BarCodeWiz Logo

UnitOfMeasure

Returns or sets the coordinate units used by the following properties:  BarHeight and XDimension, PictureWidth, PictureHeight, OutlineWidth, PaddingLeft, PaddingTop, PaddingRight, PaddingBottom

Syntax

BarCodeWiz1.UnitOfMeasure [ = enum]

 

The settings for enum are:

 

Value   Description
Unit_HiMetric   1 HiMetric Unit = 0.001 cm; 1000 HiMetric = 1cm
Unit_Mil   Default Setting. 1 Mil = 0.001 inch; 1000 Mil = 1 inch
Unit_Twip   1 Twip = 0.00694 inch; 1440 Twips = 1 inch
Unit_Inch   1 Inch = 2.54 Centimeters = 25.4 Millimeters = 72 Points = 1440 Twips = 1000 Mil = 2540 HiMetric Units
Unit_Millimeter   1 Millimeter = 1/10 Centimeter; 10 Millimeters = 1 Centimeter
Unit_Centimeter   1 Centimeter = .394 Inch; 2.54 Centimeters = 1 Inch
Unit_Point   1 Point = 1/72 inch; 72 Points = 1 Inch
Unit_DotAt96dpi   96 dots per inch. 1 unit = 1/96 inch
Unit_DotAt150dpi   150 dots per inch. 1 unit = 1/150 inch
Unit_DotAt203dpi   203.2 dots per inch. 1 unit = 1/(203.2) inch
Unit_DotAt240dpi   240 dots per inch. 1 unit = 1/240 inch
Unit_DotAt300dpi   300 dots per inch. 1 unit = 1/300 inch
Unit_DotAt305dpi   304.8 dots per inch. 1 unit = 1/(304.8) inch
Unit_DotAt400dpi   400 dots per inch. 1 unit = 1/400 inch
Unit_DotAt406dpi   406.4 dots per inch. 1 unit = 1/(406.4) inch
Unit_DotAt480dpi   480 dots per inch. 1 unit = 1/480 inch
Unit_DotAt600dpi   600 dots per inch. 1 unit = 1/1600 inch
Unit_DotAt609dpi   609.6 dots per inch. 1 unit = 1/(609.6) inch

When creating barcode for low resolution printers, it's always best to set X Dimension to a value that aligns with the size of the printer dot.  This can be done easily by setting UnitOfMeasure to a value with your printer's dots-per-inch resolution. For example:

BarCodeWiz1.UnitOfMeasure = Unit_DotAt203dpi
BarCodeWiz1.XDimension = 4.0 // Set the X Dimension to thickness equal to 4 dots

For displaying barcodes on screen at 96 dots-per-inch:

BarCodeWiz1.UnitOfMeasure = Unit_DotAt96dpi
BarCodeWiz1.XDimension = 2.0 // Set the X Dimension to 2 pixel
BarCodeWiz1.BarHeight = 96.0 // Set Bar Height to 96 pixels (1 inch)
BarCodeWiz1.OutlineWidth = 1.0 // Set width of outline to 1 pixel