Marshal.Copy Method (Int64, Int32, IntPtr, Int32)
May 11, 2014For apps that target Windows Phone OS 7.0 and 7.1, do not use any members of this type in your app. If you do, your code will throw a MethodAccessException. This type is security-critical, which restricts it to internal use by the .NET Framework for Windows Phone class library.
[SECURITY CRITICAL]Namespace: System.Runtime.InteropServices
Copies data from a one-dimensional, managed 64-bit signed integer array to an unmanaged memory pointer.
Assembly: mscorlib (in mscorlib.dll)
[SecurityCriticalAttribute] public static void Copy( long source, int startIndex, IntPtr destination, int length )