Visual Basic - Inputbox solo numeros

Dim Numero As String

Do

Numero = InputBox("numero:")

Loop Until IsNumeric(Numero)

Private Sub Command1_Click()

  Command1.Tag = "Uhm"

  hInst = GetWindowLong(Me.hwnd, GWL_HINSTANCE)

  Thread = GetCurrentThreadId()

  hHook = SetWindowsHookEx(WH_CBT, AddressOf Manipulate, hInst, Thread)

  Resultado = InputBox("Intenta escribir letras", "Solo numeros")

  Command1.Tag = ""

End Sub

Private Sub Command2_Click()

  Command2.Tag = "Uhm"

  hInst = GetWindowLong(Me.hwnd, GWL_HINSTANCE)

  Thread = GetCurrentThreadId()

  hHook = SetWindowsHookEx(WH_CBT, AddressOf Manipulate, hInst, Thread)

  Resultado = InputBox("Se ven tipo password", "Tipo Password")

  Command2.Tag = ""

End Sub

' ------------------------------------------------------------------

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long

Const GWL_STYLE = (-16)

Const ES_NUMBER = &H2000&

Const KEY_MASK = 42&

Const EM_SETPASSWORDCHAR = &HCC

' used for placing the hook

Public Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long

Public Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long

Public Declare Function GetCurrentThreadId Lib "kernel32" () As Long

Public Declare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Long

Public Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long

Public Const GWL_HINSTANCE = (-6)

Public Const SWP_NOSIZE = &H1

Public Const SWP_NOZORDER = &H4

Public Const SWP_NOACTIVATE = &H10

Public Const HCBT_ACTIVATE = 5

Public Const WH_CBT = 5

Public hHook As Long

' used for locating and changing the buttons

Public Declare Function FindWindowEx Lib "user32.dll" Alias "FindWindowExA" (ByVal hwndParent As Long, ByVal hwndChildAfter As Long, ByVal lpszClass As String, ByVal lpszWindow As String) As Long

Public Declare Function SetWindowText Lib "user32.dll" Alias "SetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String) As Long

Public Declare Function GetClassName Lib "user32.dll" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long

Public ButtonText(0 To 3) As String

Public Sub SetNumber(hwnd As Long, Flag As Boolean)

    Dim curstyle As Long, newstyle As Long

    If Flag = True Then

       curstyle = GetWindowLong(hwnd, GWL_STYLE)

       curstyle = curstyle Or ES_NUMBER

       newstyle = SetWindowLong(hwnd, GWL_STYLE, curstyle)

    Else

       SendMessage hwnd, EM_SETPASSWORDCHAR, KEY_MASK, 0&

    End If

End Sub

' function called by hook

Public Function Manipulate(ByVal lMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

    Dim Btn(0 To 3) As Long

    Dim ButtonCount As Integer

    Dim T As Integer

    If lMsg = HCBT_ACTIVATE Then

        Btn(0) = FindWindowEx(wParam, 0, vbNullString, vbNullString)

        Dim cName As String, Length As Long

        For T = 1 To 3

            Btn(T) = FindWindowEx(wParam, Btn(T - 1), vbNullString, vbNullString)

            ' no more windows found

            If Btn(T) = 0 Then Exit For

        Next T

        For T = 0 To 3

            If Btn(T) <> 0 And Btn(T) <> wParam Then

                cName = Space(255)

                Length = GetClassName(Btn(T), cName, 255)

                cName = Left(cName, Length)

                'Debug.Print cName

                If UCase(cName) = "EDIT" Then

                  If Form1.Command1.Tag <> "" Then

                    SetNumber Btn(T), True

                  Else

                    SetNumber Btn(T), False

                  End If

                End If

                'If UCase(cName) = "BUTTON" Then

                    ' a button

                '    SetWindowText Btn(T), ButtonText(ButtonCount)

                '    ButtonCount = ButtonCount + 1

                'End If

            End If

        Next T

        'Release the CBT hook

        UnhookWindowsHookEx hHook

    End If

    Manip = False

End Function