Try
Dim regKey As Microsoft.Win32.RegistryKey
regKey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("مسار المفتاح", True)
If regKey.GetValue("اسم المفتاح") Is Nothing Then
form3.show
End If
End If
regKey.Close()
Catch ex As Exception
End TryregKey.SetValue("ضع القيمة هناا", "اسم المفتاح")Imports Microsoft.Win32
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Registry.CurrentUser.SetValue("Test", "My Reg Key")
MsgBox("موافق")
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Registry.CurrentUser.DeleteValue("Test")
MsgBox("موافق")
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim str As String = Registry.CurrentUser.GetValue("Test")
MsgBox(str)
End Sub
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'عند التحقق من قيمه في الريجستري ... تشغيل الفورم الحالي ... اما اذا لم يوجد قيمه تشغيل فورم اخر
End Sub
End Class
Dim exists As Boolean = False
Try
If My.Computer.Registry.CurrentUser.OpenSubKey("Test") IsNot Nothing Then
exists = True
End If
Finally
My.Computer.Registry.CurrentUser.Close()
End Try
If Not exists Then
Application.ExitThread()
End IfIf Registry.CurrentUser.GetValue("Test") Is Nothing Then
'فى حالة عدم وجود القيمة
Else
'فى حالة وجود القيمة
End If
Dim str As String = Registry.CurrentUser.GetValue("Test")
If (str Is Nothing) = 0 Then
Else
MsgBox("لم يتم تفعيل الريجستري")
Me.Close()
End If