[3asfa~mdmra]

سلام عليكم

اريد من الاخوة ان يقدمي لكي

كود ييجعل البرنامج تجريبي

بعدد مرات تشغيل

وبحيث لايمكن تجاوزة بأي

شكل من الاشكال

وانا وضعت هذا الكود لينتهي عمل برنامج بعد 29 يوم

إقتباس :

كود :

Dim intTime As Integer = 1
   Dim dteLastStart, dteStartDate As Date
   Dim blnFirstTime, blnEnabled As Boolean
   Dim lngTimeLeft As Long

   blnEnabled = True
   If dteStartDate = Nothing Then
       dteStartDate = Now
   End If

   My.Application.SaveMySettingsOnExit = True


   If DateDiff(DateInterval.Day, dteLastStart, Now) < 0 Then
       'First clock change
       If intTime = 1 Then
           MsgBox("FRED has detected that you have changed your system date to an earlier date" & vbCrLf & "As FRED has built-in security," & vbCrLf & "FRED will only run until the next intTime you change your system date", MsgBoxStyle.OkOnly Or MsgBoxStyle.Exclamation, "System Date Changed")
           intTime = 2
       ElseIf intTime = 2 Then
           'Second clock change
           blnEnabled = False
           MsgBox("FRED has detected that you have changed your system date to an earlier date" & vbCrLf & "As this is the second warning, FRED will now be disabled", MsgBoxStyle.OkOnly Or MsgBoxStyle.Exclamation, "System Date Changed")
       End If
       'disables app
       If blnEnabled = False Then
           If MsgBox("FRED is disabled", MsgBoxStyle.OkOnly Or MsgBoxStyle.Information, "Disabled") = MsgBoxResult.Ok Then
               For Each form As Form In My.Application.OpenForms
                   form.Close()
               Next
           End If
       End If
   End If

   If DateDiff(DateInterval.Day, dteStartDate, Now) > 29 Then
       blnEnabled = False
       If blnEnabled = False Then
           If MsgBox("FRED has reached the end of it's trial.", MsgBoxStyle.OkOnly Or MsgBoxStyle.Information, "Trial Ended") = MsgBoxResult.Ok Then
               'Close all open forms
               For Each form As Form In My.Application.OpenForms
                   form.Close()
               Next
           End If
       End If
   End If
   dteLastStart = Now
   If blnFirstTime = True Then
       blnFirstTime = False
   End If
   'Saves variable settings
   My.Settings.Save()

   lngTimeLeft = 29 - (DateDiff(DateInterval.Day, dteStartDate, Now))

   MsgBox("This is a 29-day trial version." & vbCrLf & "You have " & CStr(lngTimeLeft) & " days left.", MsgBoxStyle.OkOnly, "FRED Trial")
end sub