Type int
Default value: 0 (the xunit value is not used when set = 0)
Allowed values: 10 – 300 mils
This may be used to specify the X unit dimension (ie. The width of the narrowest bar) in standard mil units (NOT mm. 1 mil = 0.001 inches). Barcode should not normally be produced with an X value smaller than 10, and MUST NOT be produced with an X value smaller than 8 - or the barcode will not meet the standard specification. This provides an alternative way of specifying the barcode size - rather than using the lpRect parameter.
When xunit is specified the length of the barcode is calculated within the DLL and the length implied by other parameters is ignored.
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