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Marshal.ZeroFreeCoTaskMemUnicode Method

Frees an unmanaged string pointer that was allocated using the SecureStringToCoTaskMemUnicode method.

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

public static void ZeroFreeCoTaskMemUnicode(
	IntPtr s
)

Parameters

s
Type: System.IntPtr

The address of the unmanaged string to free.

The ZeroFreeCoTaskMemUnicode method first zeros out and then frees unmanaged memory that was allocated using the SecureStringToCoTaskMemUnicode method.

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0

.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

Supported in: Windows Phone 8.1

  • SecurityCriticalAttribute 

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

Windows Phone 8.1, Windows 8.1, Windows Server 2012 R2, 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.

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