InkCollectorCursorOutOfRangeEventHandler - делегат

Статья
11/04/2008

Обновлен: Ноябрь 2007

Represents the method that handles the CursorOutOfRange event of an InkCollector object.

Пространство имен: Microsoft.Ink
Сборка: Microsoft.Ink (в Microsoft.Ink.dll)

Синтаксис

'Декларация
Public Delegate Sub InkCollectorCursorOutOfRangeEventHandler ( _
    sender As Object, _
    e As InkCollectorCursorOutOfRangeEventArgs _
)
'Применение
Dim instance As New InkCollectorCursorOutOfRangeEventHandler(AddressOf HandlerMethod)

public delegate void InkCollectorCursorOutOfRangeEventHandler(
    Object sender,
    InkCollectorCursorOutOfRangeEventArgs e
)

public delegate void InkCollectorCursorOutOfRangeEventHandler(
    Object^ sender, 
    InkCollectorCursorOutOfRangeEventArgs^ e
)

/** @delegate */
public delegate void InkCollectorCursorOutOfRangeEventHandler(
    Object sender,
    InkCollectorCursorOutOfRangeEventArgs e
)

JScript не поддерживает делегаты.

Параметры

sender
Тип: System.Object
The source InkCollector object of this event.

e
Тип: Microsoft.Ink.InkCollectorCursorOutOfRangeEventArgs
The InkCollectorCursorOutOfRangeEventArgs object that contains the event data.

Заметки

When you create an InkCollectorCursorOutOfRangeEventHandler delegate, you identify the method that handles the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. The default event interest is on.

The CursorOutOfRange event fires even when in select or erase mode, not only when in ink mode. This requires that you monitor the editing mode (which you are responsible for setting) and be aware of the mode before interpreting the event. The advantage of this requirement is greater freedom to innovate on the platform through greater awareness of platform events.

Примеры

In this example, when the CursorOutOfRange event fires, the color of the last stroke to be created is changed to red.

Private Sub mInkObject_CursorOutOfRange(ByVal sender As Object, ByVal e As InkCollectorCursorOutOfRangeEventArgs)
    Using s As Strokes = mInkObject.Ink.Strokes
        If s.Count > 0 Then
            s(s.Count - 1).DrawingAttributes.Color = Color.Tomato
            ' redraw the ink canvas
            panelInkCanvas.Invalidate()
        End If
    End Using
End Sub

private void mInkObject_CursorOutOfRange(object sender, InkCollectorCursorOutOfRangeEventArgs e)
{
    using (Strokes S = mInkObject.Ink.Strokes)
    {
        if (S.Count > 0)
        {
            S[S.Count - 1].DrawingAttributes.Color = Color.Tomato;
            // redraw the ink canvas
            panelInkCanvas.Invalidate();
        }
    }
}

Платформы

Windows Vista

Среды .NET Framework и .NET Compact Framework поддерживают не все версии каждой платформы. Поддерживаемые версии перечислены в разделе Требования к системе для .NET Framework.