Labels:crt screen | monitor | web site OCR: (Overrides) wndProc Public Class ScrollList Box Inherits System Windows Forms ListBox Pubiic Event Scroll {ByVal sender Object, ByVal ScrollListBoxEvent args Private Const WM VSCROLI H115 By overr iding the WndProc procedure, en can intercept all messages being sent to the ScrollListBox This way we can detect when the ListBox control on the form is being scrolled and raise our custom Scroll event procedure Protected Overrides Sub UndProc (ByRef m As System Windows Forms Message If rm Msg VSCROLL Then End VERY important that after intercept ing any TTE pass the message on to the normal WndProc procedure of the class being derived MyBase UndProc (m) End Sub End Class Scrol stBox ScroilListBox BoxEventArgs messaces heing
