CODEWITHSUNDEEP
c++guiduuiddeclspec
anbuf
anbuf

Reputation: 91

GUID explanation - C++

I use a sample from windows to learn DirectShow, and in a class I have this code in the header file:

struct __declspec(uuid("{71771540-2017-11cf-ae26-0020afd79767}")) CLSID_TextureRenderer;

And this line in the cpp file:

CTextureRenderer::CTextureRenderer(LPUNKNOWN unk, HRESULT *hr): CBaseVideoRenderer(__uuidof(CLSID_TextureRenderer), "Texture Renderer", unk, hr)

Can you explain me how that all things work together?

Thank a lot.

Upvotes: 0

Views: 1035

Answers (1)

hamstergene
hamstergene

Reputation: 24439

This is Microsoft Visual C++ extension to C++, to aid COM programming. __declspec(uuid()) associates GUID structure with a class, and __uuidof yields GUID value of a given type/expression.

Upvotes: 2

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