How to force reload linetypes from acad.lin

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Hi, I have a bunch of drawings for which I have to reload the linetypes (they have to be redefined, for example pneumatic line has a new definition but the drawing has an older one). Is there a way other than rename the old linetypes, then load the newer version, then iterate through all objects and change the linetype to the newer version?

Thanks,

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[Alexander.Rivilis]

You can use Database.LoadLineTypeFile method to load/reload linetypes and then Editor.Regen 

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Thank you very much.

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