Can help with classes?

UINT GetNodeTransform( INT *Obj, UINT hNode, Transform *Trans )
{
	__asm
	{
		MOV ECX, DWORD PTR DS:[ 0x379EF524 ]
		MOV EDX, DWORD PTR DS:[ ECX ]
		MOV EDX, DWORD PTR DS:[ EDX + 0x40 ]
		PUSH 1
		PUSH Trans
		PUSH hNode
		PUSH Obj
		CALL EDX
	}
}

usage:
struct Transform
{
	D3DXVECTOR3 Pos;
	unsigned char Space[0x100];
};

Transform HeadPosition;
GetNodeTransform( Player->Object /*Player Object*/, 8 /*Node Number*/, &HeadPosition /*Vec3 buffer*/ );