Zeta HTML Edit Control

namespace ZetaHtmlEditControl.PInvoke
{
    using System;
    using System.Drawing;
    using System.Runtime.InteropServices;

    public sealed class NativeMethods
	{
		public static readonly int BOOL_FALSE = 0;
		public static readonly int BOOL_TRUE = 1;

		[StructLayout( LayoutKind.Sequential )]
		public class POINT
		{
			public int x;
			public int y;
			public POINT()
			{
			}

			public POINT( int x, int y )
			{
				this.x = x;
				this.y = y;
			}
		}

		public static class SRESULTS
		{
			#region Public properties.

			public static readonly int S_OK = 0;
			public static readonly int S_FALSE = 1;

			#endregion
		}

		[Guid(@"00000000-0000-0000-C000-000000000046")]
		[InterfaceType(1)]
		[TypeLibType(16)]
		[ComImport]
		public interface IUnknown
		{
		}

		[Guid("00020400-0000-0000-C000-000000000046")]
		[TypeLibType(512)]
		[ComImport]
		public interface IDispatch
		{
		}

		public enum ContextMenuKind
		{
			#region Enum members.

			CONTEXT_MENU_DEFAULT = 0,
			CONTEXT_MENU_IMAGE = 1,
			CONTEXT_MENU_CONTROL = 2,
			CONTEXT_MENU_TABLE = 3,

			CONTEXT_MENU_TEXTSELECT = 4,
			CONTEXT_MENU_ANCHOR = 5,
			CONTEXT_MENU_UNKNOWN = 6

			#endregion
		}

		[Flags]
		public enum DOCHOSTUIFLAG
		{
			#region Enum members.

			DOCHOSTUIFLAG_DIALOG = 0x00000001,
			DOCHOSTUIFLAG_DISABLE_HELP_MENU = 0x00000002,
			DOCHOSTUIFLAG_NO3DBORDER = 0x00000004,
			DOCHOSTUIFLAG_SCROLL_NO = 0x00000008,
			DOCHOSTUIFLAG_DISABLE_SCRIPT_INACTIVE = 0x00000010,
			DOCHOSTUIFLAG_OPENNEWWIN = 0x00000020,
			DOCHOSTUIFLAG_DISABLE_OFFSCREEN = 0x00000040,
			DOCHOSTUIFLAG_FLAT_SCROLLBAR = 0x00000080,
			DOCHOSTUIFLAG_DIV_BLOCKDEFAULT = 0x00000100,
			DOCHOSTUIFLAG_ACTIVATE_CLIENTHIT_ONLY = 0x00000200,
			DOCHOSTUIFLAG_OVERRIDEBEHAVIORFACTORY = 0x00000400,
			DOCHOSTUIFLAG_CODEPAGELINKEDFONTS = 0x00000800,
			DOCHOSTUIFLAG_URL_ENCODING_DISABLE_UTF8 = 0x00001000,
			DOCHOSTUIFLAG_URL_ENCODING_ENABLE_UTF8 = 0x00002000,
			DOCHOSTUIFLAG_ENABLE_FORMS_AUTOCOMPLETE = 0x00004000,
			DOCHOSTUIFLAG_ENABLE_INPLACE_NAVIGATION = 0x00010000,
			DOCHOSTUIFLAG_IME_ENABLE_RECONVERSION = 0x00020000,
			DOCHOSTUIFLAG_THEME = 0x00040000,
			DOCHOSTUIFLAG_NOTHEME = 0x00080000,
			DOCHOSTUIFLAG_NOPICS = 0x00100000,
			DOCHOSTUIFLAG_NO3DOUTERBORDER = 0x00200000,
			DOCHOSTUIFLAG_DISABLE_EDIT_NS_FIXUP = 0x00400000,
			DOCHOSTUIFLAG_LOCAL_MACHINE_ACCESS_CHECK = 0x00800000,
			DOCHOSTUIFLAG_DISABLE_UNTRUSTEDPROTOCOL = 0x01000000

			#endregion
		}

		[ComImport, InterfaceType( ComInterfaceType.InterfaceIsIUnknown ), Guid( @"B722BCCB-4E68-101B-A2BC-00AA00404770" ), ComVisible( true )]
		public interface IOleCommandTarget
		{
			[return: MarshalAs( UnmanagedType.I4 )]
			[PreserveSig]
			int QueryStatus( ref Guid pguidCmdGroup, int cCmds, [In, Out] OLECMD prgCmds, [In, Out] IntPtr pCmdText );
			[return: MarshalAs( UnmanagedType.I4 )]
			[PreserveSig]
			int Exec( ref Guid pguidCmdGroup, int nCmdID, int nCmdexecopt, [In, MarshalAs( UnmanagedType.LPArray )] object[] pvaIn, int pvaOut );
		}

		[StructLayout( LayoutKind.Sequential )]
		public class OLECMD
		{
			[MarshalAs( UnmanagedType.U4 )]
			public int cmdID;
			[MarshalAs( UnmanagedType.U4 )]
			public int cmdf;
			//public OLECMD();
		}

		[Serializable, StructLayout( LayoutKind.Sequential )]
		public struct MSG
		{
			public IntPtr hwnd;
			public int message;
			public IntPtr wParam;
			public IntPtr lParam;
			public int time;
			public int pt_x;
			public int pt_y;
		}

		[StructLayout( LayoutKind.Sequential )]
		public class COMRECT
		{
			public int left;
			public int top;
			public int right;
			public int bottom;
			//public COMRECT();
			//public COMRECT(Rectangle r);
			//public COMRECT(int left, int top, int right, int bottom);
			//public static NativeMethods.COMRECT FromXYWH(int x, int y, int width, int height);
			//public override string ToString();
			public COMRECT()
			{
			}

			public COMRECT( Rectangle r )
			{
				left = r.X;
				top = r.Y;
				right = r.Right;
				bottom = r.Bottom;
			}

			public COMRECT( int left, int top, int right, int bottom )
			{
				this.left = left;
				this.top = top;
				this.right = right;
				this.bottom = bottom;
			}

			public static COMRECT FromXYWH( int x, int y, int width, int height )
			{
				return new COMRECT( x, y, x + width, y + height );
			}

			public override string ToString()
			{
				return string.Concat( new object[] 
				{ "Left = ", left, " Top ", top, " Right = ", right, " Bottom = ", bottom } );
			}
		}

		[StructLayout( LayoutKind.Sequential ), ComVisible( true )]
		public class DOCHOSTUIINFO
		{
			[MarshalAs( UnmanagedType.U4 )]
			public int cbSize;
			[MarshalAs( UnmanagedType.I4 )]
			public int dwFlags;
			[MarshalAs( UnmanagedType.I4 )]
			public int dwDoubleClick;
			[MarshalAs( UnmanagedType.I4 )]
			public int dwReserved1;
			[MarshalAs( UnmanagedType.I4 )]
			public int dwReserved2;
			//public DOCHOSTUIINFO();
			public DOCHOSTUIINFO()
			{
				cbSize = Marshal.SizeOf( typeof( DOCHOSTUIINFO ) );
			}
		}

		[StructLayout( LayoutKind.Sequential )]
		public sealed class tagOleMenuGroupWidths
		{
			[MarshalAs( UnmanagedType.ByValArray, SizeConst = 6 )]
			public int[] widths;
			//public tagOleMenuGroupWidths();
			public tagOleMenuGroupWidths()
			{
				widths = new int[6];
			}
		}
	}
}