B4A Library CaptchaView

Use this for captcha challenge in your applications...
CaptchaView
Version: 0.2

• CaptchaView
  Fields:
  • ba As BA
• Methods:
  • AddToParent (Parent As ViewGroup, left As Int, top As Int, width As Int, height As Int)
  • BringToFront
  • Capture
  • DesignerCreateView (base As PanelWrapper, lw As LabelWrapper, props As Map)
  • Initialize (EventName As String)
  • Invalidate
  • Invalidate2 (arg0 As Rect)
  • Invalidate3 (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
  • IsInitialized As Boolean
  • Refresh
    refresh captcha string
  • RemoveView
  • RequestFocus As Boolean
  • SendToBack
  • SetBackgroundImage (arg0 As Bitmap)
  • SetColorAnimated (arg0 As Int, arg1 As Int, arg2 As Int)
  • SetLayout (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
  • SetLayoutAnimated (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int, arg4 As Int)
  • SetVisibleAnimated (arg0 As Int, arg1 As Boolean)
  • enableDotBlur (enable As Boolean)
  • enableLineBlur (enable As Boolean)
• Properties:
  • Background As Drawable
  • Captcha As String [read only]
    get captcha string
  • Color As Int [write only]
  • Enabled As Boolean
  • Height As Int
  • Left As Int
  • Length As Int
    set length
  • Pattern As String
    set captcha pattern
  • Tag As Object
  • Top As Int
  • Visible As Boolean
  • Width As Int

 

[Daniel-White]

Thanks for share it, One question, why it is a must use uppercase?, if I am not wrong, usually, the users can answer the captcha in lowercase or uppercase.

 

[jahswant]

Thanks for share it, One question, why it is a must use uppercase?, if I am not wrong, usually, the users can answer the captcha in lowercase or uppercase.

You can solve this by using :

If CaptchaView1.Captcha.SubString2(0,CaptchaView1.Length).ToLowerCase  = txtCheck.Text.Trim Then
        ToastMessageShow("Correct Answer",False)       
        Else
        ToastMessageShow("Wrong Answer",False)
        CaptchaView1.Refresh
        txtCheck.Text = ""
    End If

 

[Daniel-White]

Thanks you Indeed. it is working nice .