Overlapped.Free Method

Frees the unmanaged memory associated with a native overlapped structure allocated by the Pack method.

This API is not CLS-compliant. 

Namespace:  System.Threading
Assembly:  mscorlib (in mscorlib.dll)

[CLSCompliantAttribute(false)]
public static void Free(
	NativeOverlapped* nativeOverlappedPtr
)

Parameters

nativeOverlappedPtr
Type: System.Threading.NativeOverlapped*

A pointer to the NativeOverlapped structure to be freed.

ExceptionCondition
ArgumentNullException

nativeOverlappedPtr is null.

You must call the Free method exactly once on every NativeOverlapped pointer you receive from the Pack method. If you don't call the Free method, you will leak memory. If you call the Free method more than once, memory will be corrupted.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • SecurityCriticalAttribute 

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

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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