ImageGear for .NET
HandleUpdate Method
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ImageGear21.Core Assembly > ImageGear.Display Namespace > ImGearPageDisplay Class : HandleUpdate Method

pageView: 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

Visual Basic

Managed Extensions for C++

C++/CLI

'Declaration
 
Public Sub HandleUpdate( _
   ByVal pageView As IImGearScrollableView _
)

'Usage
 
Dim instance As ImGearPageDisplay
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.

Syntax

Parameters

Remarks

See Also

Reference