GdPicture.NET.14
GdPicture14.WPF Namespace / GdViewer Class / PreviewRegionSelected Event





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PreviewRegionSelected Event
In This Topic
This event is raised when a highlighted region has been selected by a user using the mouse.

The event makes use of tunel routing strategy. Please check the corresponded GdViewer.RegionSelectedEventArgs for given parameters.

Highlighted regions for currently displayed document are identified and created when searching text, for example using the SearchText(String,Int32,Boolean) method or the second similar overloaded method as well. You can also define highlighted regions directly using the AddRegion(String,Double,Double,Double,Double,Color,RegionFillMode) method.

Syntax
'Declaration
 

Public Event PreviewRegionSelected As GdViewer.PreviewRegionSelectedHandler
 
Event Data

The event handler receives an argument of type GdViewer.RegionSelectedEventArgs containing data related to this event. The following GdViewer.RegionSelectedEventArgs properties provide information specific to this event.

PropertyDescription
Handled (Inherited from System.Windows.RoutedEventArgs)
OriginalSource (Inherited from System.Windows.RoutedEventArgs)
RegionIDThe unique region identifier of the highlighted region selected by a user.  
RoutedEvent (Inherited from System.Windows.RoutedEventArgs)
Source (Inherited from System.Windows.RoutedEventArgs)
Remarks
Be aware that the RegionsAreEditable property needs to be turned on to enable the region selection.
Example
Please follow the example for the RegionSelected event to motivate yourself on how to utilize this event in your GdViewer control.
See Also

Reference

GdViewer Class
GdViewer Members
GdViewer.PreviewRegionSelectedHandler Delegate
GdViewer.RegionSelectedEventArgs Class
RegionSelected Event
PreviewRegionEdited Event
RegionEdited Event
RegionsAreEditable Property

 

 

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