RichEdit Message Interface
There are many RichEdit messages. In addition to the system edit control messages defined in winuser.h, there are many new messages defined in richedit.h. All edit messages handled by RichEdit (specifically by ITextServices::TxSendMessage()) are listed below. System edit and RichEdit 1.0 messages are defined in the system SDK. RichEdit 2.0 and 3.0 messages aren’t documented in my copy of the SDK, but should be documented on http://richedit sometime soon, and in the SDK sometime later. Note that a number of RichEdit 1.0 messages have been generalized in later versions. E.g., EM_STREAMIN/OUT take an optional codepage value (which can be 1200, i.e., Unicode, or CP_UTF8, i.e., UTF-8). RichEdit only understands enough about IME messages to know to invoke the IME input module (see Input Module). Hence not all IME messages are listed below.
System edit control messages not handled by RichEdit
EM_GETHANDLE EM_SETHANDLE
EM_FMTLINES EM_SETTABSTOPS
WM_GETFONT
System edit control messages handled by RichEdit
EM_GETFIRSTVISIBLELINE EM_GETLINE
EM_GETLINECOUNT EM_GETMODIFY
EM_GETSEL EM_GETTHUMB
EM_GETWORDBREAKPROC EM_LIMITTEXT
EM_LINEFROMCHAR EM_LINEINDEX
EM_LINELENGTH EM_LINESCROLL
EM_REPLACESEL EM_SCROLL
EM_SETMODIFY EM_SETSEL
EM_SETTARGETDEVICE EM_SETWORDBREAKPROC
EM_UNDO
WM_CHAR WM_CLEAR
WM_CONTEXTMENU WM_COPY
WM_CUT WM_DESTROYCLIPBOARD
WM_DROPFILES WM_ERASEBKGND
WM_GETTEXT WM_GETTEXTLENGTH
WM_HSCROLL WM_IME_CHAR
WM_INPUTLANGCHANGE WM_INPUTLANGCHANGEREQUEST
WM_KEYDOWN WM_KEYUP
WM_KILLFOCUS WM_LBUTTONDBLCLK
WM_LBUTTONDOWN WM_LBUTTONUP
WM_MBUTTONDBLCLK WM_MBUTTONDOWN
WM_MBUTTONUP WM_MOUSEACTIVATE
WM_MOUSEMOVE WM_MOUSEWHEEL
WM_NCMBUTTONDOWN WM_PASTE
WM_RBUTTONDBLCLK WM_RBUTTONDOWN
WM_RBUTTONUP WM_RENDERALLFORMATS
WM_RENDERFORMAT WM_SETFOCUS
WM_SETFONT WM_SETTEXT
WM_SETTINGCHANGE WM_SIZE
WM_SYSCHAR WM_SYSCOLORCHANGE
WM_SYSKEYDOWN WM_TIMER
WM_UNDO WM_VSCROLL
RichEdit 1.0 messages
EM_CANPASTE EM_CHARFROMPOS
EM_DISPLAYBAND EM_EXGETSEL
EM_EXLIMITTEXT EM_EXLINEFROMCHAR
EM_EXSETSEL EM_FINDTEXT
EM_FINDTEXTEX EM_FINDWORDBREAK
EM_FORMATRANGE EM_GETEVENTMASK
EM_GETCHARFORMAT EM_GETLIMITTEXT
EM_GETOLEINTERFACE EM_GETOPTIONS
EM_GETPARAFORMAT EM_GETSELTEXT
EM_GETTEXTRANGE EM_GETWORDBREAKPROCEX
EM_HIDESELECTION EM_PASTESPECIAL
EM_POSFROMCHAR EM_REQUESTRESIZE
EM_SCROLLCARET EM_SELECTIONTYPE
EM_SETBKGNDCOLOR EM_SETCHARFORMAT
EM_SETEVENTMASK EM_SETOLECALLBACK
EM_SETOPTIONS EM_SETPARAFORMAT
EM_SETTARGETDEVICE EM_SETWORDBREAKPROCEX
EM_STREAMIN EM_STREAMOUT
RichEdit 2.0 messages
EM_SETUNDOLIMIT EM_REDO
EM_CANREDO EM_GETUNDONAME
EM_GETREDONAME EM_STOPGROUPTYPING
EM_SETTEXTMODE EM_GETTEXTMODE
EM_AUTOURLDETECT EM_GETAUTOURLDETECT
EM_SETPALETTE EM_GETTEXTEX
EM_GETTEXTLENGTHEX EM_SHOWSCROLLBAR
EM_FINDTEXTW EM_FINDTEXTEXW
Far East specific messages (some are RE 1.0)
EM_GETPUNCTUATION EM_SETPUNCTUATION
EM_GETWORDWRAPMODE EM_SETWORDWRAPMODE
EM_GETIMECOLOR EM_SETIMECOLOR
EM_GETIMEOPTIONS EM_SETIMEOPTIONS
EM_GETLANGOPTIONS EM_SETLANGOPTIONS
EM_CONVPOSITION EM_GETIMECOMPMODE
RichEdit 3.0 messages
FE messages
EM_GETIMEMODEBIAS EM_SETIMEMODEBIAS
EM_RECONVERSION
BiDi specific messages
EM_GETBIDIOPTIONS EM_SETBIDIOPTIONS
Extended edit style specific messages
EM_GETEDITSTYLE EM_SETEDITSTYLE
Outline view message
EM_OUTLINE
Message for getting and restoring scroll pos
EM_GETSCROLLPOS EM_SETSCROLLPOS
Zoom and increment/decrement fontsize
EM_GETZOOM EM_SETZOOM
EM_SETFONTSIZE
LineServices messages
EM_GETTYPOGRAPHYOPTIONS EM_SETTYPOGRAPHYOPTIONS
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