Vb.Net - Not Defteri Adı Değiştirmek

Bugün basit bir program olan    not defteri adını değiştirmeyi ve  bilgi girmeyi  göstereceğiz.

Forma şunları ekleyin;

2 tane GroupBox

4 tane TextBox

2 tane Button

Textbox1 ile TextBox2'nin  Properties özellikleri bölümünden textaligin özelliğini center yapın.

Public Class Form1
    
    Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal ipClassName As String, ByVal ipWindowName As String) As Integer
    Private Declare Function FindWindowEx Lib "user32.dll" Alias "FindWindowExA" (ByVal hWndParent As Integer, ByVal hWndChildAfter As Integer, ByVal ipszClass As String, ByVal ipszWindow As String) As Integer
    Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hwnd As Integer, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal IParam As String) As Integer

    Private Const WM_SETTEXT As Integer = &HC
    Private hwnd As IntPtr
    Private f As IntPtr


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        hwnd = FindWindow(vbNullString, TextBox1.Text)
        SendMessage(hwnd, WM_SETTEXT, 0, TextBox2.Text)
        TextBox3.Text = TextBox2.Text

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        hwnd = FindWindow(vbNullString, TextBox3.Text)
        f = FindWindowEx(hwnd, 0, "Edit", vbNullString)
        SendMessage(f, WM_SETTEXT, 0, TextBox4.Text)

    End Sub
End Class