ECompositeViewer.IAdECompositeViewer CompositeViewer = (ECompositeViewer.IAdECompositeViewer)dwfAutodeskControl.ECompositeViewer;
EPlotViewer.IAdEPlotSection PlotSection;
ECompositeViewer.IAdSection SectionChk = (ECompositeViewer.IAdSection)CompositeViewer.Section;
ECompositeViewer.IAdSectionType SectionTypeChk = (ECompositeViewer.IAdSectionType)SectionChk.SectionType;
object targetPointX, targetPointY, newOriginX,newOriginY, currentViewLimitRight, currentViewLimitBottom, unused;

if (SectionTypeChk.Name == "com.autodesk.dwf.ePlot")
{
    PlotSection = (EPlotViewer.IAdEPlotSection)CompositeViewer.Section;
    
    Viewer.TransformPoint(0, CurrentView.Left, CurrentView.Top, 0, 2, out newOriginX, out newOriginY, out unused);
    Viewer.TransformPoint(0, simpleDrawingView.Left, simpleDrawingView.Top, 0, 2, out targetPointX, out targetPointY, out unused);
    Viewer.TransformPoint(0, CurrentView.Right, CurrentView.Bottom, 0, 2, out currentViewLimitRight, out currentViewLimitBottom, out unused);

    double topLeftT = double.Parse(targetPointX.ToString());
    double topTopT = double.Parse(targetPointY.ToString());

    double topLeftO = double.Parse(newOriginX.ToString());
    double topTopO = double.Parse(newOriginY.ToString());

    double currentViewRight = double.Parse(currentViewLimitRight.ToString());
    double currentViewBottom = double.Parse(currentViewLimitBottom.ToString());
}