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rectangular form example

this example shows how to create a rectangular form in Visual basic

Private Declare Function CreateRectRgn 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 Declare Function DeleteObject Lib “gdi32.dll” (ByVal hObject As Long) As Long

Private Sub Command1_Click()

End

End Sub

Private Sub Form_Load()

Dim fwidth As Long, fheight As Long
Dim rval As Long, nhwnd As Long
fwidth = Me.Width / Screen.TwipsPerPixelX
fheight = Me.Height / Screen.TwipsPerPixelY
nhwnd = CreateRectRgn(0, 0, fwidth / 2, fheight / 2)
rval = SetWindowRgn(Me.hWnd, nhwnd, True)
rval = DeleteObject(nhwnd)
End Sub

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