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d3d9: Document a Microsoft header bug.

This commit is contained in:
Stefan Dösinger 2008-11-21 17:41:27 +01:00 committed by Alexandre Julliard
parent 4153fc1904
commit a1c460f8ae
1 changed files with 8 additions and 0 deletions
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8
include/d3d9.h
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@ -241,7 +241,15 @@ DECLARE_INTERFACE_(IDirect3D9Ex,IDirect3D9)
STDMETHOD_(ULONG,AddRef)(THIS) PURE;
STDMETHOD_(ULONG,Release)(THIS) PURE;
/*** IDirect3D9 methods ***/
/* Note: Microsoft's d3d9.h does not declare IDirect3D9Ex::RegisterSoftwareDevice . This would mean that
* the offsets of the other methods in the Vtable change too. This is wrong. In Microsoft's
* d3d9.dll, the offsets for the other functions are still compatible with IDirect3D9.
* This is probably because even in MS's header IDirect3D9Ex inherits from IDirect3D9, which makes the
* C++ inferface compatible, and nobody uses the C interface in Windows world.
*/
STDMETHOD(RegisterSoftwareDevice)(THIS_ void* pInitializeFunction) PURE;
STDMETHOD_(UINT, GetAdapterCount)(THIS) PURE;
STDMETHOD(GetAdapterIdentifier)(THIS_ UINT Adapter, DWORD Flags, D3DADAPTER_IDENTIFIER9* pIdentifier) PURE;
STDMETHOD_(UINT, GetAdapterModeCount)(THIS_ UINT Adapter, D3DFORMAT Format) PURE;