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

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

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

'Declaration
Public Shared Sub Copy ( _
	source As IntPtr(), _
	startIndex As Integer, _
	destination As IntPtr, _
	length As Integer _
)
'Usage
Dim source As IntPtr()
Dim startIndex As Integer
Dim destination As IntPtr
Dim length As Integer

Marshal.Copy(source, startIndex, destination, length)
public static void Copy (
	IntPtr[] source, 
	int startIndex, 
	IntPtr destination, 
	int length
)
public static function Copy (
	source : IntPtr[], 
	startIndex : int, 
	destination : IntPtr, 
	length : int
)
Not applicable.

Parameters

source

The one-dimensional array to copy from.

startIndex

The zero-based index into the array where Copy should start.

destination

The memory pointer to copy to.

length

The number of array elements to copy.

Exception typeCondition

ArgumentNullException

source, destination, startIndex, or length is a null reference (Nothing in Visual Basic).

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

NoteNote:

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 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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