如果可以,肯定是通过SendMessage实现,可是下面的参数中并没有找到。所以应该实现不了
EM_CANUNDO
EM_CHARFROMPOS
EM_EMPTYUNDOBUFFER
EM_FMTLINES
EM_GETCUEBANNER
EM_GETFIRSTVISIBLELINE
EM_GETHANDLE
EM_GETIMESTATUS
EM_GETLIMITTEXT
EM_GETLINE
EM_GETLINECOUNT
EM_GETMARGINS
EM_GETMODIFY
EM_GETPASSWORDCHAR
EM_GETRECT
EM_GETSEL
EM_GETTHUMB
EM_GETWORDBREAKPROC
EM_HIDEBALLOONTIP
EM_LIMITTEXT
EM_LINEFROMCHAR
EM_LINEINDEX
EM_LINELENGTH
EM_LINESCROLL
EM_POSFROMCHAR
EM_REPLACESEL
EM_SCROLL
EM_SCROLLCARET
EM_SETCUEBANNER
EM_SETHANDLE
EM_SETIMESTATUS
EM_SETLIMITTEXT
EM_SETMARGINS
EM_SETMODIFY
EM_SETPASSWORDCHAR
EM_SETREADONLY
EM_SETRECT
EM_SETRECTNP
EM_SETSEL
EM_SETTABSTOPS
EM_SETWORDBREAKPROC
EM_SHOWBALLOONTIP
EM_UNDO
EN_ALIGN_LTR_EC
EN_ALIGN_RTL_EC
EN_CHANGE
EN_ERRSPACE
EN_HSCROLL
EN_KILLFOCUS
EN_MAXTEXT
EN_SETFOCUS
EN_UPDATE
EN_VSCROLL
WM_COMMAND
WM_COPY
WM_CTLCOLOREDIT
WM_CTLCOLORSTATIC
WM_CUT
WM_PASTE
WM_UNDO
/^&&^\
--
EM_CANUNDO
EM_CHARFROMPOS
EM_EMPTYUNDOBUFFER
EM_FMTLINES
EM_GETCUEBANNER
EM_GETFIRSTVISIBLELINE
EM_GETHANDLE
EM_GETIMESTATUS
EM_GETLIMITTEXT
EM_GETLINE
EM_GETLINECOUNT
EM_GETMARGINS
EM_GETMODIFY
EM_GETPASSWORDCHAR
EM_GETRECT
EM_GETSEL
EM_GETTHUMB
EM_GETWORDBREAKPROC
EM_HIDEBALLOONTIP
EM_LIMITTEXT
EM_LINEFROMCHAR
EM_LINEINDEX
EM_LINELENGTH
EM_LINESCROLL
EM_POSFROMCHAR
EM_REPLACESEL
EM_SCROLL
EM_SCROLLCARET
EM_SETCUEBANNER
EM_SETHANDLE
EM_SETIMESTATUS
EM_SETLIMITTEXT
EM_SETMARGINS
EM_SETMODIFY
EM_SETPASSWORDCHAR
EM_SETREADONLY
EM_SETRECT
EM_SETRECTNP
EM_SETSEL
EM_SETTABSTOPS
EM_SETWORDBREAKPROC
EM_SHOWBALLOONTIP
EM_UNDO
EN_ALIGN_LTR_EC
EN_ALIGN_RTL_EC
EN_CHANGE
EN_ERRSPACE
EN_HSCROLL
EN_KILLFOCUS
EN_MAXTEXT
EN_SETFOCUS
EN_UPDATE
EN_VSCROLL
WM_COMMAND
WM_COPY
WM_CTLCOLOREDIT
WM_CTLCOLORSTATIC
WM_CUT
WM_PASTE
WM_UNDO
/^&&^\
--
如果真的要系统提供这个功能
等若干年后
MicroSoft出新一代操作系统再说吧!