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SafeHandle Constructor (IntPtr, Boolean)

Initializes a new instance of the SafeHandle class with the specified invalid handle value.

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

new : 
        invalidHandleValue:IntPtr * 
        ownsHandle:bool -> SafeHandle

Parameters

invalidHandleValue
Type: System.IntPtr

The value of an invalid handle (usually 0 or -1). Your implementation of IsInvalid should return true for this value.

ownsHandle
Type: System.Boolean

true to reliably let SafeHandle release the handle during the finalization phase; otherwise, false (not recommended).

ExceptionCondition
TypeLoadException

The derived class resides in an assembly without unmanaged code access permission.

If the ownsHandle parameter is false, ReleaseHandle is never called; thus, it is not recommended to use this parameter value as your code may leak resources.

.NET Framework

Supported in: 4.5, 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

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

  • InheritanceDemand 

    for full trust for inheritors. This member cannot be inherited by partially trusted code.

  • SecurityCriticalAttribute 

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

Windows Phone 8.1, Windows Phone 8, 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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