Visual Basic examples using the ActiveBarcode REST API

ActiveBarcodeREST-API.VB

' On a form are an input field (Textbox1), a Picturebox (Picturebox1) and a button (Button1). 
' If you click the button, a barcode with the text of the input field
' is called up via barcode API and drawn into the picturebox.
' 
Public Class Form1
  Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim ReqUrl As String = "https://api.activebarcode.net/v1/png?access=YOUR-KEY-HERE&"
    Dim ReqParam = "code =CODE128&width=" + CStr(PictureBox1.Width) _
    + "&height=" + CStr(PictureBox1.Height) _
    + "&text=" + TextBox1.Text
    Dim req As System.Net.WebRequest = System.Net.WebRequest.Create(ReqUrl + ReqParam)
    Using request As System.Net.WebResponse = req.GetResponse
      Using stream As System.IO.Stream = request.GetResponseStream
        PictureBox1.Image = New Bitmap(System.Drawing.Image.FromStream(stream))
      End Using
    End Using
  End Sub
End Class