selam
Vb ile oval pencere yapimi kotlar buyrun:

Option Explicit
Private Type POINTAPI
x As Long
y As Long
End Type
Private Declare Function CreatePolygonRgn Lib "gdi32" (lpPoint As POINTAPI, ByVal nCount As Long, ByVal nPolyFillMode As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject 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 CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Dim Region As Long


Private Sub Form_Resize()
Dim Breite As Long, Hohe As Long
Dim P(5) As POINTAPI

Breite = Me.Width / Screen.TwipsPerPixelX
Hohe = Me.Height / Screen.TwipsPerPixelY
Region = CreateRoundRectRgn(0, 0, Breite, Hohe, Breite, Hohe)

'P(0).x = Breite \ 2: P(0).y = 0
'P(1).x = Breite: P(1).y = 0
'P(2).x = Breite: P(2).y = Hohe \ 2
'P(3).x = Breite \ 2: P(3).y = Hohe
'P(4).x = 0: P(4).y = Hohe
'P(5).x = 0: P(5).y = Hohe \ 2
'Region = CreatePolygonRgn(P(0), 6, 0)

SetWindowRgn Me.hWnd, Region, True

End Sub
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