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Marshal.Copy Method (Char[], Int32, IntPtr, Int32)

.NET Framework 4.5

Copies data from a one-dimensional, managed character array to an unmanaged memory pointer.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

static member Copy : 
        source:char[] * 
        startIndex:int * 
        destination:IntPtr * 
        length:int -> unit

Parameters

source: Type: System.Char[]
The one-dimensional array to copy from.

startIndex: Type: System.Int32
The zero-based index in the source array where copying should start.

destination: Type: System.IntPtr
The memory pointer to copy to.

length: Type: System.Int32
The number of array elements to copy.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	startIndex and length are not valid.
ArgumentNullException	startIndex, destination, or length is a null reference (Nothing in Visual Basic).

Remarks

You can use this method to copy a subset of a one-dimensional managed array to an unmanaged C-style array.

Examples

The following example copies an array to unmanaged memory and then copies the unmanaged array back to managed memory.

No code example is currently available or this language may not be supported.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET Framework Security

SecurityCriticalAttribute
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

Marshal Class

Copy Overload

System.Runtime.InteropServices Namespace

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