ZoomMode Property (GdViewer)

In This Topic

Gets or sets the current zoom mode used by the GdViewer control and refreshes the control as well.

If the newly specified ZoomMode value is the same as the current ZoomMode value, this method does nothing.

Syntax

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

'Declaration
 
Public Property ZoomMode As ViewerZoomMode

public ViewerZoomMode ZoomMode {get; set;}

public read-write property ZoomMode: ViewerZoomMode;

public function get,set ZoomMode : ViewerZoomMode

public: __property ViewerZoomMode get_ZoomMode();
public: __property void set_ZoomMode( 
   ViewerZoomMode value
);

public:
property ViewerZoomMode ZoomMode {
   ViewerZoomMode get();
   void set (    ViewerZoomMode value);
}

Property Value

The default value is ViewerZoomMode.ZoomMode100.

Remarks

Be aware that the control is refreshed immediately when changing the ZoomMode property value.

You can also change this property using the SetZoom... methods.

Both the BeforeZoomChange and the AfterZoomChange events are raised when changing the property value.

Please try the Document Viewer Sample here to find out, how to utilize zooming features in your application.

Example

How to change the current zoom mode.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
            
'Determine the current zoom mode.
MessageBox.Show("The current zoom mode is " + GdViewer1.ZoomMode.ToString() + ".", "GdViewer.ZoomMode")
'Set the required zoom mode. The viewer will refresh.
GdViewer1.ZoomMode = ViewerZoomMode.ZoomModeFitToViewer

//We assume that the GdViewer1 control has been properly integrated.
            
//Determine the current zoom mode.
MessageBox.Show("The current zoom mode is " + GdViewer1.ZoomMode.ToString()+ ".", "GdViewer.ZoomMode");
//Set the required zoom mode. The viewer will refresh.
GdViewer1.ZoomMode = ViewerZoomMode.ZoomModeFitToViewer;

Reference

GdViewer Class
GdViewer Members
SetZoom100 Method
SetZoomFitViewer Method
SetZoomViewer Method