If Trim(text) = "" Then MsgBox "Please enter text to encode", vbExclamation Exit Sub End If
' Simple version - actual QR encoding is complex ' This creates a basic matrix (simplified) qr.size = 21 ' Minimum QR version size
' Save as image QR.SaveImage App.Path & "\qrcode.bmp", 100 qr code in vb6
' Display result Picture1.Picture = LoadPicture(App.Path & "\qrcode.png") End Sub For simple alphanumeric QR codes, you can implement manually:
result = "" For i = 1 To Len(str) ch = Mid(str, i, 1) If (ch >= "A" And ch <= "Z") Or (ch >= "a" And ch <= "z") Or (ch >= "0" And ch <= "9") Then result = result & ch Else result = result & "%" & Hex(Asc(ch)) End If Next i URLEncode = result End Function Step 1: Download ZXing Download ZXing.Core.dll or use the command-line tool. Step 2: Shell Execute Method Private Sub GenerateQRWithZXing() Dim strCommand As String Dim strText As String ' Save text to temporary file strText = Text1.Text Open App.Path & "\temp.txt" For Output As #1 Print #1, strText Close #1 If Trim(text) = "" Then MsgBox "Please enter
' Wait for file creation Do While Dir(App.Path & "\qrcode.png") = "" DoEvents Loop
GenerateQRCode Text1.Text, size End Sub
Private Function URLEncode(str As String) As String Dim i As Integer Dim result As String Dim ch As String
Set http = Nothing End Sub
Private Sub GenerateQRCode(text As String, size As String) Dim url As String Dim http As Object Dim fileNum As Integer Dim filePath As String