کلاس زیر رو به پروژت اضافه کن و از این به بعد به جای MessageBox بنویس MessageBoxFa . بقیه روش کار کردن عینا همون MessageBox هست.
Imports System
Imports System.Windows.Forms
Imports System.Runtime.InteropServices
Imports System.Text
Public Class MessageBoxFa
Public Delegate Function CallBack_WinProc(ByVal uMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Public Delegate Function CallBack_EnumWinProc(ByVal hWnd As Integer, ByVal lParam As Integer) As Integer
<DllImport("user32.dll")> _
Private Shared Function GetWindowLong(ByVal hwnd As Integer, ByVal nIndex As Integer) As Integer
End Function
<DllImport("kernel32.dll")> _
Private Shared Function GetCurrentThreadId() As Integer
End Function
<DllImport("user32.dll")> _
Private Shared Function SetWindowsHookEx(ByVal idHook As Integer, ByVal lpfn As CallBack_WinProc, ByVal hmod As Integer, ByVal dwThreadId As Integer) As Integer
End Function
<DllImport("user32.dll")> _
Private Shared Function UnhookWindowsHookEx(ByVal hHook As Integer) As Integer
End Function
<DllImport("user32.dll", CharSet:=CharSet.Auto)> _
Private Shared Function SetWindowText(ByVal hwnd As Integer, ByVal lpString As String) As Integer
End Function
<DllImport("user32.dll")> _
Private Shared Function EnumChildWindows(ByVal hWndParent As Integer, ByVal lpEnumFunc As CallBack_EnumWinProc, ByVal lParam As Integer) As Integer
End Function
<DllImport("user32.dll")> _
Private Shared Function GetClassName(ByVal hwnd As Integer, ByVal lpClassName As StringBuilder, ByVal nMaxCount As Integer) As Integer
End Function
Shared TopCount As Integer
Shared ButtonCount As Integer
Private Const GWL_HINSTANCE As Integer = (-6)
Private Const HCBT_ACTIVATE As Integer = 5
Private Const WH_CBT As Integer = 5
Private Shared hHook As Integer
Shared strCaption1 As String = ""
Shared strCaption2 As String = ""
Shared strCaption3 As String = ""
Shared Drk As New Form
Shared Function Show(ByVal Prompt As String _
, Optional ByVal Title As String = "", Optional ByVal buttons As MessageBoxButtons = MessageBoxButtons.OK _
, Optional ByVal icon As MessageBoxIcon = MessageBoxIcon.None _
, Optional ByVal DefaultButton As MessageBoxDefaultButton = MessageBoxDefaultButton.Button1 _
, Optional ByVal options As MessageBoxOptions = MessageBoxOptions.RtlReading _
, Optional ByVal m As MsgBoxStyle = MsgBoxStyle.ApplicationModal) As DialogResult
'
Dim hInst As Integer
Dim Thread As Integer
TopCount = 0
ButtonCount = 0
Select Case (buttons)
Case MessageBoxButtons.AbortRetryIgnore
strCaption1 = "رها کردن"
strCaption2 = "کوشش مجدد"
strCaption3 = "چشم پوشی"
Case MessageBoxButtons.OK
strCaption1 = "تایید"
Case MessageBoxButtons.OKCancel
strCaption1 = "تایید"
strCaption2 = "لغو"
Case MessageBoxButtons.RetryCancel
strCaption1 = "کوشش مجدد"
strCaption2 = "لغو"
Case MessageBoxButtons.YesNo
strCaption1 = "بله"
strCaption2 = "خیر"
Case MessageBoxButtons.YesNoCancel
strCaption1 = "بله"
strCaption2 = "خیر"
strCaption3 = "لغو"
Case MessageBoxButtons.OK
strCaption1 = "تایید"
End Select
'If Title = "" Then Title = Application.ProductName
Dim myWndProc As CallBack_WinProc = New CallBack_WinProc(AddressOf WinProc)
hInst = GetWindowLong(1, GWL_HINSTANCE)
Thread = GetCurrentThreadId()
hHook = SetWindowsHookEx(WH_CBT, myWndProc, hInst, Thread)
'Return MessageBox.Show(Prompt, Title, buttons, icon, DefaultButton, options)
Return MsgBox(Prompt, buttons + icon + DefaultButton + MsgBoxStyle.MsgBoxRight + options + m, Title)
End Function
Private Shared Function WinProc(ByVal uMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
Dim myEnumProc As CallBack_EnumWinProc = New CallBack_EnumWinProc(AddressOf EnumWinProc)
If uMsg = HCBT_ACTIVATE Then
EnumChildWindows(wParam, myEnumProc, 0)
UnhookWindowsHookEx(hHook)
End If
Return 0
End Function
Private Shared Function EnumWinProc(ByVal hWnd As Integer, ByVal lParam As Integer) As Integer
Dim strBuffer As StringBuilder = New StringBuilder(256)
TopCount += 1
GetClassName(hWnd, strBuffer, strBuffer.Capacity)
Dim ss As String = strBuffer.ToString()
If (ss.ToUpper().StartsWith("BUTTON")) Then
ButtonCount += 1
Select Case (ButtonCount)
Case 1
SetWindowText(hWnd, strCaption1)
Exit Select
Case 2
SetWindowText(hWnd, strCaption2)
Exit Select
Case 3
SetWindowText(hWnd, strCaption3)
Exit Select
End Select
End If
Return ButtonCount
End Function
End Class