Zoom to a specific location in ArcMap Viewer window using ArcObjects

Question

I'm trying to find out how to open Viewer window (menu Windows->Viewer in ArcMap) programmatically and zoom it to a specific location. This is how I can open it:

IDataWindowFactory dwf = new MapViewerWindowFactoryClass();
IDataWindow dw = dwf.Create(mArcMap); // typeof mArcMap is IApplication

and to show it:

dw.Show(true);

but I can't find a way to set the initial extent when opening the viewer window or at least how to change it after it is loaded.

enter image description here

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Problem solved by using IMapInsetWindow interface.

IDataWindow2 dw = this.createDataWindow(new MapViewerWindowFactoryClass());
IMapInsetWindow mapInset = dw as IMapInsetWindow;
mapInset.MapInset.VisibleBounds = extent;
dw.Show(true);

Answer 1

Below is some code in VBA that shows how to set the extent of the viewer window to the current map. The key interface is IMapInsetWindow which gives you access to the IMapInset2 and it's read/write properties.

Public Sub updateMapView()
 ' Get map document
 Dim pMXDoc As IMxDocument
 Set pMXDoc = ThisDocument
 ' Get Map
 Dim pMap As IMap
 Set pMap = pMXDoc.FocusMap
 ' Get the active view of the map
 Dim pActiveView As IActiveView
 Set pActiveView = pMap
 ' Get extent of map
 Dim pEnvelope As IEnvelope
 Set pEnvelope = pActiveView.Extent
 ' Get Application
 Dim pApp As IApplication
 Set pApp = Application
 ' Create Factory
 Dim pDataWindowFactory As IDataWindowFactory
 Set pDataWindowFactory = New MapViewerWindowFactory
 ' Create MapViewer Window and open it
 Dim pDataWindow As IDataWindow2
 Set pDataWindow = pDataWindowFactory.Create(pApp)
 pDataWindow.Show True
 ' Cast DataWindow into MapInsetWindow
 Dim pMapInsetWindow As IMapInsetWindow
 Set pMapInsetWindow = pDataWindow
 ' Set the extent of the InsetWindow to the current map Extent
 pMapInsetWindow.MapInset.VisibleBounds = pEnvelope
End Sub

• Bogdan Hristozov: Thanks, thats great! I actually saw a similar answer but thought that IMapInsetWindow class is used only for managing the Magnifier window and not for the Viewer window, which I want to use.