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




zoomInfo
ImGearZoomInfo object with new zoom attributes.

Glossary Item Box

Updates image zoom attributes.

Syntax

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

Parameters

zoomInfo
ImGearZoomInfo object with new zoom attributes.

Example

C#Copy Code
// Get the current Zoom settings
ImGearZoomInfo igZoomInfo =
    imGearPageView.Display.GetZoomInfo(imGearPageView);
// Change zoom to fixed to disable any current Fit modes.
igZoomInfo.Horizontal.Fixed = true;
igZoomInfo.Vertical.Fixed = true;
// Double the current zoom level.
igZoomInfo.Horizontal.Value *= 2;
igZoomInfo.Vertical.Value *= 2;
imGearPageView.Display.UpdateZoomFrom(igZoomInfo);
// Cause a redraw with the new zoom.
imGearPageView.Invalidate();
Visual BasicCopy Code
'Get the current Zoom settings
Dim igZoomInfo As ImGearZoomInfo = _
    ImGearPageView1.Display.GetZoomInfo(ImGearPageView1)
'Change zoom to fixed to disable any current Fit modes.
igZoomInfo.Horizontal.Fixed = True
igZoomInfo.Vertical.Fixed = True
'Double the current zoom level.
igZoomInfo.Horizontal.Value *= 2
igZoomInfo.Vertical.Value *= 2
ImGearPageView1.Display.UpdateZoomFrom(igZoomInfo)
'Cause a redraw with the new zoom.
ImGearPageView1.Invalidate()

See Also

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