Also, put a TDBBarcode1D component to the form and link the TBarcode1D component to the TDBBarcode1D component if the database support is required.
You can link single TQRImage or TQRGzImage control to multiple TBarcode1D components in order to display multiple barcode symbols in the TQRImage or TQRGzImage control (using the LeftMargin and TopMargin properties to specify the position for every barcode symbol).
If the barcode symbol cannot be read, please don't reduce/stretch width of the barcode symbol (set the Stretch property to false). You can change the barcode symbol width by changing its Module property value.
Also, please check whether the TQRImage or TQRGzImage control is large enough to accommodate entire barcode symbol.