{ "mode": "perldoc", "parameter": "Curses", "section": "", "url": "https://www.chedong.com/phpMan.php/perldoc/Curses/json", "generated": "2026-10-04T16:25:30Z", "synopsis": "use Curses;\ninitscr;\n...\nendwin;", "sections": { "NAME": { "content": "Curses - terminal screen handling and optimization\n", "subsections": [] }, "SYNOPSIS": { "content": "use Curses;\n\ninitscr;\n...\nendwin;\n", "subsections": [] }, "DESCRIPTION": { "content": "\"Curses\" is the interface between Perl and your system's curses(3) library. For descriptions on\nthe usage of a given function, variable, or constant, consult your system's documentation, as\nsuch information invariably varies (:-) between different curses(3) libraries and operating\nsystems. This document describes the interface itself, and assumes that you already know how\nyour system's curses(3) library works.\n", "subsections": [ { "name": "Unified Functions", "content": "Many curses(3) functions have variants starting with the prefixes *w-*, *mv-*, and/or *wmv-*.\nThese variants differ only in the explicit addition of a window, or by the addition of two\ncoordinates that are used to move the cursor first. For example, addch() has three other\nvariants: waddch(), mvaddch(), and mvwaddch(). The variants aren't very interesting; in fact, we\ncould roll all of the variants into original function by allowing a variable number of arguments\nand analyzing the argument list for which variant the user wanted to call.\n\nUnfortunately, curses(3) predates varargs(3), so in C we were stuck with all the variants.\nHowever, \"Curses\" is a Perl interface, so we are free to \"unify\" these variants into one\nfunction. The section \"Available Functions\" below lists all curses(3) functions \"Curses\" makes\navailable as Perl equivalents, along with a column listing if it is *unified*. If so, it takes a\nvarying number of arguments as follows:\n\n\"function( [win], [y, x], args );\"\n\n*win* is an optional window argument, defaulting to \"stdscr\" if not specified.\n\n*y, x* is an optional coordinate pair used to move the cursor, defaulting to no move if not\nspecified.\n\n*args* are the required arguments of the function. These are the arguments you would specify\nif you were just calling the base function and not any of the variants.\n\nThis makes the variants obsolete, since their functionality has been merged into a single\nfunction, so \"Curses\" does not define them by default. You can still get them if you want, by\nsetting the variable $Curses::OldCurses to a non-zero value before using the \"Curses\" package.\nSee \"Perl 4.X \"cursperl\" Compatibility\" for an example of this.\n" }, { "name": "Wide-Character-Aware Functions", "content": "The following are the preferred functions for working with strings, though they don't follow the\nnormal unified function naming convention (based on the names in the Curses library) described\nabove. Despite the naming, each corresponds to a Curses library function. For example, a\n\"getchar\" call performs a Curses library function in the \"getch\" family.\n\nIn addition to these functions, The \"Curses\" module contains corresponding functions with the\nconventional naming (e.g. \"getch\"); the duplication is for historical reasons. The preferred\nfunctions were new in Curses 1.29 (April 2014). They use the wide character functions in the\nCurses library if available (falling back to using the traditional non-wide-character versions).\nThey also have a more Perl-like interface, taking care of some gory details under the hood about\nwhich a Perl programmer shouldn't have to worry.\n\nThe reason for two sets of string-handling functions is historical. The original Curses Perl\nmodule predates Curses libraries that understand multiple byte character encodings. Moreover,\nthe module was designed to have a Perl interface that closely resembles the C interface\nsyntactically and directly passes the internal byte representation of Perl strings to C code.\nThis was probably fine before Perl got Unicode function, but today, Perl stores strings\ninternally in either Latin-1 or Unicode UTF-8 and the original module was not sensitive to which\nencoding was used.\n\nWhile most of the problems could be worked around in Perl code using the traditional interface,\nit's hard to get right and you need a wide-character-aware curses library (e.g. ncursesw) anyway\nto make it work properly. Because existing consumers of the Curses module may be relying on the\ntraditional behavior, Curses module designers couldn't simply modify the existing functions to\nunderstand wide characters and convert from and to Perl strings.\n\nNone of these functions exist if Perl is older than 5.6.\n\n\"getchar\"\nThis calls wgetwch(). It returns a character -- more precisely, a one-character (not\nnecessarily one-byte!) string holding the character -- for a normal key and a two-element list\n\"(undef, key-number)\" for a function key. It returns \"undef\" on error.\n\nIf you don't expect function keys (i.e. with \"keypad(0))\", you can simply do\n\nmy $ch = getchar;\ndie \"getchar failed\" unless defined $ch;\n\nIf you do expect function keys (i.e. with keypad(1)), you can still assign the result to a\nscalar variable as above. Because of of the way the comma operator works, that variable will\nreceive either \"undef\" or the string or the number, and you can decode it yourself.\n\nmy $ch = getchar;\ndie \"getchar failed\" unless defined $ch;\nif (<$ch looks like a number >= 0x100>) {\n\n} else {\n\n}\n\nor do\n\nmy ($ch, $key) = getchar;\nif (defined $key) {\n\n} else if (defined $ch) {\n\n} else {\ndie \"getchar failed\";\n}\n\nIf wgetwch() is not available (i.e. The Curses library does not understand wide characters),\nthis calls wgetch(), but returns the values described above nonetheless. This can be a problem\nbecause with a multibyte character encoding like UTF-8, you will receive two one-character\nstrings for a two-byte-character (e.g. \"����\" and \"▽\" for \"∽\"). If you append these\ncharacters to a Perl string, that string may internally contain a valid UTF-8 encoding of a\ncharacter, but Perl will not interpret it that way. Perl may even try to convert what it\nbelieves to be two characters to UTF-8, giving you four bytes.\n\n\"getstring\"\nThis calls \"wgetnwstr\" and returns a string or \"undef\". It cannot return a function key value;\nthe Curses library will itself interpret KEYLEFT and KEYBACKSPACE.\n\nIf wgettwstr() is unavailable, this calls wgetstr().\n\nIn both cases, the function allocates a buffer of fixed size to hold the result of the Curses\nlibrary call.\n\nmy $s = getstring();\ndie \"getstring failed\" unless defined $s;\n\n\"addstring\"/\"insstring\"\nThis adds/inserts the Perl string passed as an argument to the Curses window using" }, { "name": "waddnwstr", "content": "success, false on failure.\n\naddstring(\"H∽ll‡, W‡rld\") || die \"addstring failed\";\n\n\"instring\"\nThis returns a Perl string (or \"undef\" on failure) holding the characters from the current\ncursor position up to the end of the line. It uses winnwstr() if available, and otherwise" }, { "name": "innstr", "content": "my $s = instring();\ndie \"instring failed\" unless defined $s;\n\n\"ungetchar\"\nThis pushes one character (passed as a one-character Perl string) back to the input queue. It\nuses ungetwch() or ungetch(). It returns a true value on success, false on failure. It cannot\npush back a function key; the Curses library provides no way to push back function keys, only\ncharacters.\n\nungetchar(\"X\") or die \"ungetchar failed\";\n\nThe \"Curses\" module provides no interface to the complex-character routines (waddwch()," }, { "name": "wadd_wchnstr", "content": "sensible way of converting from Perl to a C \"cchart\" or back.\n" }, { "name": "Objects", "content": "Objects work. Example:\n\n$win = new Curses;\n$win->addstr(10, 10, 'foo');\n$win->refresh;\n...\n\nAny function that has been marked as *unified* (see \"Available Functions\" below and \"Unified\nFunctions\" above) can be called as a method for a Curses object.\n\nDo not use initscr() if using objects, as the first call to get a \"new Curses\" will do it for\nyou.\n" }, { "name": "Security Concerns", "content": "It has always been the case with the curses functions, but please note that the following\nfunctions:\n\ngetstr() (and optional wgetstr(), mvgetstr(), and mvwgetstr())\ninchstr() (and optional winchstr(), mvinchstr(), and mvwinchstr())\ninstr() (and optional winstr(), mvinstr(), and mvwinstr())\n\nare subject to buffer overflow attack. This is because you pass in the buffer to be filled in,\nwhich has to be of finite length, but there is no way to stop a bad guy from typing.\n\nIn order to avoid this problem, use the alternate functions:\n\ngetnstr()\ninchnstr()\ninnstr()\n\nwhich take an extra \"size of buffer\" argument or the wide-character-aware getstring() and" }, { "name": "instring", "content": "" } ] }, "COMPATIBILITY": { "content": "Perl 4.X \"cursperl\" Compatibility\n\"Curses\" was written to take advantage of features of Perl 5 and later. The author thought it\nwas better to provide an improved curses programming environment than to be 100% compatible.\nHowever, many old \"curseperl\" applications will probably still work by starting the script with:\n\nBEGIN { $Curses::OldCurses = 1; }\nuse Curses;\n\nAny old application that still does not work should print an understandable error message\nexplaining the problem.\n\nSome functions and variables are not available through \"Curses\", even with the \"BEGIN\" line.\nThey are listed under \"Curses items not available through Perl Curses\".\n\nThe variables $stdscr and $curscr are also available as functions \"stdscr\" and \"curscr\". This is\nbecause of a Perl bug. See the LIMITATIONS section for details.\n\nIncompatibilities with previous versions of \"Curses\"\nIn previous versions of this software, some Perl functions took a different set of parameters\nthan their C counterparts. This is not true in the current version. You should now use", "subsections": [ { "name": "getstr", "content": "" } ] }, "DIAGNOSTICS": { "content": "* Curses function '%s' called with too %s arguments at ...\n\nYou have called a \"Curses\" function with a wrong number of arguments.\n\n* argument %d to Curses function '%s' is not a Curses %s at ...\n\n* argument is not a Curses %s at ...\n\nThe argument you gave to the function wasn't of a valid type for the place you used it.\n\nThis probably means that you didn't give the right arguments to a *unified* function. See\nthe DESCRIPTION section on \"Unified Functions\" for more information.\n\n* Curses function '%s' is not defined in your Curses library at ...\n\nYour code has a call to a Perl \"Curses\" function that your system's Curses library doesn't\nprovide.\n\n* Curses variable '%s' is not defined in your Curses library at ...\n\nYour code has a Perl \"Curses\" variable that your system's Curses library doesn't provide.\n\n* Curses constant '%s' is not defined in your Curses library at ...\n\nYour code references the specified \"Curses\" constant, and your system's Curses library\ndoesn't provide it.\n\n* Curses::Vars::FETCH called with bad index at ...\n\n* Curses::Vars::STORE called with bad index at ...\n\nYou've been playing with the \"tie\" interface to the \"Curses\" variables. Don't do that. :-)\n\n* Anything else\n\nCheck out the perldiag man page to see if the error is in there.\n", "subsections": [] }, "LIMITATIONS": { "content": "If you use the variables $stdscr and $curscr instead of their functional counterparts (\"stdscr\"\nand \"curscr\"), you might run into a bug in Perl where the \"magic\" isn't called early enough.\nThis is manifested by the \"Curses\" package telling you $stdscr isn't a window. One workaround is\nto put a line like \"$stdscr = $stdscr\" near the front of your program.\n", "subsections": [] }, "AUTHOR": { "content": "William Setzer \n", "subsections": [] }, "SYNOPSIS OF PERL CURSES AVAILABILITY": { "content": "", "subsections": [ { "name": "Available Functions", "content": "Available Function Unified? Available via $OldCurses[*]\n------------------ -------- ------------------------\naddch Yes waddch mvaddch mvwaddch\nechochar Yes wechochar\naddchstr Yes waddchstr mvaddchstr mvwaddchstr\naddchnstr Yes waddchnstr mvaddchnstr mvwaddchnstr\naddstr Yes waddstr mvaddstr mvwaddstr\naddnstr Yes waddnstr mvaddnstr mvwaddnstr\nattroff Yes wattroff\nattron Yes wattron\nattrset Yes wattrset\nstandend Yes wstandend\nstandout Yes wstandout\nattrget Yes wattrget\nattroff Yes wattroff\nattron Yes wattron\nattrset Yes wattrset\nchgat Yes wchgat mvchgat mvwchgat\nCOLORPAIR No\nPAIRNUMBER No\nbeep No\nflash No\nbkgd Yes wbkgd\nbkgdset Yes wbkgdset\ngetbkgd Yes\nborder Yes wborder\nbox Yes\nhline Yes whline mvhline mvwhline\nvline Yes wvline mvvline mvwvline\nerase Yes werase\nclear Yes wclear\nclrtobot Yes wclrtobot\nclrtoeol Yes wclrtoeol\nstartcolor No\ninitpair No\ninitcolor No\nhascolors No\ncanchangecolor No\ncolorcontent No\npaircontent No\ndelch Yes wdelch mvdelch mvwdelch\ndeleteln Yes wdeleteln\ninsdelln Yes winsdelln\ninsertln Yes winsertln\ngetch Yes wgetch mvgetch mvwgetch\nungetch No\nhaskey No\nKEYF No\ngetstr Yes wgetstr mvgetstr mvwgetstr\ngetnstr Yes wgetnstr mvgetnstr mvwgetnstr\ngetyx Yes\ngetparyx Yes\ngetbegyx Yes\ngetmaxyx Yes\ninch Yes winch mvinch mvwinch\ninchstr Yes winchstr mvinchstr mvwinchstr\ninchnstr Yes winchnstr mvinchnstr mvwinchnstr\ninitscr No\nendwin No\nisendwin No\nnewterm No\nsetterm No\ndelscreen No\ncbreak No\nnocbreak No\necho No\nnoecho No\nhalfdelay No\nintrflush Yes\nkeypad Yes\nmeta Yes\nnodelay Yes\nnotimeout Yes\nraw No\nnoraw No\nqiflush No\nnoqiflush No\ntimeout Yes wtimeout\ntypeahead No\ninsch Yes winsch mvinsch mvwinsch\ninsstr Yes winsstr mvinsstr mvwinsstr\ninsnstr Yes winsnstr mvinsnstr mvwinsnstr\ninstr Yes winstr mvinstr mvwinstr\ninnstr Yes winnstr mvinnstr mvwinnstr\ndefprogmode No\ndefshellmode No\nresetprogmode No\nresetshellmode No\nresetty No\nsavetty No\ngetsyx No\nsetsyx No\ncursset No\nnapms No\nmove Yes wmove\nclearok Yes\nidlok Yes\nidcok Yes\nimmedok Yes\nleaveok Yes\nsetscrreg Yes wsetscrreg\nscrollok Yes\nnl No\nnonl No\noverlay No\noverwrite No\ncopywin No\nnewpad No\nsubpad No\nprefresh No\npnoutrefresh No\npechochar No\nrefresh Yes wrefresh\nnoutrefresh Yes wnoutrefresh\ndoupdate No\nredrawwin Yes\nredrawln Yes wredrawln\nscrdump No\nscrrestore No\nscrinit No\nscrset No\nscroll Yes\nscrl Yes wscrl\nslkinit No\nslkset No\nslkrefresh No\nslknoutrefresh No\nslklabel No\nslkclear No\nslkrestore No\nslktouch No\nslkattron No\nslkattrset No\nslkattr No\nslkattroff No\nslkcolor No\nbaudrate No\nerasechar No\nhasic No\nhasil No\nkillchar No\nlongname No\ntermattrs No\ntermname No\ntouchwin Yes\ntouchline Yes\nuntouchwin Yes\ntouchln Yes wtouchln\nislinetouched Yes\niswintouched Yes\nunctrl No\nkeyname No\nfilter No\nuseenv No\nputwin No\ngetwin No\ndelayoutput No\nflushinp No\nnewwin No\ndelwin Yes\nmvwin Yes\nsubwin Yes\nderwin Yes\nmvderwin Yes\ndupwin Yes\nsyncup Yes wsyncup\nsyncok Yes\ncursyncup Yes wcursyncup\nsyncdown Yes wsyncdown\ngetmouse No\nungetmouse No\nmousemask No\nenclose Yes wenclose\nmousetrafo Yes wmousetrafo\nmouseinterval No\nBUTTONRELEASE No\nBUTTONPRESS No\nBUTTONCLICK No\nBUTTONDOUBLECLICK No\nBUTTONTRIPLECLICK No\nBUTTONRESERVEDEVENT No\nusedefaultcolors No\nassumedefaultcolors No\ndefinekey No\nkeybound No\nkeyok No\nresizeterm No\nresize Yes wresize\ngetmaxy Yes\ngetmaxx Yes\nflusok Yes\ngetcap No\ntouchoverlap No\nnewpanel No\nbottompanel No\ntoppanel No\nshowpanel No\nupdatepanels No\nhidepanel No\npanelwindow No\nreplacepanel No\nmovepanel No\npanelhidden No\npanelabove No\npanelbelow No\nsetpaneluserptr No\npaneluserptr No\ndelpanel No\nsetmenufore No\nmenufore No\nsetmenuback No\nmenuback No\nsetmenugrey No\nmenugrey No\nsetmenupad No\nmenupad No\nposmenucursor No\nmenudriver No\nsetmenuformat No\nmenuformat No\nsetmenuitems No\nmenuitems No\nitemcount No\nsetmenumark No\nmenumark No\nnewmenu No\nfreemenu No\nmenuopts No\nsetmenuopts No\nmenuoptson No\nmenuoptsoff No\nsetmenupattern No\nmenupattern No\npostmenu No\nunpostmenu No\nsetmenuuserptr No\nmenuuserptr No\nsetmenuwin No\nmenuwin No\nsetmenusub No\nmenusub No\nscalemenu No\nsetcurrentitem No\ncurrentitem No\nsettoprow No\ntoprow No\nitemindex No\nitemname No\nitemdescription No\nnewitem No\nfreeitem No\nsetitemopts No\nitemoptson No\nitemoptsoff No\nitemopts No\nitemuserptr No\nsetitemuserptr No\nsetitemvalue No\nitemvalue No\nitemvisible No\nmenurequestname No\nmenurequestbyname No\nsetmenuspacing No\nmenuspacing No\nposformcursor No\ndataahead No\ndatabehind No\nformdriver No\nsetformfields No\nformfields No\nfieldcount No\nmovefield No\nnewform No\nfreeform No\nsetnewpage No\nnewpage No\nsetformopts No\nformoptson No\nformoptsoff No\nformopts No\nsetcurrentfield No\ncurrentfield No\nsetformpage No\nformpage No\nfieldindex No\npostform No\nunpostform No\nsetformuserptr No\nformuserptr No\nsetformwin No\nformwin No\nsetformsub No\nformsub No\nscaleform No\nsetfieldfore No\nfieldfore No\nsetfieldback No\nfieldback No\nsetfieldpad No\nfieldpad No\nsetfieldbuffer No\nfieldbuffer No\nsetfieldstatus No\nfieldstatus No\nsetmaxfield No\nfieldinfo No\ndynamicfieldinfo No\nsetfieldjust No\nfieldjust No\nnewfield No\ndupfield No\nlinkfield No\nfreefield No\nsetfieldopts No\nfieldoptson No\nfieldoptsoff No\nfieldopts No\nsetfielduserptr No\nfielduserptr No\nfieldarg No\nformrequestname No\nformrequestbyname No\n\n[*] To use any functions in this column, the program must set the variable $Curses::OldCurses\nvariable to a non-zero value before using the \"Curses\" package. See \"Perl 4.X cursperl\nCompatibility\" for an example of this.\n" }, { "name": "Available Wide-Character-Aware Functions", "content": "Function Uses wide-character call Reverts to legacy call\n-------- ------------------------ ----------------------\ngetchar wgetwch wgetch\ngetstring wgetnwstr wgetnstr\nungetchar ungetwch ungetch\ninstring winnwtr winnstr\naddstring waddnwstr waddnstr\ninsstring winsnwstr winsnstr\n" }, { "name": "Available Variables", "content": "LINES COLS stdscr\ncurscr COLORS COLORPAIRS\n" }, { "name": "Available Constants", "content": "ERR OK ACSBLOCK\nACSBOARD ACSBTEE ACSBULLET\nACSCKBOARD ACSDARROW ACSDEGREE\nACSDIAMOND ACSHLINE ACSLANTERN\nACSLARROW ACSLLCORNER ACSLRCORNER\nACSLTEE ACSPLMINUS ACSPLUS\nACSRARROW ACSRTEE ACSS1\nACSS9 ACSTTEE ACSUARROW\nACSULCORNER ACSURCORNER ACSVLINE\nAALTCHARSET AATTRIBUTES ABLINK\nABOLD ACHARTEXT ACOLOR\nADIM AINVIS ANORMAL\nAPROTECT AREVERSE ASTANDOUT\nAUNDERLINE AITALIC\nCOLORBLACK COLORBLUE\nCOLORCYAN COLORGREEN COLORMAGENTA\nCOLORRED COLORWHITE COLORYELLOW\nKEYA1 KEYA3 KEYB2\nKEYBACKSPACE KEYBEG KEYBREAK\nKEYBTAB KEYC1 KEYC3\nKEYCANCEL KEYCATAB KEYCLEAR\nKEYCLOSE KEYCOMMAND KEYCOPY\nKEYCREATE KEYCTAB KEYDC\nKEYDL KEYDOWN KEYEIC\nKEYEND KEYENTER KEYEOL\nKEYEOS KEYEVENT KEYEXIT\nKEYF0\nKEYFIND KEYHELP KEYHOME\nKEYIC KEYIL KEYLEFT\nKEYLL KEYMARK KEYMAX\nKEYMESSAGE KEYMIN KEYMOVE\nKEYNEXT KEYNPAGE KEYOPEN\nKEYOPTIONS KEYPPAGE KEYPREVIOUS\nKEYPRINT KEYREDO KEYREFERENCE\nKEYREFRESH KEYREPLACE KEYRESET\nKEYRESIZE KEYRESTART KEYRESUME\nKEYRIGHT\nKEYSAVE KEYSBEG KEYSCANCEL\nKEYSCOMMAND KEYSCOPY KEYSCREATE\nKEYSDC KEYSDL KEYSELECT\nKEYSEND KEYSEOL KEYSEXIT\nKEYSF KEYSFIND KEYSHELP\nKEYSHOME KEYSIC KEYSLEFT\nKEYSMESSAGE KEYSMOVE KEYSNEXT\nKEYSOPTIONS KEYSPREVIOUS KEYSPRINT\nKEYSR KEYSREDO KEYSREPLACE\nKEYSRESET KEYSRIGHT KEYSRSUME\nKEYSSAVE KEYSSUSPEND KEYSTAB\nKEYSUNDO KEYSUSPEND KEYUNDO\nKEYUP KEYMOUSE BUTTON1RELEASED\nBUTTON1PRESSED BUTTON1CLICKED BUTTON1DOUBLECLICKED\nBUTTON1TRIPLECLICKED BUTTON1RESERVEDEVENT BUTTON2RELEASED\nBUTTON2PRESSED BUTTON2CLICKED BUTTON2DOUBLECLICKED\nBUTTON2TRIPLECLICKED BUTTON2RESERVEDEVENT BUTTON3RELEASED\nBUTTON3PRESSED BUTTON3CLICKED BUTTON3DOUBLECLICKED\nBUTTON3TRIPLECLICKED BUTTON3RESERVEDEVENT BUTTON4RELEASED\nBUTTON4PRESSED BUTTON4CLICKED BUTTON4DOUBLECLICKED\nBUTTON4TRIPLECLICKED BUTTON4RESERVEDEVENT BUTTONCTRL\nBUTTONSHIFT BUTTONALT ALLMOUSEEVENTS\nREPORTMOUSEPOSITION NCURSESMOUSEVERSION EOK\nESYSTEMERROR EBADARGUMENT EPOSTED\nECONNECTED EBADSTATE ENOROOM\nENOTPOSTED EUNKNOWNCOMMAND ENOMATCH\nENOTSELECTABLE ENOTCONNECTED EREQUESTDENIED\nEINVALIDFIELD ECURRENT REQLEFTITEM\nREQRIGHTITEM REQUPITEM REQDOWNITEM\nREQSCRULINE REQSCRDLINE REQSCRDPAGE\nREQSCRUPAGE REQFIRSTITEM REQLASTITEM\nREQNEXTITEM REQPREVITEM REQTOGGLEITEM\nREQCLEARPATTERN REQBACKPATTERN REQNEXTMATCH\nREQPREVMATCH MINMENUCOMMAND MAXMENUCOMMAND\nOONEVALUE OSHOWDESC OROWMAJOR\nOIGNORECASE OSHOWMATCH ONONCYCLIC\nOSELECTABLE REQNEXTPAGE REQPREVPAGE\nREQFIRSTPAGE REQLASTPAGE REQNEXTFIELD\nREQPREVFIELD REQFIRSTFIELD REQLASTFIELD\nREQSNEXTFIELD REQSPREVFIELD REQSFIRSTFIELD\nREQSLASTFIELD REQLEFTFIELD REQRIGHTFIELD\nREQUPFIELD REQDOWNFIELD REQNEXTCHAR\nREQPREVCHAR REQNEXTLINE REQPREVLINE\nREQNEXTWORD REQPREVWORD REQBEGFIELD\nREQENDFIELD REQBEGLINE REQENDLINE\nREQLEFTCHAR REQRIGHTCHAR REQUPCHAR\nREQDOWNCHAR REQNEWLINE REQINSCHAR\nREQINSLINE REQDELCHAR REQDELPREV\nREQDELLINE REQDELWORD REQCLREOL\nREQCLREOF REQCLRFIELD REQOVLMODE\nREQINSMODE REQSCRFLINE REQSCRBLINE\nREQSCRFPAGE REQSCRBPAGE REQSCRFHPAGE\nREQSCRBHPAGE REQSCRFCHAR REQSCRBCHAR\nREQSCRHFLINE REQSCRHBLINE REQSCRHFHALF\nREQSCRHBHALF REQVALIDATION REQNEXTCHOICE\nREQPREVCHOICE MINFORMCOMMAND MAXFORMCOMMAND\nNOJUSTIFICATION JUSTIFYLEFT JUSTIFYCENTER\nJUSTIFYRIGHT OVISIBLE OACTIVE\nOPUBLIC OEDIT OWRAP\nOBLANK OAUTOSKIP ONULLOK\nOPASSOK OSTATIC ONLOVERLOAD\nOBSOVERLOAD\n\nCurses functions not available through Perl \"Curses\"\ntstp putchar fullname scanw wscanw mvscanw mvwscanw ripoffline\nsetupterm setterm setcurterm delcurterm restartterm tparm tputs\nputp vidputs vidattr mvcur tigetflag tigetnum tigetstr tgetent\ntgetflag tgetnum tgetstr tgoto tputs\n\nCurses menu functions not available through Perl \"Curses\"\nsetiteminit iteminit setitemterm itemterm setmenuinit\nmenuinit setmenuterm menuterm\n\nCurses form functions not available through Perl \"Curses\"\nnewfieldtype freefieldtype setfieldtypearg\nsetfieldtypechoice linkfieldtype setforminit forminit\nsetformterm formterm setfieldinit fieldinit setfieldterm\nfieldterm setfieldtype fieldtype\n" } ] } }, "summary": "Curses - terminal screen handling and optimization", "flags": [], "examples": [], "see_also": [] }