ContextNodeBase.Confirm - метод
Обновлен: Ноябрь 2007
Sets the confirmation type, which restricts what the InkAnalyzerBase can change about the node.
Пространство имен: System.Windows.Ink.AnalysisCore
Сборка: IACore (в IACore.dll)
Синтаксис
'Декларация
Public Sub Confirm ( _
type As ConfirmationType _
)
'Применение
Dim instance As ContextNodeBase
Dim type As ConfirmationType
instance.Confirm(type)
public void Confirm(
ConfirmationType type
)
public:
void Confirm(
ConfirmationType type
)
public void Confirm(
ConfirmationType type
)
public function Confirm(
type : ConfirmationType
)
Параметры
- type
Тип: System.Windows.Ink.AnalysisCore.ConfirmationType
The ConfirmationType that is applied to the node.
Заметки
Use Confirm to enable the end user to confirm that the InkAnalyzerBase has correctly analyzed the strokes. After Confirm has been called, the InkAnalyzerBase will not change the ContextNodeBase objects for those strokes during later analysis.
For example, if the end user writes the word "to" and then your application calls Analyze, the InkAnalyzerBase will create an InkWord node with the value of "to". If the end user then adds "me" after "to" as one word and the application makes another call to Analyze, the InkAnalyzerBase would likely create one InkWord node with the value "tome". However, if after the first call to Analyze, the application calls Confirm on the InkWord node for "to" with the value NodeTypeAndProperties, a different behavior occurs. When the end user adds the "me" and the application makes another call to Analyze, the "to" node is not changed. The InkAnalyzerBase would recognize two InkWord nodes for "to me".
You can confirm only ContextNodeBase objects of type InkWord and InkDrawing. If you attempt to call Confirm on a node that is not a leaf node, an InvalidOperationException is thrown.
If you call InkAnalyzerBase.RemoveStroke, the ContextNodeBase object is automatically set to unconfirmed if the stroke being removed is related to a confirmed ContextNodeBase object.
SetStrokes, SetStrokeType, and SetStrokesType throws an InvalidOperationException if the ContextNodeBase object is already confirmed. ReparentStrokes throws the exception if either source or destination node is confirmed.
Примеры
The following example is an event handler for the MouseUp event on a Panel, theNotesPanel, which is collecting ink through an InkCollector named theInkCollector. The application has a Boolean value named confirmMode, which is set by a MenuItem named confirmMenuItem. When in "confirm" mode, the user clicks on a word to confirm it (or to turn off confirmation if the node is already confirmed). The example converts the mouse up event into ink coordinates, using HitTest and FindNodesOfType to find the appropriate nodes. After the nodes are found, Confirm is called to toggle the confirmation. Finally, the application is taken out of "confirm" mode.
Private Sub theNotesPanel_MouseUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles theNotesPanel.MouseUp
If Me.confirmMode = True Then
' Translate coordinates into ink dimensions
Dim hitPoint As New Point(e.X, e.Y)
Dim panelGraphics As Graphics = Me.theNotesPanel.CreateGraphics()
Me.theInkCollector.Renderer.PixelToInkSpace(panelGraphics, hitPoint)
panelGraphics.Dispose()
' Find the strokes that the user selected
Dim selectedStrokes As Strokes = Me.theInkCollector.Ink.HitTest(hitPoint, 10)
' The integer array must be exactly the right size. Arrays
' begin at zero, so the upper bound is selectedStrokes.Count - 1.
Dim selectedStrokeIds(selectedStrokes.Count - 1) As Integer
For i As Integer = 0 To selectedStrokes.Count - 1
selectedStrokeIds(i) = selectedStrokes(i).Id
Next
' Find the ink word nodes that correspond to those strokes
Dim selectedNodes As ContextNodeBaseCollection = _
Me.theInkAnalyzerBase.FindNodesOfType(System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord, _
selectedStrokeIds)
' Toggle the confirmation type on these nodes
Dim selectedNode As ContextNodeBase
For Each selectedNode In selectedNodes
If selectedNode.IsConfirmed( _
Windows.Ink.AnalysisCore.ConfirmationType.NodeTypeAndProperties) Then
selectedNode.Confirm(System.Windows.Ink.AnalysisCore.ConfirmationType.None)
Else
selectedNode.Confirm(System.Windows.Ink.AnalysisCore.ConfirmationType.NodeTypeAndProperties)
End If
Next selectedNode
' No longer in "confirm" mode
Me.confirmMode = False
Me.ConfirmMenuItem.Checked = False
Me.theInkCollector.Enabled = True
End If
End Sub
private void theNotesPanel_MouseUp(object sender, MouseEventArgs e)
{
if (this.confirmMode)
{
// Translate coordinates into ink dimensions
Point hitPoint = new Point(e.X, e.Y);
Graphics panelGraphics = this.theNotesPanel.CreateGraphics();
this.theInkCollector.Renderer.PixelToInkSpace(panelGraphics, ref hitPoint);
panelGraphics.Dispose();
// Find the strokes that the user selected
Strokes selectedStrokes = this.theInkCollector.Ink.HitTest(hitPoint, 10);
int[] selectedStrokeIds = new int[selectedStrokes.Count];
for (int i = 0; i < selectedStrokes.Count; i++)
{
selectedStrokeIds[i] = selectedStrokes[i].Id;
}
// Find the ink word nodes that correspond to those strokes
ContextNodeBaseCollection selectedNodes =
this.theInkAnalyzerBase.FindNodesOfType(System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord,
selectedStrokeIds);
// Toggle the confirmation type on these nodes
foreach (ContextNodeBase selectedNode in selectedNodes)
{
if (selectedNode.IsConfirmed(
System.Windows.Ink.AnalysisCore.ConfirmationType.NodeTypeAndProperties))
{
selectedNode.Confirm(System.Windows.Ink.AnalysisCore.ConfirmationType.None);
}
else
{
selectedNode.Confirm(System.Windows.Ink.AnalysisCore.ConfirmationType.NodeTypeAndProperties);
}
}
// No longer in "confirm" mode
this.confirmMode = false;
this.confirmMenuItem.Checked = false;
this.theInkCollector.Enabled = true;
}
}
Платформы
Windows Vista, Windows XP с пакетом обновления 2 (SP2), Windows Server 2003
Среды .NET Framework и .NET Compact Framework поддерживают не все версии каждой платформы. Поддерживаемые версии перечислены в разделе Требования к системе для .NET Framework.
Сведения о версии
.NET Framework
Поддерживается в версии: 3.0