Hi Whiteley,
It is possible to create clean drawing on creating addin.
In StandardAddInServer.vb file, there is a method/function called as Activate(....). Inside this, a DrawingDocument can be initialized as shown in the following.
Public Sub Activate(ByVal addInSiteObject As Inventor.ApplicationAddInSite, ByVal firstTime As Boolean) Implements Inventor.ApplicationAddInServer.Activate
m_inventorApplication = addInSiteObject.Application
Dim oDrawingDoc As DrawingDocument
oDrawingDoc = m_inventorApplication.Documents.Add(DocumentTypeEnum.kDrawingDocumentObject, oTemplate, True)
End Sub
After starting inventor, a drawing document will be opened without any prompt.
Please feel free to contact if there is any doubt.
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Thanks and regards,
CHANDRA SHEKAR G
Developer Advocate
Autodesk Developer Network