Delegate OutputStreamClassData.WritevAsyncCallback
public delegate void OutputStreamClassData.WritevAsyncCallback(IntPtr stream, IntPtr vectors, nuint nVectors, int ioPriority, IntPtr cancellable, AsyncReadyCallback callback, IntPtr userData)
public delegate void OutputStreamClassData.WritevAsyncCallback(IntPtr stream, IntPtr vectors, nuint nVectors, int ioPriority, IntPtr cancellable, AsyncReadyCallback callback, IntPtr userData)