(struct HWND__ *)" (?InitDirectSound@@YAXPAUHWND__@@@Z)

Here is the code, where "GUID_NULL" (which is defined in dsound.h) appears:

DSBUFFERDESC pcDSPrimaryBufferDesc;

pcDSPrimaryBufferDesc.guid3DAlgorithm=GUID_NULL;

 
On my project Propetries>>Configuration Propetries>>Linker>>Input>>ADDITIONAL DEPENDENCIES I added dsound.lib (and also dxguid.lib), but on DirectX Documentation it says that some DirectSound functions use Dsound3d.dll as import library.

Where should I add it? what did I missed? Thank you in advance!

That shoudl take care of it. If it doesn't, then you can just set it with memset(, 0,) or ZeroMemory() instead.

I finally managed to resolve that linking error (adding some extra .lib-s on Additional Dependencies), but now I get another one.
When I am using  mmioOpen() function in order to import a wav file, although I've added "Winmm.lib" (and some more, as I've seen in a project called "PlaySound" from Microsoft DirectX SDK), I get this:

 

1>main.obj : error LNK2019: unresolved external symbol __imp__mmioOpenA@12 referenced in function "void __cdecl InitDirectSound(struct HWND__ *)" (?InitDirectSound@@YAXPAUHWND__@@@Z)

Here is the code:

HMMIO hWav;

hWav =mmioOpen(

"test.wav", NULL, MMIO_READ | MMIO_ALLOCBUF);

 

Moreover, if I somehow resolve this error, is it really the best way to import a wave file by using mmioOpen() and its "company" or not...? ... Or should I use OpenAL instead of DirectX? (I need MINIMUM delay of sound...)

Thanks a lot!