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'Create a Rectangular Form using CreateRectRgn and SetWindowRgn API

'Create a Rectangular Form using CreateRectRgn and SetWindowRgn API

API Declarations


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



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'http://www.geocities.com/marskarthik
'http://marskarthik.virtualave.net
'Email: [email protected]
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
'Create Rectangular Region
nhwnd = CreateRectRgn(0, 0, fwidth / 2, fheight / 2)
'Set Rectangular Region on form
rval = SetWindowRgn(Me.hWnd, nhwnd, True)
rval = DeleteObject(nhwnd)
End Sub