Migrating from 9.3.1 to 10 may be impossible if you use mapcontrols in ArcMap

Question

Hello,
Looks like our organization has been left high and dry.  We are converting 9.3.1 ArcObjects code for an ArcMap customization that uses overview maps on a seperate form.  These overview maps are ESRI MapControls.  They only run inside ArcMap.  At ArcGIS 9.3.1 it is possible to add these map controls to your VS project.  After migrating to ArcGIS 10, to edit the mapcontrols in VS studio you now need an ArcGIS Engine SDK license, even if the application is not Engine and even if previous versions of ArcGIS desktop did not require this.  
We are left a choice between rolling back to ArcGIS 9.3.1 or acquiring 8 EDN licenses and rolling back to ArcGIS 9.3.1 until we can get the licenses.
That is my rant.

AlexanderGray · Answer

Thanks Neil,
The creategraphics is the part I got wrong.  I was passing the handle of the control to the draw.  That is a level deeper than I usually work at.

NeilClemmons_GISinc · Answer

I managed to find time to give this a quick try in .NET.  I placed a Panel on a form to use as the map canvas.  Here's the code I added to the form class.  I didn't have time to run any real tests or create any custom tools to zoom, pan, etc. but it seems to work fairly well.  The scroll bars don't work properly - clicking the arrows pans the map but grabbing the scroll bar with the mouse doesn't.Public Class MapDialog

Private m_activeView As IActiveView

Private Sub LoadMapButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LoadMapButton.Click
        Try
            Dim path As String = "C:\Development\ApplicationTest\Mxd\Quantico.mxd"

Dim mapDoc As IMapDocument = New MapDocument
            mapDoc.Open(path)

Dim map As IMap = mapDoc.Map(0)

Dim activeView As IActiveView = DirectCast(map, IActiveView)
            activeView.Activate(Panel1.Handle.ToInt32)

m_activeView = activeView
        Catch ex As Exception
            MessageBox.Show(ex.ToString)
        End Try
    End Sub

Private Sub Panel1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint
        If m_activeView Is Nothing Then Return

m_activeView.Draw(Panel1.CreateGraphics.GetHdc.ToInt32, Nothing)
    End Sub

End Class

AlexanderGray · Answer

Thanks Neil,
The idea of creating my own custom map control is very helpful.  I managed to add a raster layer to a map and set the display to a form.  The only problem I get is the refresh.  I put the activeview.draw call in the on_paint event but it seams after the form loads or if it loses focus or if I resize, it only draws the image if I tinker with the scroll bars that show up on my form...
I did all the license stuff in the project start-up and shutdown.