using System; using System.Runtime.InteropServices; namespace Standard; [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 8)] internal struct THUMBBUTTON { public const int THBN_CLICKED = 6144; public THB dwMask; public uint iId; public uint iBitmap; public IntPtr hIcon; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] public string szTip; public THBF dwFlags; }