@ stdcall DrmAddContentHandlers(long ptr long)
@ stdcall DrmCreateContentMixed(ptr long ptr)
@ stdcall DrmDestroyContent(long)
@ stdcall DrmForwardContentToDeviceObject(long ptr ptr)
@ stdcall DrmForwardContentToFileObject(long ptr)
@ stdcall DrmForwardContentToInterface(long ptr long)
@ stdcall DrmGetContentRights(long ptr)