Reading QR codes is harder than generating them. VB6 has no native camera access. You need to:
True VB6 GDI operations are slow and error-prone. For production, avoid this method. qr code in vb6
Why do developers continue to implement QR codes in a language over two decades old? The answer lies in the specific domain of "brownfield" software. Many Warehouse Management Systems (WMS) and Manufacturing Execution Systems (MES) were built in VB6. Reading QR codes is harder than generating them