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MSDN Library

Marshal.ZeroFreeBSTR Method

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

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

public static void ZeroFreeBSTR(
	IntPtr s
)

Parameters

s
Type: System.IntPtr

The address of the BSTR to free.

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1

Portable Class Library

Supported in: Portable Class Library

  • SecurityCriticalAttribute 

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

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