Specifies whether to represent the leading quiet zone, trailing quiet zone, top quiet zone, and bottom quiet zone.
property ShowQuietZone: Boolean;
The property specifies whether to represent the leading quiet zone, trailing quiet zone, top quiet zone, and bottom quiet zone. If the property value is set to true, these quiet zones are represented. Otherwise, they don't be represented. And they are represented using the color specified by the SpaceColor property if the Inversed property is set to false. Otherwise, they are represented using the color specified by the BarColor property. See diagram (the SpaceColor property value is set to clSilver in order to accentuate the quiet zones):
You can use the LeadingQuietZone, TrailingQuietZone, TopQuietZone, and BottomQuietZone properties to specify the size of these quiet zones in modules.
For the TBarcode2D_Code16K barcode components, the leading and trailing quiet zones (their size is specified by LeadingQuietZone and TrailingQuietZone properties) will be represented always, even if the ShowQuietZone property value is set to false. See diagram (the SpaceColor property value is set to clSilver in order to accentuate the quiet zones):
For the TBarcode2D_CCA, TBarcode2D_CCB, and TBarcode2D_CCC barcode components, if the Linear property is set, the 2D symbol and the linear symbol are assembled to generate an EAN.UCC composite barcode symbol. And the LeadingQuietZone, TrailingQuietZone, TopQuietZone, and BottomQuietZone properties specify the size of quiet zones for entire EAN.UCC composite symbol, they are not only for the CC-A 2D symbol. See diagram (the SpaceColor property value is set to clSilver in order to accentuate the quiet zones):
For the TBarcode2D_CCA and TBarcode2D_CCB barcode components, if the linear component is the TBarcode1D_UPCE, TBarcode1D_UPCE0, TBarcode1D_UPCE1, TBarcode1D_UPCA, TBarcode1D_ENA8, or TBarcode1D_EAN13, and its left quiet zone mark is represented (the TextAlignment property's value is set to taCustom, and for the TBarcode1D_ENA8 component, the ShowQuietZoneMark property is set to true too), the leading quiet zone will be represented even if the ShowQuietZoneproperty is set to false, the minimum width of leading quiet zone is the distance between the left side of the left quiet zone mark of the linear symbol and the first bar of the 2D symbol, and the minimum width of leading quiet zone will be used if the value of LeadingQuietZone property is less than it. Similarly, if its right quiet zone mark is represented (the TextAlignment property's value is set to taCustom, and for the TBarcode1D_ENA8 and TBarcode1D_EAN13 components, the ShowQuietZoneMark property is set to true too), the trailing quiet zone will be represented even if the ShowQuietZoneproperty is set to false, the minimum width of trailing quiet zone is the distance between the last bar of the 2D symbol and the right side of the right quiet zone mark of the linear symbol, and the minimum width of trailing quiet zone will be used if the value of TrailingQuietZone property is less than it. In other words, the leading and trailing quiet zoens will be automatically extanded to cover the left and right quiet zone marks, regardless of whether the ShowQuietZone property is set to true or false. See diagram (the SpaceColor property value is set to clSilver in order to accentuate the quiet zones):
For all of the TBarcode2D_CCA, TBarcode2D_CCB, and TBarcode2D_CCC barcode components, if the linear component is the TBarcode1D_UPCE, TBarcode1D_UPCE0, TBarcode1D_UPCE1, TBarcode1D_UPCA, TBarcode1D_ENA8, TBarcode1D_EAN13, or TBarcode1D_EAN128, and its human readable text is represented and exceeds the beginning or end of entire EAN.UCC barcode symbol (the leading and trailing quiet zones are included if the ShowQuietZone property is set to true), the leading and trailing quiet zoens will be automatically extanded to cover the human readable text, regardless of whether the ShowQuietZone property is set to true or false. See diagram (the SpaceColor property value is set to clSilver in order to accentuate the quiet zones):
