For a C# enum see http://www.pinvoke.net/default.aspx/Enums/WindowsMessages.html

Definitions / Descriptions

C# Constants:

private const UInt32 WM_ACTIVATE           = 0x0006;
private const UInt32 WM_ACTIVATEAPP        = 0x001C;
private const UInt32 WM_AFXFIRST           = 0x0360;
private const UInt32 WM_AFXLAST        = 0x037F;
private const UInt32 WM_APP            = 0x8000;
private const UInt32 WM_ASKCBFORMATNAME    = 0x030C;
private const UInt32 WM_CANCELJOURNAL      = 0x004B;
private const UInt32 WM_CANCELMODE         = 0x001F;
private const UInt32 WM_CAPTURECHANGED     = 0x0215;
private const UInt32 WM_CHANGECBCHAIN      = 0x030D;
private const UInt32 WM_CHAR           = 0x0102;
private const UInt32 WM_CHARTOITEM         = 0x002F;
private const UInt32 WM_CHILDACTIVATE      = 0x0022;
private const UInt32 WM_CLEAR          = 0x0303;
private const UInt32 WM_CLOSE          = 0x0010;
private const UInt32 WM_COMMAND        = 0x0111;
private const UInt32 WM_COMPACTING         = 0x0041;
private const UInt32 WM_COMPAREITEM        = 0x0039;
private const UInt32 WM_CONTEXTMENU        = 0x007B;
private const UInt32 WM_COPY           = 0x0301;
private const UInt32 WM_COPYDATA           = 0x004A;
private const UInt32 WM_CREATE         = 0x0001;
private const UInt32 WM_CTLCOLORBTN        = 0x0135;
private const UInt32 WM_CTLCOLORDLG        = 0x0136;
private const UInt32 WM_CTLCOLOREDIT       = 0x0133;
private const UInt32 WM_CTLCOLORLISTBOX    = 0x0134;
private const UInt32 WM_CTLCOLORMSGBOX     = 0x0132;
private const UInt32 WM_CTLCOLORSCROLLBAR      = 0x0137;
private const UInt32 WM_CTLCOLORSTATIC     = 0x0138;
private const UInt32 WM_CUT            = 0x0300;
private const UInt32 WM_DEADCHAR           = 0x0103;
private const UInt32 WM_DELETEITEM         = 0x002D;
private const UInt32 WM_DESTROY        = 0x0002;
private const UInt32 WM_DESTROYCLIPBOARD       = 0x0307;
private const UInt32 WM_DEVICECHANGE       = 0x0219;
private const UInt32 WM_DEVMODECHANGE      = 0x001B;
private const UInt32 WM_DISPLAYCHANGE      = 0x007E;
private const UInt32 WM_DRAWCLIPBOARD      = 0x0308;
private const UInt32 WM_DRAWITEM           = 0x002B;
private const UInt32 WM_DROPFILES          = 0x0233;
private const UInt32 WM_ENABLE         = 0x000A;
private const UInt32 WM_ENDSESSION         = 0x0016;
private const UInt32 WM_ENTERIDLE          = 0x0121;
private const UInt32 WM_ENTERMENULOOP      = 0x0211;
private const UInt32 WM_ENTERSIZEMOVE      = 0x0231;
private const UInt32 WM_ERASEBKGND         = 0x0014;
private const UInt32 WM_EXITMENULOOP       = 0x0212;
private const UInt32 WM_EXITSIZEMOVE       = 0x0232;
private const UInt32 WM_FONTCHANGE         = 0x001D;
private const UInt32 WM_GETDLGCODE         = 0x0087;
private const UInt32 WM_GETFONT        = 0x0031;
private const UInt32 WM_GETHOTKEY          = 0x0033;
private const UInt32 WM_GETICON        = 0x007F;
private const UInt32 WM_GETMINMAXINFO      = 0x0024;
private const UInt32 WM_GETOBJECT          = 0x003D;
private const UInt32 WM_GETTEXT        = 0x000D;
private const UInt32 WM_GETTEXTLENGTH      = 0x000E;
private const UInt32 WM_HANDHELDFIRST      = 0x0358;
private const UInt32 WM_HANDHELDLAST       = 0x035F;
private const UInt32 WM_HELP           = 0x0053;
private const UInt32 WM_HOTKEY         = 0x0312;
private const UInt32 WM_HSCROLL        = 0x0114;
private const UInt32 WM_HSCROLLCLIPBOARD       = 0x030E;
private const UInt32 WM_ICONERASEBKGND     = 0x0027;
private const UInt32 WM_IME_CHAR           = 0x0286;
private const UInt32 WM_IME_COMPOSITION    = 0x010F;
private const UInt32 WM_IME_COMPOSITIONFULL    = 0x0284;
private const UInt32 WM_IME_CONTROL        = 0x0283;
private const UInt32 WM_IME_ENDCOMPOSITION     = 0x010E;
private const UInt32 WM_IME_KEYDOWN        = 0x0290;
private const UInt32 WM_IME_KEYLAST        = 0x010F;
private const UInt32 WM_IME_KEYUP          = 0x0291;
private const UInt32 WM_IME_NOTIFY         = 0x0282;
private const UInt32 WM_IME_REQUEST        = 0x0288;
private const UInt32 WM_IME_SELECT         = 0x0285;
private const UInt32 WM_IME_SETCONTEXT     = 0x0281;
private const UInt32 WM_IME_STARTCOMPOSITION   = 0x010D;
private const UInt32 WM_INITDIALOG         = 0x0110;
private const UInt32 WM_INITMENU           = 0x0116;
private const UInt32 WM_INITMENUPOPUP      = 0x0117;
private const UInt32 WM_INPUTLANGCHANGE    = 0x0051;
private const UInt32 WM_INPUTLANGCHANGEREQUEST = 0x0050;
private const UInt32 WM_KEYDOWN        = 0x0100;
private const UInt32 WM_KEYFIRST           = 0x0100;
private const UInt32 WM_KEYLAST        = 0x0108;
private const UInt32 WM_KEYUP          = 0x0101;
private const UInt32 WM_KILLFOCUS          = 0x0008;
private const UInt32 WM_LBUTTONDBLCLK      = 0x0203;
private const UInt32 WM_LBUTTONDOWN        = 0x0201;
private const UInt32 WM_LBUTTONUP          = 0x0202;
private const UInt32 WM_MBUTTONDBLCLK      = 0x0209;
private const UInt32 WM_MBUTTONDOWN        = 0x0207;
private const UInt32 WM_MBUTTONUP          = 0x0208;
private const UInt32 WM_MDIACTIVATE        = 0x0222;
private const UInt32 WM_MDICASCADE         = 0x0227;
private const UInt32 WM_MDICREATE          = 0x0220;
private const UInt32 WM_MDIDESTROY         = 0x0221;
private const UInt32 WM_MDIGETACTIVE       = 0x0229;
private const UInt32 WM_MDIICONARRANGE     = 0x0228;
private const UInt32 WM_MDIMAXIMIZE        = 0x0225;
private const UInt32 WM_MDINEXT        = 0x0224;
private const UInt32 WM_MDIREFRESHMENU     = 0x0234;
private const UInt32 WM_MDIRESTORE         = 0x0223;
private const UInt32 WM_MDISETMENU         = 0x0230;
private const UInt32 WM_MDITILE        = 0x0226;
private const UInt32 WM_MEASUREITEM        = 0x002C;
private const UInt32 WM_MENUCHAR           = 0x0120;
private const UInt32 WM_MENUCOMMAND        = 0x0126;
private const UInt32 WM_MENUDRAG           = 0x0123;
private const UInt32 WM_MENUGETOBJECT      = 0x0124;
private const UInt32 WM_MENURBUTTONUP      = 0x0122;
private const UInt32 WM_MENUSELECT         = 0x011F;
private const UInt32 WM_MOUSEACTIVATE      = 0x0021;
private const UInt32 WM_MOUSEFIRST         = 0x0200;
private const UInt32 WM_MOUSEHOVER         = 0x02A1;
private const UInt32 WM_MOUSELAST          = 0x020A;
private const UInt32 WM_MOUSELEAVE         = 0x02A3;
private const UInt32 WM_MOUSEMOVE          = 0x0200;
private const UInt32 WM_MOUSEWHEEL         = 0x020A;
private const UInt32 WM_MOVE           = 0x0003;
private const UInt32 WM_MOVING         = 0x0216;
private const UInt32 WM_NCACTIVATE         = 0x0086;
private const UInt32 WM_NCCALCSIZE         = 0x0083;
private const UInt32 WM_NCCREATE           = 0x0081;
private const UInt32 WM_NCDESTROY          = 0x0082;
private const UInt32 WM_NCHITTEST          = 0x0084;
private const UInt32 WM_NCLBUTTONDBLCLK    = 0x00A3;
private const UInt32 WM_NCLBUTTONDOWN      = 0x00A1;
private const UInt32 WM_NCLBUTTONUP        = 0x00A2;
private const UInt32 WM_NCMBUTTONDBLCLK    = 0x00A9;
private const UInt32 WM_NCMBUTTONDOWN      = 0x00A7;
private const UInt32 WM_NCMBUTTONUP        = 0x00A8;
private const UInt32 WM_NCMOUSEMOVE        = 0x00A0;
private const UInt32 WM_NCPAINT        = 0x0085;
private const UInt32 WM_NCRBUTTONDBLCLK    = 0x00A6;
private const UInt32 WM_NCRBUTTONDOWN      = 0x00A4;
private const UInt32 WM_NCRBUTTONUP        = 0x00A5;
private const UInt32 WM_NEXTDLGCTL         = 0x0028;
private const UInt32 WM_NEXTMENU           = 0x0213;
private const UInt32 WM_NOTIFY         = 0x004E;
private const UInt32 WM_NOTIFYFORMAT       = 0x0055;
private const UInt32 WM_NULL           = 0x0000;
private const UInt32 WM_PAINT          = 0x000F;
private const UInt32 WM_PAINTCLIPBOARD     = 0x0309;
private const UInt32 WM_PAINTICON          = 0x0026;
private const UInt32 WM_PALETTECHANGED     = 0x0311;
private const UInt32 WM_PALETTEISCHANGING      = 0x0310;
private const UInt32 WM_PARENTNOTIFY       = 0x0210;
private const UInt32 WM_PASTE          = 0x0302;
private const UInt32 WM_PENWINFIRST        = 0x0380;
private const UInt32 WM_PENWINLAST         = 0x038F;
private const UInt32 WM_POWER          = 0x0048;
private const UInt32 WM_POWERBROADCAST     = 0x0218;
private const UInt32 WM_PRINT          = 0x0317;
private const UInt32 WM_PRINTCLIENT        = 0x0318;
private const UInt32 WM_QUERYDRAGICON      = 0x0037;
private const UInt32 WM_QUERYENDSESSION    = 0x0011;
private const UInt32 WM_QUERYNEWPALETTE    = 0x030F;
private const UInt32 WM_QUERYOPEN          = 0x0013;
private const UInt32 WM_QUEUESYNC          = 0x0023;
private const UInt32 WM_QUIT           = 0x0012;
private const UInt32 WM_RBUTTONDBLCLK      = 0x0206;
private const UInt32 WM_RBUTTONDOWN        = 0x0204;
private const UInt32 WM_RBUTTONUP          = 0x0205;
private const UInt32 WM_RENDERALLFORMATS       = 0x0306;
private const UInt32 WM_RENDERFORMAT       = 0x0305;
private const UInt32 WM_SETCURSOR          = 0x0020;
private const UInt32 WM_SETFOCUS           = 0x0007;
private const UInt32 WM_SETFONT        = 0x0030;
private const UInt32 WM_SETHOTKEY          = 0x0032;
private const UInt32 WM_SETICON        = 0x0080;
private const UInt32 WM_SETREDRAW          = 0x000B;
private const UInt32 WM_SETTEXT        = 0x000C;
private const UInt32 WM_SETTINGCHANGE      = 0x001A;
private const UInt32 WM_SHOWWINDOW         = 0x0018;
private const UInt32 WM_SIZE           = 0x0005;
private const UInt32 WM_SIZECLIPBOARD      = 0x030B;
private const UInt32 WM_SIZING         = 0x0214;
private const UInt32 WM_SPOOLERSTATUS      = 0x002A;
private const UInt32 WM_STYLECHANGED       = 0x007D;
private const UInt32 WM_STYLECHANGING      = 0x007C;
private const UInt32 WM_SYNCPAINT          = 0x0088;
private const UInt32 WM_SYSCHAR        = 0x0106;
private const UInt32 WM_SYSCOLORCHANGE     = 0x0015;
private const UInt32 WM_SYSCOMMAND         = 0x0112;
private const UInt32 WM_SYSDEADCHAR        = 0x0107;
private const UInt32 WM_SYSKEYDOWN         = 0x0104;
private const UInt32 WM_SYSKEYUP           = 0x0105;
private const UInt32 WM_TCARD          = 0x0052;
private const UInt32 WM_TIMECHANGE         = 0x001E;
private const UInt32 WM_TIMER          = 0x0113;
private const UInt32 WM_UNDO           = 0x0304;
private const UInt32 WM_UNINITMENUPOPUP    = 0x0125;
private const UInt32 WM_USER           = 0x0400;
private const UInt32 WM_USERCHANGED        = 0x0054;
private const UInt32 WM_VKEYTOITEM         = 0x002E;
private const UInt32 WM_VSCROLL        = 0x0115;
private const UInt32 WM_VSCROLLCLIPBOARD       = 0x030A;
private const UInt32 WM_WINDOWPOSCHANGED       = 0x0047;
private const UInt32 WM_WINDOWPOSCHANGING      = 0x0046;
private const UInt32 WM_WININICHANGE       = 0x001A;

VB Constants:

Public Enum WndMsg
   WM_ACTIVATE = &H6
   WM_ACTIVATEAPP = &H1C
   WM_AFXFIRST = &H360
   WM_AFXLAST = &H37F
   WM_APP = &H8000
   WM_ASKCBFORMATNAME = &H30C
   WM_CANCELJOURNAL = &H4B
   WM_CANCELMODE = &H1F
   WM_CAPTURECHANGED = &H215
   WM_CHANGECBCHAIN = &H30D
   WM_CHAR = &H102
   WM_CHARTOITEM = &H2F
   WM_CHILDACTIVATE = &H22
   WM_CLEAR = &H303
   WM_CLOSE = &H10
   WM_COMMAND = &H111
   WM_COMPACTING = &H41
   WM_COMPAREITEM = &H39
   WM_CONTEXTMENU = &H7B
   WM_COPY = &H301
   WM_COPYDATA = &H4A
   WM_CREATE = &H1
   WM_CTLCOLORBTN = &H135
   WM_CTLCOLORDLG = &H136
   WM_CTLCOLOREDIT = &H133
   WM_CTLCOLORLISTBOX = &H134
   WM_CTLCOLORMSGBOX = &H132
   WM_CTLCOLORSCROLLBAR = &H137
   WM_CTLCOLORSTATIC = &H138
   WM_CUT = &H300
   WM_DEADCHAR = &H103
   WM_DELETEITEM = &H2D
   WM_DESTROY = &H2
   WM_DESTROYCLIPBOARD = &H307
   WM_DEVICECHANGE = &H219
   WM_DEVMODECHANGE = &H1B
   WM_DISPLAYCHANGE = &H7E
   WM_DRAWCLIPBOARD = &H308
   WM_DRAWITEM = &H2B
   WM_DROPFILES = &H233
   WM_ENABLE = &HA
   WM_ENDSESSION = &H16
   WM_ENTERIDLE = &H121
   WM_ENTERMENULOOP = &H211
   WM_ENTERSIZEMOVE = &H231
   WM_ERASEBKGND = &H14
   WM_EXITMENULOOP = &H212
   WM_EXITSIZEMOVE = &H232
   WM_FONTCHANGE = &H1D
   WM_GETDLGCODE = &H87
   WM_GETFONT = &H31
   WM_GETHOTKEY = &H33
   WM_GETICON = &H7F
   WM_GETMINMAXINFO = &H24
   WM_GETOBJECT = &H3D
   WM_GETTEXT = &HD
   WM_GETTEXTLENGTH = &HE
   WM_HANDHELDFIRST = &H358
   WM_HANDHELDLAST = &H35F
   WM_HELP = &H53
   WM_HOTKEY = &H312
   WM_HSCROLL = &H114
   WM_HSCROLLCLIPBOARD = &H30E
   WM_ICONERASEBKGND = &H27
   WM_IME_CHAR = &H286
   WM_IME_COMPOSITION = &H10F
   WM_IME_COMPOSITIONFULL = &H284
   WM_IME_CONTROL = &H283
   WM_IME_ENDCOMPOSITION = &H10E
   WM_IME_KEYDOWN = &H290
   WM_IME_KEYLAST = &H10F
   WM_IME_KEYUP = &H291
   WM_IME_NOTIFY = &H282
   WM_IME_REQUEST = &H288
   WM_IME_SELECT = &H285
   WM_IME_SETCONTEXT = &H281
   WM_IME_STARTCOMPOSITION = &H10D
   WM_INITDIALOG = &H110
   WM_INITMENU = &H116
   WM_INITMENUPOPUP = &H117
   WM_INPUTLANGCHANGE = &H51
   WM_INPUTLANGCHANGEREQUEST = &H50
   WM_KEYDOWN = &H100
   WM_KEYFIRST = &H100
   WM_KEYLAST = &H108
   WM_KEYUP = &H101
   WM_KILLFOCUS = &H8
   WM_LBUTTONDBLCLK = &H203
   WM_LBUTTONDOWN = &H201
   WM_LBUTTONUP = &H202
   WM_MBUTTONDBLCLK = &H209
   WM_MBUTTONDOWN = &H207
   WM_MBUTTONUP = &H208
   WM_MDIACTIVATE = &H222
   WM_MDICASCADE = &H227
   WM_MDICREATE = &H220
   WM_MDIDESTROY = &H221
   WM_MDIGETACTIVE = &H229
   WM_MDIICONARRANGE = &H228
   WM_MDIMAXIMIZE = &H225
   WM_MDINEXT = &H224
   WM_MDIREFRESHMENU = &H234
   WM_MDIRESTORE = &H223
   WM_MDISETMENU = &H230
   WM_MDITILE = &H226
   WM_MEASUREITEM = &H2C
   WM_MENUCHAR = &H120
   WM_MENUCOMMAND = &H126
   WM_MENUDRAG = &H123
   WM_MENUGETOBJECT = &H124
   WM_MENURBUTTONUP = &H122
   WM_MENUSELECT = &H11F
   WM_MOUSEACTIVATE = &H21
   WM_MOUSEFIRST = &H200
   WM_MOUSEHOVER = &H2A1
   WM_MOUSELAST = &H20A
   WM_MOUSELEAVE = &H2A3
   WM_MOUSEMOVE = &H200
   WM_MOUSEWHEEL = &H20A
   WM_MOVE = &H3
   WM_MOVING = &H216
   WM_NCACTIVATE = &H86
   WM_NCCALCSIZE = &H83
   WM_NCCREATE = &H81
   WM_NCDESTROY = &H82
   WM_NCHITTEST = &H84
   WM_NCLBUTTONDBLCLK = &HA3
   WM_NCLBUTTONDOWN = &HA1
   WM_NCLBUTTONUP = &HA2
   WM_NCMBUTTONDBLCLK = &HA9
   WM_NCMBUTTONDOWN = &HA7
   WM_NCMBUTTONUP = &HA8
   WM_NCMOUSEMOVE = &HA0
   WM_NCPAINT = &H85
   WM_NCRBUTTONDBLCLK = &HA6
   WM_NCRBUTTONDOWN = &HA4
   WM_NCRBUTTONUP = &HA5
   WM_NEXTDLGCTL = &H28
   WM_NEXTMENU = &H213
   WM_NOTIFY = &H4E
   WM_NOTIFYFORMAT = &H55
   WM_NULL = &H0
   WM_PAINT = &HF
   WM_PAINTCLIPBOARD = &H309
   WM_PAINTICON = &H26
   WM_PALETTECHANGED = &H311
   WM_PALETTEISCHANGING = &H310
   WM_PARENTNOTIFY = &H210
   WM_PASTE = &H302
   WM_PENWINFIRST = &H380
   WM_PENWINLAST = &H38F
   WM_POWER = &H48
   WM_POWERBROADCAST = &H218
   WM_PRINT = &H317
   WM_PRINTCLIENT = &H318
   WM_QUERYDRAGICON = &H37
   WM_QUERYENDSESSION = &H11
   WM_QUERYNEWPALETTE = &H30F
   WM_QUERYOPEN = &H13
   WM_QUEUESYNC = &H23
   WM_QUIT = &H12
   WM_RBUTTONDBLCLK = &H206
   WM_RBUTTONDOWN = &H204
   WM_RBUTTONUP = &H205
   WM_RENDERALLFORMATS = &H306
   WM_RENDERFORMAT = &H305
   WM_SETCURSOR = &H20
   WM_SETFOCUS = &H7
   WM_SETFONT = &H30
   WM_SETHOTKEY = &H32
   WM_SETICON = &H80
   WM_SETREDRAW = &HB
   WM_SETTEXT = &HC
   WM_SETTINGCHANGE = &H1A
   WM_SHOWWINDOW = &H18
   WM_SIZE = &H5
   WM_SIZECLIPBOARD = &H30B
   WM_SIZING = &H214
   WM_SPOOLERSTATUS = &H2A
   WM_STYLECHANGED = &H7D
   WM_STYLECHANGING = &H7C
   WM_SYNCPAINT = &H88
   WM_SYSCHAR = &H106
   WM_SYSCOLORCHANGE = &H15
   WM_SYSCOMMAND = &H112
   WM_SYSDEADCHAR = &H107
   WM_SYSKEYDOWN = &H104
   WM_SYSKEYUP = &H105
   WM_TCARD = &H52
   WM_TIMECHANGE = &H1E
   WM_TIMER = &H113
   WM_UNDO = &H304
   WM_UNINITMENUPOPUP = &H125
   WM_USER = &H400
   WM_USERCHANGED = &H54
   WM_VKEYTOITEM = &H2E
   WM_VSCROLL = &H115
   WM_VSCROLLCLIPBOARD = &H30A
   WM_WINDOWPOSCHANGED = &H47
   WM_WINDOWPOSCHANGING = &H46
   WM_WININICHANGE = &H1A
End Enum

Notes:

None.

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