class/System.Design/System.Windows.Forms.Design/Native.cs

   1 //
   2 // System.Windows.Forms.Design.Native
   3 //
   4 // Authors:
   5 //        Ivan N. Zlatev (contact i-nZ.net)
   6 //
   7 // (C) 2006-2007 Ivan N. Zlatev
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Drawing;
  31 using System.Windows.Forms;
  32 using System.Runtime.InteropServices;
  33 using System.Reflection;
  34
  35
  36 namespace System.Windows.Forms.Design
  37 {
  38
  39         internal class Native
  40         {
  41
  42                 private static Type _xplatuiType;
  43
  44                 static Native ()
  45                 {
  46                         Assembly assembly = Assembly.Load (Consts.AssemblySystem_Windows_Forms);
  47                         if (assembly == null)
  48                                 throw new InvalidOperationException ("Can't load System.Windows.Forms assembly.");
  49
  50                         _xplatuiType = assembly.GetType ("System.Windows.Forms.XplatUI");
  51                         if (_xplatuiType == null)
  52                                 throw new InvalidOperationException ("Can't find the System.Windows.Forms.XplatUI type.");
  53                 }
  54
  55                 private static object InvokeMethod (string methodName, object[] args)
  56                 {
  57                         return InvokeMethod (methodName, args, null);
  58                 }
  59
  60                 // will also match types
  61                 private static object InvokeMethod (string methodName, object[] args, Type[] types)
  62                 {
  63                         MethodInfo method = null;
  64
  65                         if (types != null) {
  66                                 method = _xplatuiType.GetMethod (methodName, BindingFlags.NonPublic | BindingFlags.Static |
  67                                                                                                                                 BindingFlags.InvokeMethod, null, types, null);
  68                         } else {
  69                                 method = _xplatuiType.GetMethod (methodName, BindingFlags.NonPublic | BindingFlags.Static |
  70                                                                                                  BindingFlags.InvokeMethod);
  71                         }
  72
  73                         if (method == null)
  74                                 throw new InvalidOperationException (methodName + " not found!");
  75
  76                         return method.Invoke (null, args);
  77                 }
  78
  79                 public static void DefWndProc (ref Message m)
  80                 {
  81                         object[] args = new object[] { m };
  82                         m.Result = (IntPtr) InvokeMethod ("DefWndProc", args);
  83                         m = (Message) args[0];
  84                 }
  85
  86                 public static IntPtr SendMessage (IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam)
  87                 {
  88
  89                         Assembly assembly = Assembly.Load (Consts.AssemblySystem_Windows_Forms);
  90                         Type refType = assembly.GetType ("System.Windows.Forms.Message&");
  91                         object[] args = new object[] { Message.Create (hwnd, (int)message, wParam, lParam) };
  92                         InvokeMethod ("SendMessage", args, new Type[] { refType });
  93                         return ((Message)args[0]).Result;
  94                 }
  95
  96                 public static Point PointToClient (Control control, Point point)
  97                 {
  98                         if (control == null)
  99                                 throw new ArgumentNullException ("control");
 100
 101                         object[] args = new object[] { control.Handle, point.X, point.Y };
 102                         InvokeMethod ("ScreenToClient", args);
 103                         return new Point ((int) args[1], (int) args[2]);
 104                 }
 105
 106                 public static IntPtr SetParent (IntPtr childHandle, IntPtr parentHandle)
 107                 {
 108                         return (IntPtr) InvokeMethod ("SetParent", new object[] { childHandle, parentHandle });
 109                 }
 110
 111
 112 #region Helpers
 113                 public static int HiWord (int dword)
 114                 {
 115                         // 12345678 -> 12340000 -> 00001234
 116                         return ((dword >> 16) & 0x0000ffff);
 117                 }
 118
 119                 public static int LoWord (int dword)
 120                 {
 121                         // 12345678 -> 00005678
 122                         return (dword & 0x0000ffff);
 123                 }
 124
 125                 public static IntPtr LParam (int hiword, int loword)
 126                 {
 127                         // results [hiword|loword] dword
 128                         //
 129                         return (IntPtr)((loword << 16) | (hiword & 0x0000FFFF));
 130                 }
 131 #endregion
 132
 133                 public enum Msg {
 134                         WM_CREATE                                = 0x0001,
 135                         WM_SETFOCUS                        = 0x0007,
 136                         WM_PAINT                                  = 0X000F,
 137                         WM_CANCELMODE                    = 0x001F,
 138                         WM_SETCURSOR                      = 0x0020,
 139                         WM_CONTEXTMENU                  = 0x007B,
 140                         WM_NCHITTEST                      = 0x0084,
 141                         //
 142                         // AccessabilityObject
 143                         //
 144                         WM_GETOBJECT                      = 0x003D,
 145                         //
 146                         // Mouse input - Client area
 147                         //
 148                         WM_MOUSEFIRST                    = 0x0200,
 149                         WM_MOUSEMOVE                      = 0x0200,
 150                         WM_LBUTTONDOWN                  = 0x0201,
 151                         WM_LBUTTONUP                      = 0x0202,
 152                         WM_LBUTTONDBLCLK                  = 0x0203,
 153                         WM_RBUTTONDOWN                  = 0x0204,
 154                         WM_RBUTTONUP                      = 0x0205,
 155                         WM_RBUTTONDBLCLK                  = 0x0206,
 156                         WM_MBUTTONDOWN                  = 0x0207,
 157                         WM_MBUTTONUP                      = 0x0208,
 158                         WM_MBUTTONDBLCLK                  = 0x0209,
 159                         WM_MOUSEWHEEL                    = 0x020A,
 160                         WM_MOUSELAST                      = 0x020A,
 161                         WM_NCMOUSEHOVER            = 0x02A0,
 162                         WM_MOUSEHOVER                    = 0x02A1,
 163                         WM_NCMOUSELEAVE            = 0x02A2,
 164                         WM_MOUSELEAVE                    = 0x02A3,
 165                         //
 166                         // Mouse input - Non-client area
 167                         //
 168                         WM_NCMOUSEMOVE                  = 0x00A0,
 169                         WM_NCLBUTTONDOWN                  = 0x00A1,
 170                         WM_NCLBUTTONUP                  = 0x00A2,
 171                         WM_NCLBUTTONDBLCLK              = 0x00A3,
 172                         WM_NCRBUTTONDOWN                  = 0x00A4,
 173                         WM_NCRBUTTONUP                  = 0x00A5,
 174                         WM_NCRBUTTONDBLCLK              = 0x00A6,
 175                         WM_NCMBUTTONDOWN                  = 0x00A7,
 176                         WM_NCMBUTTONUP                  = 0x00A8,
 177                         WM_NCMBUTTONDBLCLK              = 0x00A9,
 178                         //
 179                         // Keyboard input
 180                         //
 181                         WM_KEYFIRST        = 0x0100,
 182                         WM_KEYDOWN              = 0x0100,
 183                         WM_KEYUP                  = 0x0101,
 184                         WM_CHAR            = 0x0102,
 185                         WM_DEADCHAR        = 0x0103,
 186                         WM_SYSKEYDOWN    = 0x0104,
 187                         WM_SYSKEYUP        = 0x0105,
 188                         WM_SYS1CHAR        = 0x0106,
 189                         WM_SYSDEADCHAR  = 0x0107,
 190                         WM_KEYLAST              = 0x0108,
 191                         //
 192                         // Scrolling
 193                         //
 194                         WM_HSCROLL              = 0x0114,
 195                         WM_VSCROLL              = 0x0115,
 196
 197                         //
 198                         // IME - International Text
 199                         //
 200                         WM_IME_SETCONTEXT                = 0x0281,
 201                         WM_IME_NOTIFY                    = 0x0282,
 202                         WM_IME_CONTROL                  = 0x0283,
 203                         WM_IME_COMPOSITIONFULL  = 0x0284,
 204                         WM_IME_SELECT                    = 0x0285,
 205                         WM_IME_CHAR                        = 0x0286,
 206                         WM_IME_REQUEST                  = 0x0288,
 207                         WM_IME_KEYDOWN                  = 0x0290,
 208                         WM_IME_KEYUP                      = 0x0291,
 209
 210                         // MWF Custom msgs
 211                         //
 212                         WM_MOUSE_ENTER                  = 0x0401,
 213                 }
 214         }
 215 }
 216