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CriticalHandle::IsClosed Property

Gets a value indicating whether the handle is closed.

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

public:
property bool IsClosed {
	bool get ();
}

Property Value

Type: System::Boolean
true if the handle is closed; otherwise, false.

The IsClosed method returns a value indicating whether the CriticalHandle object's handle is no longer associated with a native resource. This differs from the definition of the IsInvalid property, which computes whether a given handle is always considered invalid. The IsClosed method returns a true value in the following cases:

.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

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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