List of Windows Messages

Below is a list of values for the Msg parameter of PostMessage and SendMessage. To discover more about how to use a particular message (e.g. WM_VSCROLL), look it up at http://msdn.microsoft.com or with a search engine of your choice. Also, check out the Message Tutorial.

WM_NULL := 0x00
WM_CREATE := 0x01
WM_DESTROY := 0x02
WM_MOVE := 0x03
WM_SIZE := 0x05
WM_ACTIVATE := 0x06
WM_SETFOCUS := 0x07
WM_KILLFOCUS := 0x08
WM_ENABLE := 0x0A
WM_SETREDRAW := 0x0B
WM_SETTEXT := 0x0C
WM_GETTEXT := 0x0D
WM_GETTEXTLENGTH := 0x0E
WM_PAINT := 0x0F
WM_CLOSE := 0x10
WM_QUERYENDSESSION := 0x11
WM_QUIT := 0x12
WM_QUERYOPEN := 0x13
WM_ERASEBKGND := 0x14
WM_SYSCOLORCHANGE := 0x15
WM_ENDSESSION := 0x16
WM_SYSTEMERROR := 0x17
WM_SHOWWINDOW := 0x18
WM_CTLCOLOR := 0x19
WM_WININICHANGE := 0x1A
WM_SETTINGCHANGE := 0x1A
WM_DEVMODECHANGE := 0x1B
WM_ACTIVATEAPP := 0x1C
WM_FONTCHANGE := 0x1D
WM_TIMECHANGE := 0x1E
WM_CANCELMODE := 0x1F
WM_SETCURSOR := 0x20
WM_MOUSEACTIVATE := 0x21
WM_CHILDACTIVATE := 0x22
WM_QUEUESYNC := 0x23
WM_GETMINMAXINFO := 0x24
WM_PAINTICON := 0x26
WM_ICONERASEBKGND := 0x27
WM_NEXTDLGCTL := 0x28
WM_SPOOLERSTATUS := 0x2A
WM_DRAWITEM := 0x2B
WM_MEASUREITEM := 0x2C
WM_DELETEITEM := 0x2D
WM_VKEYTOITEM := 0x2E
WM_CHARTOITEM := 0x2F

WM_SETFONT := 0x30
WM_GETFONT := 0x31
WM_SETHOTKEY := 0x32
WM_GETHOTKEY := 0x33
WM_QUERYDRAGICON := 0x37
WM_COMPAREITEM := 0x39
WM_COMPACTING := 0x41
WM_WINDOWPOSCHANGING := 0x46
WM_WINDOWPOSCHANGED := 0x47
WM_POWER := 0x48
WM_COPYDATA := 0x4A
WM_CANCELJOURNAL := 0x4B
WM_NOTIFY := 0x4E
WM_INPUTLANGCHANGEREQUEST := 0x50
WM_INPUTLANGCHANGE := 0x51
WM_TCARD := 0x52
WM_HELP := 0x53
WM_USERCHANGED := 0x54
WM_NOTIFYFORMAT := 0x55
WM_CONTEXTMENU := 0x7B
WM_STYLECHANGING := 0x7C
WM_STYLECHANGED := 0x7D
WM_DISPLAYCHANGE := 0x7E
WM_GETICON := 0x7F
WM_SETICON := 0x80

WM_NCCREATE := 0x81
WM_NCDESTROY := 0x82
WM_NCCALCSIZE := 0x83
WM_NCHITTEST := 0x84
WM_NCPAINT := 0x85
WM_NCACTIVATE := 0x86
WM_GETDLGCODE := 0x87
WM_NCMOUSEMOVE := 0xA0
WM_NCLBUTTONDOWN := 0xA1
WM_NCLBUTTONUP := 0xA2
WM_NCLBUTTONDBLCLK := 0xA3
WM_NCRBUTTONDOWN := 0xA4
WM_NCRBUTTONUP := 0xA5
WM_NCRBUTTONDBLCLK := 0xA6
WM_NCMBUTTONDOWN := 0xA7
WM_NCMBUTTONUP := 0xA8
WM_NCMBUTTONDBLCLK := 0xA9

WM_KEYFIRST := 0x100
WM_KEYDOWN := 0x100
WM_KEYUP := 0x101
WM_CHAR := 0x102
WM_DEADCHAR := 0x103
WM_SYSKEYDOWN := 0x104
WM_SYSKEYUP := 0x105
WM_SYSCHAR := 0x106
WM_SYSDEADCHAR := 0x107
WM_KEYLAST := 0x108

WM_IME_STARTCOMPOSITION := 0x10D
WM_IME_ENDCOMPOSITION := 0x10E
WM_IME_COMPOSITION := 0x10F
WM_IME_KEYLAST := 0x10F

WM_INITDIALOG := 0x110
WM_COMMAND := 0x111
WM_SYSCOMMAND := 0x112
WM_TIMER := 0x113
WM_HSCROLL := 0x114
WM_VSCROLL := 0x115
WM_INITMENU := 0x116
WM_INITMENUPOPUP := 0x117
WM_MENUSELECT := 0x11F
WM_MENUCHAR := 0x120
WM_ENTERIDLE := 0x121

WM_CTLCOLORMSGBOX := 0x132
WM_CTLCOLOREDIT := 0x133
WM_CTLCOLORLISTBOX := 0x134
WM_CTLCOLORBTN := 0x135
WM_CTLCOLORDLG := 0x136
WM_CTLCOLORSCROLLBAR := 0x137
WM_CTLCOLORSTATIC := 0x138

WM_MOUSEFIRST := 0x200
WM_MOUSEMOVE := 0x200
WM_LBUTTONDOWN := 0x201
WM_LBUTTONUP := 0x202
WM_LBUTTONDBLCLK := 0x203
WM_RBUTTONDOWN := 0x204
WM_RBUTTONUP := 0x205
WM_RBUTTONDBLCLK := 0x206
WM_MBUTTONDOWN := 0x207
WM_MBUTTONUP := 0x208
WM_MBUTTONDBLCLK := 0x209
WM_MOUSEWHEEL := 0x20A
WM_MOUSEHWHEEL := 0x20E

WM_PARENTNOTIFY := 0x210
WM_ENTERMENULOOP := 0x211
WM_EXITMENULOOP := 0x212
WM_NEXTMENU := 0x213
WM_SIZING := 0x214
WM_CAPTURECHANGED := 0x215
WM_MOVING := 0x216
WM_POWERBROADCAST := 0x218
WM_DEVICECHANGE := 0x219

WM_MDICREATE := 0x220
WM_MDIDESTROY := 0x221
WM_MDIACTIVATE := 0x222
WM_MDIRESTORE := 0x223
WM_MDINEXT := 0x224
WM_MDIMAXIMIZE := 0x225
WM_MDITILE := 0x226
WM_MDICASCADE := 0x227
WM_MDIICONARRANGE := 0x228
WM_MDIGETACTIVE := 0x229
WM_MDISETMENU := 0x230
WM_ENTERSIZEMOVE := 0x231
WM_EXITSIZEMOVE := 0x232
WM_DROPFILES := 0x233
WM_MDIREFRESHMENU := 0x234

WM_IME_SETCONTEXT := 0x281
WM_IME_NOTIFY := 0x282
WM_IME_CONTROL := 0x283
WM_IME_COMPOSITIONFULL := 0x284
WM_IME_SELECT := 0x285
WM_IME_CHAR := 0x286
WM_IME_KEYDOWN := 0x290
WM_IME_KEYUP := 0x291

WM_MOUSEHOVER := 0x2A1
WM_NCMOUSELEAVE := 0x2A2
WM_MOUSELEAVE := 0x2A3

WM_CUT := 0x300
WM_COPY := 0x301
WM_PASTE := 0x302
WM_CLEAR := 0x303
WM_UNDO := 0x304

WM_RENDERFORMAT := 0x305
WM_RENDERALLFORMATS := 0x306
WM_DESTROYCLIPBOARD := 0x307
WM_DRAWCLIPBOARD := 0x308
WM_PAINTCLIPBOARD := 0x309
WM_VSCROLLCLIPBOARD := 0x30A
WM_SIZECLIPBOARD := 0x30B
WM_ASKCBFORMATNAME := 0x30C
WM_CHANGECBCHAIN := 0x30D
WM_HSCROLLCLIPBOARD := 0x30E
WM_QUERYNEWPALETTE := 0x30F
WM_PALETTEISCHANGING := 0x310
WM_PALETTECHANGED := 0x311

WM_HOTKEY := 0x312
WM_PRINT := 0x317
WM_PRINTCLIENT := 0x318

WM_HANDHELDFIRST := 0x358
WM_HANDHELDLAST := 0x35F
WM_PENWINFIRST := 0x380
WM_PENWINLAST := 0x38F
WM_COALESCE_FIRST := 0x390
WM_COALESCE_LAST := 0x39F
WM_DDE_FIRST := 0x3E0
WM_DDE_INITIATE := 0x3E0
WM_DDE_TERMINATE := 0x3E1
WM_DDE_ADVISE := 0x3E2
WM_DDE_UNADVISE := 0x3E3
WM_DDE_ACK := 0x3E4
WM_DDE_DATA := 0x3E5
WM_DDE_REQUEST := 0x3E6
WM_DDE_POKE := 0x3E7
WM_DDE_EXECUTE := 0x3E8
WM_DDE_LAST := 0x3E8

WM_USER := 0x400
WM_APP := 0x8000