ImageGear .NET v25.0 - Updated
HandleUpdate Method (ImGearPresentationPageDisplay)




ImageGear.Presentation Assembly > ImageGear.Display Namespace > ImGearPresentationPageDisplay Class : HandleUpdate Method
IImGearScrollableView page view control to draw image in.
Handles update event. This handler is called synchronously by page view control, when its Update() method is called.
Syntax
'Declaration
 
Public Sub HandleUpdate( _
   ByVal pageView As IImGearScrollableView _
) 
'Usage
 
Dim instance As ImGearPresentationPageDisplay
Dim pageView As IImGearScrollableView
 
instance.HandleUpdate(pageView)
public void HandleUpdate( 
   IImGearScrollableView pageView
)
public: void HandleUpdate( 
   IImGearScrollableView* pageView
) 
public:
void HandleUpdate( 
   IImGearScrollableView^ pageView
) 

Parameters

pageView
IImGearScrollableView page view control to draw image in.
Remarks
The Update() method of page view control can make updates to the page display asynchronously. It means, that some parameters of the page display may be incorrect immediately after calling the Update() method of page view. As a result some methods, such as GetZoomInfo may return incorrect results.

This method synchronizes the internal data structures. Any custom page viewer, which implements IImGearScrollableView interface, should call this handler from Update() method to allow the page display to update some internal parameters synchronously.

See Also

Reference

ImGearPresentationPageDisplay Class
ImGearPresentationPageDisplay Members