(Leadtools.Controls)
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InteractiveService Class
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public class InteractiveService
Public Class InteractiveService
public sealed class InteractiveService
iOS:
@interface LTInteractiveService : NSObject<LTBasicGestureRecognizerDelegate>
OS X:
@interface LTInteractiveService : NSObject
public class InteractiveService
function Leadtools.Controls.InteractiveService()
The InteractiveService object hooks to the target framework element TargetElement and starts listening to the events like tap, drag, hold, double tap and drag events.
ImageViewer contains an instance of InteractiveService internally (accessible through the ImageViewer.InteractiveService property) and use it along with the ImageViewerInteractiveMode classes to perform rich interactive user interface interactions such as zoom, pan, scale, rubber banding and magnify glass.
To use the InteractiveService, call the InteractiveService Constructor(FrameworkElement,FrameworkElement) constructor. The events of the target framework element will be subscribed to and converted from raw mouse and tap to the common events mentioned above. All coordinates will be translated based on its position.
InteractiveService contains the following members:
| Members | Description |
|---|---|
| Owner |
The owner of the service. This is not used by InteractiveService but can be used by the application to pass any class and extra data. ImageViewer passes |
| TargetElement |
The target element. |
| StartListening, StopListening and IsListening |
Subscribe/Unsubscribe to the events |
| Tap, DoubleTap, Hold, DragStarted, DragDelta and DragCompleted |
Uniform events for common user interface interaction regardless of the event source (mouse or touch) |
InteractiveService will subscribe to multiple Windows Runtime events. It is recommended if you create an instance of this object to call Dispose on it when you are done to free the resources used.
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