GetWindowPeerClip Method (NTopLevelWindow)
Gets the window peer clip to use. This implementation returns a window peer clip from the current frame border outer outline. No clip is returned in case the FrameBorder is null, or the frame border has no outer corner rounding (e.g. is outer rectangular)
Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)