Provides a base class for Win32 safe handle implementations in which the value of either 0 or -1 indicates an invalid handle.
Assembly: mscorlib (in mscorlib.dll)
This class derives from the System.Runtime.InteropServices.SafeHandle class. It describes the format of an invalid handle. For example, some handles use -1 as an invalid handle value, while others use 0. Further derivations of this class (for example, file or registry handles) can specialize this further. See the SafeFileHandle class for an example of a class that derives from .
Use the class whenever you need to safely wrap an unmanaged resource that does not have an existing managed wrapper.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.