PowerBuilder Barcode Integration

The definitive guide to local DLL processing, Cloud API integration, and DataWindow font rendering.

Local .NET Core DLL Integration

Utilizing DotNetObject allows you to perform complex barcode encoding logic directly on the client machine without network latency. This is ideal for 2D barcodes like QR Code, Aztec, and DataMatrix.

Full PowerScript Setup

DotNetAssembly lnv_Asm
DotNetObject lnv_Encoder
Long ll_ret

lnv_Asm = Create DotNetAssembly
// Ensure .NET Runtime is installed
ll_ret = lnv_Asm.LoadWithDotNetCore("cruflbcsnet.dll")

IF ll_ret = 1 THEN
    lnv_Encoder = lnv_Asm.CreateInstance("Barcodesoft.Encoder")
    // Encode returns a string formatted for the BCS font
    ls_barcode_data = lnv_Encoder.Encode(ls_input)
    dw_1.SetItem(row, "barcode_col", ls_barcode_data)
ELSE
    MessageBox("Error", "Failed to load .NET DLL. Check Runtime.")
END IF

Cloud REST API (No-Code Setup)

For zero-footprint deployments, use the REST API. PowerBuilder's DataWindow handles this via the Bitmap() expression.

Expression for Computed Field:


                        Bitmap("https://www.barcodesoft.com/barcode/qrcode/token=YOUR_TOKEN&text=" + id_field + "&format=png")

Tip: Use a small PNG format to reduce DataWindow retrieval time.

DataWindow Design Steps

To ensure the barcode scans correctly, follow these UI adjustments in the DataWindow Painter:

Font Selection: Set the column font to the specific barcode font (e.g., BCSQRcode).
Anti-Aliasing: Disable "TrueType" smoothing in Windows font settings if the barcode appears blurry.
Column Size: Ensure the column is wide enough to prevent "clipping," which renders the barcode unreadable.
Autosize Height: Enable this property if the amount of data encoded varies significantly.

Choosing Your Method

Feature	.NET DLL	REST API
Internet Required	No	Yes
Batch Performance	High (Instant)	Medium (Network Latency)
Ease of Setup	Requires Runtime	Plug & Play