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Usually, when you enter the macro on its own the typeface name dialogue box would appear. This shows the 'short' and 'long' names of the currently-selected typeface, in two edit boxes one above the other. When you enter the tf macro immediately after a valid wdb macro, the dialogue box will not appear and the contents of each edit box are 'pushed' into the variables named by wdb in the order they appear in the dialogue box. In this example ^variable1 would receive the font short name, and ^variable2 would receive the font long name. The wdb macro asks for three variables to be filled: but because the typeface name dialogue box only contains two edit boxes, ^variable3 remains unaffected, i.e. retains any value it previously had.
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