BeforeRotation Event (GdViewer)

In This Topic

This event is raised just before the global view of the viewer is going to rotate using the RotateView method or the displayed page is going to rotate using the Rotate method.

Please check the corresponded GdViewer.BeforeRotationEventHandler for given parameters.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Event BeforeRotation As GdViewer.BeforeRotationEventHandler

public event GdViewer.BeforeRotationEventHandler BeforeRotation

public event BeforeRotation: GdViewer.BeforeRotationEventHandler;

In JScript, you can handle the events defined by another class, but you cannot define your own.

public: __event GdViewer.BeforeRotationEventHandler* BeforeRotation

public:
event GdViewer.BeforeRotationEventHandler^ BeforeRotation

Example

How to add this event to your GdViewer control.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
Friend WithEvents GdViewer1 As GdPicture14.GdViewer
            
'Add the event.
AddHandler GdViewer1.BeforeRotation, AddressOf GdViewer1_BeforeRotation
            
'Define the event.
Sub GdViewer1_BeforeRotation(Rotation As RotateFlipType) Handles GdViewer1.BeforeRotation
    'Do your stuff here.
End Sub

//We assume that the GdViewer1 control has been properly integrated.
            
//Add the event.
GdViewer1.BeforeRotation += GdViewer1_BeforeRotation;
            
//Define the event.
void GdViewer1_BeforeRotation(RotateFlipType Rotation)
{
    //Do your stuff here.
}

Reference

GdViewer Class
GdViewer Members
GdViewer.BeforeRotationEventHandler Delegate