VB.NET MSI Plessy Generator Size Setting Tutorial

sample source code to generate linear MSI Plessy images and adjust barcode size in VB.NET

  • Easy to be installed in VB.NET IDEs
  • Reusable .NET component
  • Easy to define the width and height of a module bar in MSI Plessy
  • Supported unit of measure include Pixel, Cm, and Inch
  • Print flexible margins around MSI Plessy Symbol
  • Support symbol and background color setting
  • Generate MSI Plessy in GIF, TIFF, BMP, PNG, and JPEG

MSI Plessey, known as Modified Plessey, is a fixed-length, non-self-checking symbology used in retail business.

How to generate, print barcode using .NET, Java sdk library control with example project source code free download:

MSI Plessy Symbology Structure

W: the width of MSI Plessy, controlled by property BarCodeWidth

X (X ≥ 1 pixel): the width of a module bar, controlled by property X

Q (Q ≥ 10X): the width of the quiet zone, related to property LeftMargin & RightMargin

More information about MSI Plessy barcode settings in Excel Barcode Generator,please see:


MSI Plessy VB.NET Generator Size Setting Tutorial

After MSI Plessy VB.NET Generator installation, get it ready in VB.NET by placing the following statement:

Dim msi As OnBarcode.Barcode.Linear

msi = New OnBarcode.Barcode.Linear

msi.Type = OnBarcode.Barcode.BarcodeType.MSI


UOM is the controller of size setting unit. Pixel, Cm, and Inch are provided as its options. The default value of UOM is Pixel. For example, type the following statement to select Pixel as the unit of size setting measure:

msi.UOM = OnBarcode.Barcode.UnitOfMeasure.PIXEL

X & Y

Property X (Type: Float; Default: 1) and Property Y (Type: Float; Default: 60) are used in MSI Plessy barcode symbol size setting. X is for the module width setting, and Y controls the height of the bar.

Sample usage:

msi.X = 2

msi.Y = 70

BarCodeHeight & BarCodeWidth

Property BarCodeHeight (Type: Float; Default: 0) and Property BarCodeWidth (Type: Float; Default: 0) to set the size of the whole image.

Sample usage:

msi.BarcodeHeight = 60

msi.BarcodeWidth = 175


When the value of X, Y, BarCodeWidth, and BarCodeHeight conflict with each other, Property AutoResize (Type: bool; Default: False) should be enabled to solve the problem and make the MSI Plessy 100% compatible with its symbology specification. See MSI Plessy Barcode Size in VB.NET to know more usage of AutoResize.

Sample usage:

msi.X = 2

msi.BarcodeHeight = 60

msi.AutoResize = True

TopMargin, BottomMargin, LeftMargin, & RightMargin

Using MSI Plessy VB.NET Generator, a quiet zone with 10X width will be generated automatically at each side of the MSI Plessy. When wider quiet zone is needed, you can increase the value of properties LeftMargin (Type: Float; Default: 0) and RightMargin (Type: Float; Default: 0). You can also create margins using TopMargin (Type: Float; Default: 0) and BottomMargin (Type: Float; Default: 0).

Sample usage:

msi.TopMargin = 10

msi.BottomMargin = 10

msi.LeftMargin = 10

msi.RightMargin = 10


Human readable text are required in almost every linear barcode symbology. Property TextMargin (Type: Float; Default: 6 pixel) is used to set the space between MSI Plessy bar code and the human readable text below the barcode.

Sample usage:

msi.TextMargin = 10

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