d3d9.dllLockAttributeBuffer
Microsoft DirectX 9.0 SDK Update (October 2004)

ID3DXPatchMesh::LockAttributeBuffer Method


Locks the attribute buffer.

Syntax

HRESULT LockAttributeBuffer(      

    DWORD flags,     DWORD **ppData );

Parameters

flags
[in] Combination of zero or more locking flags that describe the type of lock to perform. For this method, the valid flags are:
  • D3DLOCK_DISCARD
  • D3DLOCK_NO_DIRTY_UPDATE
  • D3DLOCK_NOSYSLOCK
  • D3DLOCK_READONLY

For a description of the flags, see D3DLOCK.

ppData
[out, retval] Address of a pointer to a buffer containing a DWORD for each face in the mesh.

Return Value

If the method succeeds, the return value is D3D_OK.

If the method fails, the return value can be one of the following values.

D3DERR_INVALIDCALLThe method call is invalid. For example, a method's parameter may have an invalid value.
E_OUTOFMEMORYMicrosoft Direct3D could not allocate sufficient memory to complete the call.


Remarks

The attribute buffer is usually locked, written to, and then unlocked for reading.



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