CriticalHandleMinusOneIsInvalid Class

CriticalHandleMinusOneIsInvalid Class

 

Provides a base class for Win32 critical handle implementations in which the value of -1 indicates an invalid handle.

Namespace:   Microsoft.Win32.SafeHandles
Assembly:  mscorlib (in mscorlib.dll)

System.Object
  System.Runtime.ConstrainedExecution.CriticalFinalizerObject
    System.Runtime.InteropServices.CriticalHandle
      Microsoft.Win32.SafeHandles.CriticalHandleMinusOneIsInvalid

[SecurityCriticalAttribute]
[SecurityPermissionAttribute(SecurityAction.InheritanceDemand, 
	UnmanagedCode = true)]
public abstract class CriticalHandleMinusOneIsInvalid : CriticalHandle

NameDescription
System_CAPS_protmethodCriticalHandleMinusOneIsInvalid()

Initializes a new instance of the CriticalHandleMinusOneIsInvalid class.

NameDescription
System_CAPS_pubpropertyIsClosed

Gets a value indicating whether the handle is closed.(Inherited from CriticalHandle.)

System_CAPS_pubpropertyIsInvalid

Gets a value that indicates whether the handle is invalid.(Overrides CriticalHandle.IsInvalid.)

NameDescription
System_CAPS_pubmethodClose()

Marks the handle for releasing and freeing resources.(Inherited from CriticalHandle.)

System_CAPS_pubmethodDispose()

Releases all resources used by the CriticalHandle. (Inherited from CriticalHandle.)

System_CAPS_protmethodDispose(Boolean)

Releases the unmanaged resources used by the CriticalHandle class specifying whether to perform a normal dispose operation.(Inherited from CriticalHandle.)

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Frees all resources associated with the handle.(Inherited from CriticalHandle.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodReleaseHandle()

When overridden in a derived class, executes the code required to free the handle.(Inherited from CriticalHandle.)

System_CAPS_protmethodSetHandle(IntPtr)

Sets the handle to the specified pre-existing handle.(Inherited from CriticalHandle.)

System_CAPS_pubmethodSetHandleAsInvalid()

Marks a handle as invalid.(Inherited from CriticalHandle.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_protfieldhandle

Specifies the handle to be wrapped.(Inherited from CriticalHandle.)

This class derives from the System.Runtime.InteropServices.CriticalHandle class. It describes the format of an invalid handle that uses a value of -1. Further derivations of this class (for example, file or registry handles) can specialize this further.

This type implements the IDisposable interface. When you have finished using the type, you should dispose of it either directly or indirectly. To dispose of the type directly, call its Dispose method in a try/catch block. To dispose of it indirectly, use a language construct such as using (in C#) or Using (in Visual Basic). For more information, see the “Using an Object that Implements IDisposable” section in the IDisposable interface topic.

System_CAPS_noteNote

See the CriticalHandle class for important information on critical handle security and thread safety.

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.

.NET Framework
Available since 2.0
Silverlight
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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