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Data Matrix COM DLL Interop in .NET


This post explains how to create a Data Matrix barcode using the IDAutomation COM DLL in a .NET Forms Application. However, it should be noted that the .NET Generator is usually the recommended implementation for .NET Apps.
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Application: .NET

07-06-23     1.4 year(s) ago    

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Ben

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In this project, I'll create a form that generates a barcode. It uses the COM DLL along with a Button and TextBox on a Form.

1. Purchase the GS1-Data Matrix Font & Encoder Package (Developer License or greater).

2. Install the GS1-DataMatrix: registers the IDAutomationDMATRIX.dll (COM DLL) and IDAutomation2D font.

3. Run Visual Studio and create a Windows Forms C# project.
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4. Create a Windows Forms project and select Next.
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5. Name the project and select Next.

6. Set the Framework and select Create.

7. Select Toolbox on the left panel.

8. Select All Windows Forms, add a Button and TextBox to the Form.
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9. In the Solution Explorer, right-click Dependencies - Add Project Reference.

10. In the Reference Mananger, select the IDAutomation DataMatrix Barcode 1.803.

11. Choose OK.

Imported DLL as Interop:
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12. Double-click the button to access the code behind.

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13. Create an instance of the DataMatrix object:
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14. The method FontEncode takes five parameters including DataToEncode, inTilde, inEncoding, and inFormat. To learn more about these parameters, view the Encoder Specifications.
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15. The fifth parameter is a ReturnVal for the encoded data. Create a string variable as:
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16. Set the first parameter, DataToEncode to a string. The next three parameters are set to 0 (default for demonstration purposes). The final parameter takes the ReturnVal set in the line above.
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17. Pass the encoded text to TextBox.
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18. Set the font name and point size.
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19. Run the application and select the button to generate the barcode image.
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Scan the barcode with the IDAutomation Data Decoder Verifier available for Android and iOS.
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Posted 1.4 year(s) ago

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