Win32 API 有很多让你意想不到的功能。要创建特殊的不规则窗口看上去似乎很难。但我们如果我们说我们用几行代码就可以实现，这似乎不可思议。但事实就是如此！请试试：
Private Declare Function CreateEllipticRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function SetWindowRgn Lib "user32" (ByVal hWnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long
Private Sub Form_Load()
Show 'The form!
SetWindowRgn hWnd, CreateEllipticRgn(0, 0, 300, 200), True
End Sub
上述代码可以创建一个椭圆形状的窗口。怎么样？
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