Marshal::ZeroFreeBSTR Method (IntPtr)

.NET Framework (current version)

Visual Studio 2010
.NET Framework 4
Visual Studio 2008
.NET Framework 3.5
.NET Framework 3.0
.NET Framework 2.0

Frees a BSTR pointer that was allocated using the SecureStringToBSTR method.

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

Syntax

public:
[SecurityCriticalAttribute]
static void ZeroFreeBSTR(
	IntPtr s
)

Parameters

s: Type: System::IntPtr
The address of the BSTR to free.

Remarks

The ZeroFreeBSTR method first sets the contents of the BSTR to zero, and then frees the BSTR.

Security

SecurityCriticalAttribute

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

Version Information

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1