How do I pass a handle of DXGI shared resource to another process?

问题

https://msdn.microsoft.com/en-us/library/windows/desktop/bb174562(v=vs.85).aspx

According to the documentation of IDXGIResource::GetSharedHandle, I should be able to "marshal this handle to another process to share a resource with a device in another process".

But it's not clear how to pass this handle. Can I just pass the value of this handle to another process? Or do I need some specific method?

Thanks!

回答1:

Yes, you can pass this handle directly to another process and access it via OpenSharedResource function.

回答2:

Microsoft's documentation now suggests using CreateSharedHandle() instead of GetSharedHandle() and creating the texture with D3D11_RESOURCE_MISC_SHARED_NTHANDLE. I had to call DuplicateHandle() in order to pass the created HANDLE to another process to be opened with OpenSharedResource1().

来源：https://stackoverflow.com/questions/42527906/how-do-i-pass-a-handle-of-dxgi-shared-resource-to-another-process