Класс WpfAnnotationViewerUndoMonitor
Монитор отмены, который отслеживает объект
WpfAnnotationViewer и добавляет действие отмены в диспетчер отмены, если
WpfAnnotationViewCollection изменен.
Вот C#/VB.NET код, который демонстрирует, как отслеживать изменения в аннотациях.
''' <summary>
''' Creates the undo monitor for annotation viewer.
''' </summary>
''' <param name="undoManager">The undo manager.</param>
''' <param name="annotationViewer">The annotation viewer.</param>
Public Shared Function CreateUndoMonitorForAnnotationViewer(undoManager As Vintasoft.Imaging.Undo.UndoManager, annotationViewer As Vintasoft.Imaging.Annotation.Wpf.UI.WpfAnnotationViewer) As Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor
' create the undo monitor for annotation viewer
Dim undoMonitor As New Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor(undoManager, annotationViewer)
' returns the undo monitor for annotation viewer
Return undoMonitor
End Function
/// <summary>
/// Creates the undo monitor for annotation viewer.
/// </summary>
/// <param name="undoManager">The undo manager.</param>
/// <param name="annotationViewer">The annotation viewer.</param>
public static Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor CreateUndoMonitorForAnnotationViewer(
Vintasoft.Imaging.Undo.UndoManager undoManager,
Vintasoft.Imaging.Annotation.Wpf.UI.WpfAnnotationViewer annotationViewer)
{
// create the undo monitor for annotation viewer
Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor undoMonitor =
new Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor(undoManager, annotationViewer);
// returns the undo monitor for annotation viewer
return undoMonitor;
}
System.Object
 Vintasoft.Imaging.Undo.UndoMonitor
   Vintasoft.Imaging.Wpf.UI.Undo.WpfImageViewerUndoMonitor
     Vintasoft.Imaging.Annotation.Wpf.UI.Undo.WpfAnnotationViewerUndoMonitor
Целевые платформы: .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5