关于定时关闭询问对话框的一点体会

Option Explicit

Const MB_DEFBUTTON1 = &H0&
Const MB_DEFBUTTON2 = &H100&
Const MB_DEFBUTTON3 = &H200&
Const MB_ICONASTERISK = &H40&
Const MB_ICONEXCLAMATION = &H30&
Const MB_ICONHAND = &H10&
Const MB_ICONINFORMATION = MB_ICONASTERISK
Const MB_ICONQUESTION = &H20&
Const MB_ICONSTOP = MB_ICONHAND
Const MB_OK = &H0&
Const MB_OKCANCEL = &H1&
Const MB_YESNO = &H4&
Const MB_YESNOCANCEL = &H3&
Const MB_ABORTRETRYIGNORE = &H2&
Const MB_RETRYCANCEL = &H5&
Private Declare Function MessageBox Lib "user32" Alias "MessageBoxA" (ByVal hwnd As Long, ByVal lpText As String, ByVal lpCaption As String, ByVal wType As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function GetDlgItem Lib "user32" (ByVal hDlg As Long, ByVal nIDDlgItem As Long) As Long
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 Const BM_CLICK = &HF5
Dim i As Long
Private Sub Command1_Click()
     Timer1.Enabled = True
     MessageBox Me.hwnd, "this is test", App.Title, MB_OK
     Timer1.Enabled = False
End Sub

Private Sub Form_Load()
    Timer1.Enabled = False
    Timer1.Interval = 1000
End Sub

Private Sub Timer1_Timer()

    i = i + 1
    If i >= 10 Then
        Dim dlghwnd As Long
        Dim buttonhwnd As Long
        dlghwnd = FindWindow("#32770", App.Title)
        buttonhwnd = GetDlgItem(dlghwnd, 2) '其中的2，用spy++获得
        SendMessage buttonhwnd, BM_CLICK, 0&, ByVal 0&
    End If
   
End Sub