Marshal.Copy Method (IntPtr, Int32, IntPtr, Int32)
Copies data from a one-dimensional, managed IntPtr array to an unmanaged memory pointer.
Assembly: mscorlib (in mscorlib.dll)
[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)] public static void Copy( IntPtr source, int startIndex, IntPtr destination, int length )
source, destination, startIndex, or length is null.
You can use this method to copy a subset of a one-dimensional .NET-based IntPtr array to an unmanaged C-style array.
This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.