ScrollBar Visibility

[Jeff Gaines]

Is there a way to find out if the vertical ScrollBar is visible in an ObjectListView please?

[Johnny J]

Old question, but here is the answer in case somebody else needs it:

[DllImport("user32.dll", EntryPoint = "GetWindowLong", CharSet = CharSet.Auto)]
public static extern IntPtr GetWindowLong32(IntPtr hWnd, int nIndex);

[DllImport("user32.dll", EntryPoint = "GetWindowLongPtr", CharSet = CharSet.Auto)]
public static extern IntPtr GetWindowLongPtr64(IntPtr hWnd, int nIndex);

private bool HasHorizontalScrollBar(ListView lv)
{
const int GWL_STYLE = -16;
const int WS_HSCROLL = 0x00100000;

return (GetWindowLong(lv.Handle, GWL_STYLE) & WS_HSCROLL) != 0;

}

private bool HasVerticalScrollBar(ListView lv)
{
const int GWL_STYLE = -16;
const int WS_VSCROLL = 0x00200000;

return (GetWindowLong(lv.Handle, GWL_STYLE) & WS_VSCROLL) != 0;

}

private int GetWindowLong(IntPtr hWnd, int nIndex)
{
if (IntPtr.Size == 4)
return (int)GetWindowLong32(hWnd, nIndex);
else
return (int)(long)GetWindowLongPtr64(hWnd, nIndex);
}

[Jeff Gaines]

Many thanks, Johnny J, works a treat!