function WM_To_String(WM_Message: Integer): string;

begin

case WM_Message of

$0000: Result := 'WM_NULL';

$0001: Result := 'WM_CREATE';

$0002: Result := 'WM_DESTROY';

$0003: Result := 'WM_MOVE';

$0005: Result := 'WM_SIZE';

$0006: Result := 'WM_ACTIVATE';

$0007: Result := 'WM_SETFOCUS';

$0008: Result := 'WM_KILLFOCUS';

$000A: Result := 'WM_ENABLE';

$000B: Result := 'WM_SETREDRAW';

$000C: Result := 'WM_SETTEXT';

$000D: Result := 'WM_GETTEXT';

$000E: Result := 'WM_GETTEXTLENGTH';

$000F: Result := 'WM_PAINT';

$0010: Result := 'WM_CLOSE';

$0011: Result := 'WM_QUERYENDSESSION';

$0012: Result := 'WM_QUIT';

$0013: Result := 'WM_QUERYOPEN';

$0014: Result := 'WM_ERASEBKGND';

$0015: Result := 'WM_SYSCOLORCHANGE';

$0016: Result := 'WM_EndSESSION';

$0017: Result := 'WM_SYSTEMERROR';

$0018: Result := 'WM_SHOWWINDOW';

$0019: Result := 'WM_CTLCOLOR';

$001A: Result := 'WM_WININICHANGE or WM_SETTINGCHANGE';

$001B: Result := 'WM_DEVMODECHANGE';

$001C: Result := 'WM_ACTIVATEAPP';

$001D: Result := 'WM_FONTCHANGE';

$001E: Result := 'WM_TIMECHANGE';

$001F: Result := 'WM_CANCELMODE';

$0020: Result := 'WM_SETCURSOR';

$0021: Result := 'WM_MOUSEACTIVATE';

$0022: Result := 'WM_CHILDACTIVATE';

$0023: Result := 'WM_QUEUESYNC';

$0024: Result := 'WM_GETMINMAXINFO';

$0026: Result := 'WM_PAINTICON';

$0027: Result := 'WM_ICONERASEBKGND';

$0028: Result := 'WM_NEXTDLGCTL';

$002A: Result := 'WM_SPOOLERSTATUS';

$002B: Result := 'WM_DRAWITEM';

$002C: Result := 'WM_MEASUREITEM';

$002D: Result := 'WM_DELETEITEM';

$002E: Result := 'WM_VKEYTOITEM';

$002F: Result := 'WM_CHARTOITEM';

$0030: Result := 'WM_SETFONT';

$0031: Result := 'WM_GETFONT';

$0032: Result := 'WM_SETHOTKEY';

$0033: Result := 'WM_GETHOTKEY';

$0037: Result := 'WM_QUERYDRAGICON';

$0039: Result := 'WM_COMPAREITEM';

$003D: Result := 'WM_GETOBJECT';

$0041: Result := 'WM_COMPACTING';

$0044: Result := 'WM_COMMNOTIFY { obsolete in Win32}';

$0046: Result := 'WM_WINDOWPOSCHANGING';

$0047: Result := 'WM_WINDOWPOSCHANGED';

$0048: Result := 'WM_POWER';

$004A: Result := 'WM_COPYDATA';

$004B: Result := 'WM_CANCELJOURNAL';

$004E: Result := 'WM_NOTIFY';

$0050: Result := 'WM_INPUTLANGCHANGEREQUEST';

$0051: Result := 'WM_INPUTLANGCHANGE';

$0052: Result := 'WM_TCARD';

$0053: Result := 'WM_HELP';

$0054: Result := 'WM_USERCHANGED';

$0055: Result := 'WM_NOTIFYFORMAT';

$007B: Result := 'WM_CONTEXTMENU';

$007C: Result := 'WM_STYLECHANGING';

$007D: Result := 'WM_STYLECHANGED';

$007E: Result := 'WM_DISPLAYCHANGE';

$007F: Result := 'WM_GETICON';

$0080: Result := 'WM_SETICON';

$0081: Result := 'WM_NCCREATE';

$0082: Result := 'WM_NCDESTROY';

$0083: Result := 'WM_NCCALCSIZE';

$0084: Result := 'WM_NCHITTEST';

$0085: Result := 'WM_NCPAINT';

$0086: Result := 'WM_NCACTIVATE';

$0087: Result := 'WM_GETDLGCODE';

$0088: Result := 'WM_SYNCPAINT';

$00A0: Result := 'WM_NCMOUSEMOVE';

$00A1: Result := 'WM_NCLBUTTONDOWN';

$00A2: Result := 'WM_NCLBUTTONUP';

$00A3: Result := 'WM_NCLBUTTONDBLCLK';

$00A4: Result := 'WM_NCRBUTTONDOWN';

$00A5: Result := 'WM_NCRBUTTONUP';

$00A6: Result := 'WM_NCRBUTTONDBLCLK';

$00A7: Result := 'WM_NCMBUTTONDOWN';

$00A8: Result := 'WM_NCMBUTTONUP';

$00A9: Result := 'WM_NCMBUTTONDBLCLK';

// edit control messages start (todo: add more if needed)

$00B0: Result := 'EM_GETSEL';

$00B1: Result := 'EM_SETSEL';

$00B2: Result := 'EM_GETRECT';

$00B3: Result := 'EM_SETRECT';

$00B4: Result := 'EM_SETRECTNP';

$00B5: Result := 'EM_SCROLL';

$00B6: Result := 'EM_LINESCROLL';

$00B7: Result := 'EM_SCROLLCARET';

$00B8: Result := 'EM_GETMODIFY';

$00B9: Result := 'EM_SETMODIFY';

$00BA: Result := 'EM_GETLINECOUNT';

$00BB: Result := 'EM_LINEINDEX';

$00BC: Result := 'EM_SETHANDLE';

$00BD: Result := 'EM_GETHANDLE';

$00BE: Result := 'EM_GETTHUMB';

$00C1: Result := 'EM_LINELENGTH';

$00C2: Result := 'EM_REPLACESEL';

$00C4: Result := 'EM_GETLINE';

$00C5: Result := 'EM_LIMITTEXT';

$00C6: Result := 'EM_CANUNDO';

$00C7: Result := 'EM_UNDO';

$00C8: Result := 'EM_FMTLINES';

$00C9: Result := 'EM_LINEFROMCHAR';

$00CB: Result := 'EM_SETTABSTOPS';

$00CC: Result := 'EM_SETPASSWORDCHAR';

$00CD: Result := 'EM_EMPTYUNDOBUFFER';

$00CE: Result := 'EM_GETFIRSTVISIBLELINE';

$00CF: Result := 'EM_SETREADONLY';

$00D0: Result := 'EM_SETWORDBREAKPROC';

$00D1: Result := 'EM_GETWORDBREAKPROC';

$00D2: Result := 'EM_GETPASSWORDCHAR';

$00D3: Result := 'EM_SETMARGINS';

$00D4: Result := 'EM_GETMARGINS';

$00D5: Result := 'EM_GETLIMITTEXT';

$00D6: Result := 'EM_POSFROMCHAR';

$00D7: Result := 'EM_CHARFROMPOS';

// edit control messages end

// scrollbar control messages start

$00E0: Result := 'SBM_SETPOS';

$00E1: Result := 'SBM_GETPOS';

$00E2: Result := 'SBM_SETRANGE';

$00E3: Result := 'SBM_GETRANGE';

$00E4: Result := 'SBM_ENABLE_ARROWS';

$00E6: Result := 'SBM_SETRANGEREDRAW';

$00E9: Result := 'SBM_SETSCROLLINFO';

$00EA: Result := 'SBM_GETSCROLLINFO';

$00EB: Result := 'SBM_GETSCROLLBARINFO';

// scrollbar control messages end

// button control messages start

$00F0: Result := 'BM_GETCHECK';

$00F1: Result := 'BM_SETCHECK';

$00F2: Result := 'BM_GETSTATE';

$00F3: Result := 'BM_SETSTATE';

$00F4: Result := 'BM_SETSTYLE';

$00F5: Result := 'BM_CLICK';

$00F6: Result := 'BM_GETIMAGE';

$00F7: Result := 'BM_SETIMAGE';

$00F8: Result := 'BM_SETDONTCLICK';

// button control messages end

$0100: Result := 'WM_KEYFIRST or WM_KEYDOWN';

$0101: Result := 'WM_KEYUP';

$0102: Result := 'WM_CHAR';

$0103: Result := 'WM_DEADCHAR';

$0104: Result := 'WM_SYSKEYDOWN';

$0105: Result := 'WM_SYSKEYUP';

$0106: Result := 'WM_SYSCHAR';

$0107: Result := 'WM_SYSDEADCHAR';

$0108: Result := 'WM_KEYLAST';

$010D: Result := 'WM_IME_STARTCOMPOSITION';

$010E: Result := 'WM_IME_ENDCOMPOSITION';

$010F: Result := 'WM_IME_COMPOSITION or WM_IME_KEYLAST';

$0110: Result := 'WM_INITDIALOG';

$0111: Result := 'WM_COMMAND';

$0112: Result := 'WM_SYSCOMMAND';

$0113: Result := 'WM_TIMER';

$0114: Result := 'WM_HSCROLL';

$0115: Result := 'WM_VSCROLL';

$0116: Result := 'WM_INITMENU';

$0117: Result := 'WM_INITMENUPOPUP';

$011F: Result := 'WM_MENUSELECT';

$0120: Result := 'WM_MENUCHAR';

$0121: Result := 'WM_ENTERIDLE';

$0122: Result := 'WM_MENURBUTTONUP';

$0123: Result := 'WM_MENUDRAG';

$0124: Result := 'WM_MENUGETOBJECT';

$0125: Result := 'WM_UNINITMENUPOPUP';

$0126: Result := 'WM_MENUCOMMAND';

$0127: Result := 'WM_CHANGEUISTATE';

$0128: Result := 'WM_UPDATEUISTATE';

$0129: Result := 'WM_QUERYUISTATE';

$0132: Result := 'WM_CTLCOLORMSGBOX';

$0133: Result := 'WM_CTLCOLOREDIT';

$0134: Result := 'WM_CTLCOLORLISTBOX';

$0135: Result := 'WM_CTLCOLORBTN';

$0136: Result := 'WM_CTLCOLORDLG';

$0137: Result := 'WM_CTLCOLORSCROLLBAR';

$0138: Result := 'WM_CTLCOLORSTATIC';

$0140: Result := 'CB_GETEDITSEL';

$0141: Result := 'CB_LIMITTEXT';

$0142: Result := 'CB_SETEDITSEL';

$0143: Result := 'CB_ADDSTRING';

$0144: Result := 'CB_DELETESTRING';

$0145: Result := 'CB_DIR';

$0146: Result := 'CB_GETCOUNT';

$0147: Result := 'CB_GETCURSEL';

$0148: Result := 'CB_GETLBTEXT';

$0149: Result := 'CB_GETLBTEXTLEN';

$014A: Result := 'CB_INSERTSTRING';

$014B: Result := 'CB_RESETCONTENT';

$014C: Result := 'CB_FINDSTRING';

$014D: Result := 'CB_SELECTSTRING';

$014E: Result := 'CB_SETCURSEL';

$014F: Result := 'CB_SHOWDROPDOWN';

$0150: Result := 'CB_GETITEMDATA';

$0151: Result := 'CB_SETITEMDATA';

$0152: Result := 'CB_GETDROPPEDCONTROLRECT';

$0153: Result := 'CB_SETITEMHEIGHT';

$0154: Result := 'CB_GETITEMHEIGHT';

$0155: Result := 'CB_SETEXTENDEDUI';

$0156: Result := 'CB_GETEXTENDEDUI';

$0157: Result := 'CB_GETDROPPEDSTATE';

$0158: Result := 'CB_FINDSTRINGEXACT';

$0159: Result := 'CB_SETLOCALE';

$015A: Result := 'CB_GETLOCALE';

$015B: Result := 'CB_GETTOPINDEX';

$015C: Result := 'CB_SETTOPINDEX';

$015D: Result := 'CB_GETHORIZONTALEXTENT';

$015E: Result := 'CB_SETHORIZONTALEXTENT';

$015F: Result := 'CB_GETDROPPEDWIDTH';

$0160: Result := 'CB_SETDROPPEDWIDTH';

$0161: Result := 'CB_INITSTORAGE';

$0163: Result := 'CB_MULTIPLEADDSTRING';

$0164: Result := 'CB_GETCOMBOBOXINFO';

$0200: Result := 'WM_MOUSEFIRST or WM_MOUSEMOVE';

$0201: Result := 'WM_LBUTTONDOWN';

$0202: Result := 'WM_LBUTTONUP';

$0203: Result := 'WM_LBUTTONDBLCLK';

$0204: Result := 'WM_RBUTTONDOWN';

$0205: Result := 'WM_RBUTTONUP';

$0206: Result := 'WM_RBUTTONDBLCLK';

$0207: Result := 'WM_MBUTTONDOWN';

$0208: Result := 'WM_MBUTTONUP';

$0209: Result := 'WM_MBUTTONDBLCLK';

$020A: Result := 'WM_MOUSEWHEEL or WM_MOUSELAST';

$0210: Result := 'WM_PARENTNOTIFY';

$0211: Result := 'WM_ENTERMENULOOP';

$0212: Result := 'WM_EXITMENULOOP';

$0213: Result := 'WM_NEXTMENU';

$0214: Result := 'WM_SIZING';

$0215: Result := 'WM_CAPTURECHANGED';

$0216: Result := 'WM_MOVING';

$0218: Result := 'WM_POWERBROADCAST';

$0219: Result := 'WM_DEVICECHANGE';

$0220: Result := 'WM_MDICREATE';

$0221: Result := 'WM_MDIDESTROY';

$0222: Result := 'WM_MDIACTIVATE';

$0223: Result := 'WM_MDIRESTORE';

$0224: Result := 'WM_MDINEXT';

$0225: Result := 'WM_MDIMAXIMIZE';

$0226: Result := 'WM_MDITILE';

$0227: Result := 'WM_MDICASCADE';

$0228: Result := 'WM_MDIICONARRANGE';

$0229: Result := 'WM_MDIGETACTIVE';

$0230: Result := 'WM_MDISETMENU';

$0231: Result := 'WM_ENTERSIZEMOVE';

$0232: Result := 'WM_EXITSIZEMOVE';

$0233: Result := 'WM_DROPFILES';

$0234: Result := 'WM_MDIREFRESHMENU';

$0281: Result := 'WM_IME_SETCONTEXT';

$0282: Result := 'WM_IME_NOTIFY';

$0283: Result := 'WM_IME_CONTROL';

$0284: Result := 'WM_IME_COMPOSITIONFULL';

$0285: Result := 'WM_IME_SELECT';

$0286: Result := 'WM_IME_CHAR';

$0288: Result := 'WM_IME_REQUEST';

$0290: Result := 'WM_IME_KEYDOWN';

$0291: Result := 'WM_IME_KEYUP';

$02A1: Result := 'WM_MOUSEHOVER';

$02A2: Result := 'WM_NCMOUSELEAVE';

$02A3: Result := 'WM_MOUSELEAVE';

$0300: Result := 'WM_CUT';

$0301: Result := 'WM_COPY';

$0302: Result := 'WM_PASTE';

$0303: Result := 'WM_CLEAR';

$0304: Result := 'WM_UNDO';

$0305: Result := 'WM_RENDERFORMAT';

$0306: Result := 'WM_RENDERALLFORMATS';

$0307: Result := 'WM_DESTROYCLIPBOARD';

$0308: Result := 'WM_DRAWCLIPBOARD';

$0309: Result := 'WM_PAINTCLIPBOARD';

$030A: Result := 'WM_VSCROLLCLIPBOARD';

$030B: Result := 'WM_SIZECLIPBOARD';

$030C: Result := 'WM_ASKCBFORMATNAME';

$030D: Result := 'WM_CHANGECBCHAIN';

$030E: Result := 'WM_HSCROLLCLIPBOARD';

$030F: Result := 'WM_QUERYNEWPALETTE';

$0310: Result := 'WM_PALETTEISCHANGING';

$0311: Result := 'WM_PALETTECHANGED';

$0312: Result := 'WM_HOTKEY';

$0317: Result := 'WM_PRINT';

$0318: Result := 'WM_PRINTCLIENT';

$031F: Result := 'WM_DWMNCRENDERINGCHANGED';

$0358: Result := 'WM_HANDHELDFIRST';

$035F: Result := 'WM_HANDHELDLAST';

$0380: Result := 'WM_PENWINFIRST';

$038F: Result := 'WM_PENWINLAST';

$0390: Result := 'WM_COALESCE_FIRST';

$039F: Result := 'WM_COALESCE_LAST';

$03E0: Result := 'WM_DDE_FIRST or WM_DDE_INITIATE';

$03E1: Result := 'WM_DDE_TERMINATE';

$03E2: Result := 'WM_DDE_ADVISE';

$03E3: Result := 'WM_DDE_UNADVISE';

$03E4: Result := 'WM_DDE_ACK';

$03E5: Result := 'WM_DDE_DATA';

$03E6: Result := 'WM_DDE_REQUEST';

$03E7: Result := 'WM_DDE_POKE';

$03E8: Result := 'WM_DDE_EXECUTE or WM_DDE_LAST';

$0400: Result := 'WM_USER';

// progress bar

$0401: Result := 'PBM_SETRANGE';

$0402: Result := 'PBM_SETPOS';

$0403: Result := 'PBM_DELTAPOS';

$0404: Result := 'PBM_SETSTEP';

$0405: Result := 'PBM_STEPIT';

$0406: Result := 'PBM_SETRANGE32';

$0407: Result := 'PBM_GETRANGE';

$0408: Result := 'PBM_GETPOS';

$0409: Result := 'PBM_SETBARCOLOR';

$040A: Result := 'PBM_SETMARQUEE';

$040D: Result := 'PBM_GETSTEP';

$040E: Result := 'PBM_GETBKCOLOR';

$040F: Result := 'PBM_GETBARCOLOR';

$0410: Result := 'PBM_SETSTATE';

$0411: Result := 'PBM_GETSTATE';

// misc

$0469: Result := 'UDM_SETBUDDY';

$046A: Result := 'UDM_GETBUDDY';

$102C: Result := 'LVM_GETITEMSTATE';

$8000: Result := 'WM_APP';

else

Result := 'Unknown(' + IntToStr(WM_Message) + ')';

end; {Case}

end;