HRESULT GetMatrix(D3DMATRIXHANDLE lpD3DMatHandle,
LPD3DMATRIX lpD3DMatrix);
Retrieves a matrix from a matrix handle. This matrix handle must have been created by using the IDirect3DDevice::CreateMatrix method.
·Returns D3D_OK if successful, or an error otherwise, such as DDERR_INVALIDPARAMS.
lpD3DMatHandle
Address of a variable that contains the matrix to be retrieved.
lpD3DMatrix
Address of a D3DMATRIX structure that contains the matrix when the method returns.