ZoomMax Property (GdViewer)

In This Topic

Gets the highest zoom factor (maximal zoom) which can be used for the document displayed in the GdViewer control. The value of 1 represents the 100% zoom factor, 1.5 represents 150%, 2 represents the 200% zoom factor, etc.

Syntax

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

'Declaration
 
Public ReadOnly Property ZoomMax As Double

public double ZoomMax {get;}

public read-only property ZoomMax: Double;

public function get ZoomMax : double

public: __property double get_ZoomMax();

public:
property double ZoomMax {
   double get();
}

Property Value

The highest zoom factor. The default value is 1.

Remarks

Be aware that this property is only meaningful if some document is displayed in the GdViewer control. Otherwise, the resulting value is 0.

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

Example

How to determine the maximal zoom factor for the document displayed in the viewer.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
            
'Determine the maximal zoom for the displayed document.
Dim z As Short = (Math.Round(GdViewer1.ZoomMax * 100))
MessageBox.Show("The maximal zoom is " + z.ToString() + "%.", "GdViewer.ZoomMax")

//We assume that the GdViewer1 control has been properly integrated.
            
//Determine the maximal zoom for the displayed document.
short z = (short)(Math.Round(GdViewer1.ZoomMax * 100));
MessageBox.Show("The maximal zoom is " + z.ToString()+ "%.", "GdViewer.ZoomMax");

Reference

GdViewer Class
GdViewer Members
Zoom Property
ZoomStep Property
ZoomIN Method
ZoomOUT Method