Is this yet possible?
If you have a reference to the DrawingView object then you may solve this problem in four steps.
1) Property DrawingView.ReferencedDocumentDescriptor returns the model document referenced by this view. In your case this should be an assembly document.
2) You may scan assembly hierarchy to find referenced components.
3) Magic property DrawingView.DrawingCurves(referenced ComponentOccurrence) returns DrawingCurvesEnumerator with all drawing curves within the drawing view from this particular component occurrence.
4) If Count >0 then you may change properties of the DrawingCurve objects found to satisfy your requirements (line type, line weight, etc.). Or change Layer property of all DrawingCurveSegment objects in the collection DrawingCurve.Segments() .
Should this work for you?
Changing the layer properties will indeed make these lines appear solid rather than the phantom lines, but I believe that hidden line calculation will still need to be set in order for these items to appear properly. I will try this when I have a free moment and see if this is the case.
DrawingCurveSegment.HiddenLine can returns whether this segment represents the hidden portion of a line
DrawingCurveSegment.Layer can set the layer associated with this segment.
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