ContextItemManager.Subscribe Method (Type, SubscribeContextCallback)

When overridden in a derived class, adds a callback that is invoked when a context item of the specified item type changes.

Namespace: Microsoft.Windows.Design
Assembly: Microsoft.Windows.Design.Extensibility (in Microsoft.Windows.Design.Extensibility.dll)

Syntax

'Declaration
Public MustOverride Sub Subscribe ( _
    contextItemType As Type, _
    callback As SubscribeContextCallback _
)

public abstract void Subscribe(
    Type contextItemType,
    SubscribeContextCallback callback
)

public:
virtual void Subscribe(
    Type^ contextItemType, 
    SubscribeContextCallback^ callback
) abstract

abstract Subscribe : 
        contextItemType:Type * 
        callback:SubscribeContextCallback -> unit

public abstract function Subscribe(
    contextItemType : Type, 
    callback : SubscribeContextCallback
)

callback
Type: Microsoft.Windows.Design.SubscribeContextCallback
A callback that will be invoked when contextItemType changes.

Exception	Condition
ArgumentNullException	contextItemType or callback is nulla null reference (Nothing in Visual Basic).

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.