Function SaferComputeTokenFromLevel 

pub unsafe fn SaferComputeTokenFromLevel(
    levelhandle: SAFER_LEVEL_HANDLE,
    inaccesstoken: Option<HANDLE>,
    outaccesstoken: *mut HANDLE,
    dwflags: SAFER_COMPUTE_TOKEN_FROM_LEVEL_FLAGS,
    lpreserved: Option<*mut c_void>,
) -> Result<()>