Lexmark MX725 Forms and Bar Code Card P4.2 Technical Reference - Page 62
PostScript emulation operators
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Lexmark Confidential until announced PostScript emulation 62 PostScript emulation operators Operator Function parameter barcodeshow String dict barcodeshow Similar to the show operator, this function prints the specified bar code symbol at the currentpoint and advances the currentpoint by the displacement of the symbol (as returned by the barcodewidth operator). For example: (01234567890) barcodebbox This operation returns four values on the stack indicating the coordinates of the lower‑left and the upper‑right corner of the box. The box fully encloses the bar code that results from doing a barcodeshow with the same arguments. This bar code has no quiet zone and no text embedded, if shown. The default height value of 240 is used. The default bar and space values of [6 18] are also used. The /Special key does not apply to the /Int2of5 symbology. Because there is no text embedded, /PrintCheckChar is irrelevant.