Paramter conversion help.

// Load the mesh.
	ID3DXBuffer *materialBuffer, *adjacencyBuffer;
	D3DXLoadMeshFromX( GetFilename(), D3DXMESH_MANAGED, g_engine->GetDevice(), &adjacencyBuffer, &materialBuffer, NULL, &m_staticMesh->NumMaterials, &tempMesh );


	// Get the vertex declaration for the NMapVertex.
	D3DVERTEXELEMENT9 elems[MAX_FVF_DECL_SIZE];
	UINT numElems = 0;
	NMapVertex::Decl->GetDeclaration(elems, &numElems);

	// Clone the mesh to the NMapVertex format.
	ID3DXMesh* clonedTempMesh = 0;
	tempMesh->CloneMesh(D3DXMESH_MANAGED, elems, g_engine->GetDevice(), &clonedTempMesh);

	// Now use D3DXComputeTangentFrameEx to build the TNB-basis for each vertex
	// in the mesh.  
	
	D3DXComputeTangentFrameEx(
	  clonedTempMesh, // Input mesh
	  D3DDECLUSAGE_TEXCOORD, 0, // Vertex element of input tex-coords.  
      D3DDECLUSAGE_BINORMAL, 0, // Vertex element to output binormal.
	  D3DDECLUSAGE_TANGENT, 0,  // Vertex element to output tangent.
      D3DDECLUSAGE_NORMAL, 0,   // Vertex element to output normal.
      0, // Options
      0, // Adjacency
	  0.01f, 0.25f, 0.01f, // Thresholds for handling errors
	  m_staticMesh->originalMesh, // Output mesh
	  0);         // Vertex Remapping
	
	SAFE_RELEASE( tempMesh );
	SAFE_RELEASE( clonedTempMesh );
	
	
	// Optimise the mesh for better rendering performance.
	m_staticMesh->originalMesh->OptimizeInplace( D3DXMESHOPT_COMPACT | D3DXMESHOPT_ATTRSORT | D3DXMESHOPT_VERTEXCACHE, (DWORD*)adjacencyBuffer->GetBufferPointer(), NULL, NULL, NULL );

 struct NMapVertex
{
	D3DXVECTOR3 pos;
	D3DXVECTOR3 tangent;
	D3DXVECTOR3 binormal;
	D3DXVECTOR3 normal;
	D3DXVECTOR2 tex0;

	static IDirect3DVertexDeclaration9* Decl;
};