Return type: bool
If the b parameter is true then the light margin indicators (< and >) are included in the human readable text under the barcode. Note than for EAN-13 barcodes the left-hand light margin is a digit and is always displayed, and for UPC-A barcode both margin indicators are digits but these are only displayed when SetBarcodeMarginIndicators() has been called with the b parameter set to true.
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