CODEWITHSUNDEEP
c++windows-runtimedirectx-11
Johan Falk
Johan Falk

Reputation: 4359

WinRT C++ ComPtr GetAddressOf vs &

I just got started with DirectX 11.1 for Windows 8 apps and I got the following ComPtr for example:

ComPtr<ID3D11Buffer> constantBuffer;

What I wonder is, what is the difference between using &constantBuffer and constantBuffer.GetAddressOf()?

Sometimes they both works fine, but sometimes using &constantBuffer will cause my program to crash with an access violation.

Upvotes: 6

Views: 2903

Answers (1)

nothrow
nothrow

Reputation: 16168

Did you read documentation?

GetAddressOf - Retrieves the address of the ptr_ data member, which contains a pointer to the interface represented by this ComPtr.

Operator& - Releases the interface associated with this ComPtr object and then retrieves the address of the ComPtr object.

Upvotes: 7

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