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How to overwrite the display function of TemplateBox? For example, if I have: 

NotebookWrite[InputNotebook[],  ToBoxes@Quantity[3, "Meters"]]

how do I overwrite the DisplayFunction to make the out put display differently, without changing the actual value of the output?

RunnyKine
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Yituo
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1 Answers1

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Boxes are just like any other expression when they are evaluated by the kernel, so one way to achieve this is with replacement rules:

ToBoxes@Quantity[3, "Meters"] /.
  (DisplayFunction -> _) -> (DisplayFunction -> (RowBox@{#1, " метра"} &)) // RawBoxes

3 метра

mfvonh
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