/// <summary>
///
/// </summary>
private void Subclass()
{
if ((Handle != IntPtr.Zero) && (defWindowProc == IntPtr.Zero))
{
defWindowProc = NativeMethods.GetWindowLong(Handle, -4);
windowProc = Callback;
NativeMethods.SetWindowLong(Handle, -4, windowProc);
}
}
public static bool IsScollBarVisibile(this Control control)
{
var style = (int)NativeMethods.GetWindowLong(control.Handle, -16);
return((style & WS_VSCROLL) != 0);
}
