更改标准消息框按钮、文字的简单方法

'Code By 魑魅魍魉
'mailto:DemonStudio@hotmail.com

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
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 SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong 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 Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long

Private Const WM_SETFONT = &H30
Private Const WM_GETFONT = &H31
Private Const WM_KILLFOCUS = &H8

Private Sub Command1_Click()
 Timer1.Enabled = True
 MessageBox Me.hwnd, "我爱你", "bbbb", 0
End Sub

Private Sub Form_Load()
 Timer1.Interval = 100
 Timer1.Enabled = False
End Sub

Private Sub Timer1_Timer()
Dim a, b As Long
a = FindWindowEx(FindWindow("#32770", "bbbb"), 0, "button", "确定")
b = FindWindowEx(FindWindow("#32770", "bbbb"), 0, "static", "我爱你") '""是图标STATIC的窗口名
If a <> 0 Then
 SetWindowLong a, -16, &H50008000
 SendMessage a, &H8, 0, 0
 Text1 = SendMessage(Text1.hwnd, &H31, 0, 0)
 SendMessage a, &H30, CLng(Text1), 0
 SendMessage b, &H30, CLng(Text1), 0
End If
Timer1.Enabled = False
End Sub

效果如下：