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.\"***************************************************************************
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.\" Copyright (c) 1998-2004,2005 Free Software Foundation, Inc. *
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.\" Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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\fBcuu1\fR, \fBcuu\fR, \fBvpa\fR are disabled; and the \fBhome\fR string is
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set to the value of \fBcr\fR.
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The \fBnofilter\fP routine cancels the effect of a preceding \fBfilter\fP
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That allows the caller to initialize a screen on a different device,
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using a different value of \fB$TERM\fP.
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The limitation arises because the \fBfilter\fP routine modifies the
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in-memory copy of the terminal information.
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The \fBuse_env\fR routine, if used, is called before \fBinitscr\fR or
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\fBnewterm\fR are called. When called with \fBFALSE\fR as an
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argument, the values of \fBlines\fR and \fBcolumns\fR specified in the
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erroneously fails to describe the disabling of \fBcuu\fR).
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The strings returned by \fBunctrl\fR in this implementation are determined
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at compile time, showing C1 controls from the upper-128 codes with a `~'
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prefix rather than `^'.
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Other implementations typically show both sets of control characters with `^',
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and may strip the parameter to 7 bits.
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showing C1 controls from the upper-128 codes with a `~' prefix rather than `^'.
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Other implementations have different conventions.
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For example, they may show both sets of control characters with `^',
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and strip the parameter to 7 bits.
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Or they may ignore C1 controls and treat all of the upper-1280 codes as
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This implementation uses 8 bits but does not modify the string to reflect
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The \fBuse_legacy_coding\fP function allows the caller to
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change the output of \fBunctrl\fP.
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The \fBkeyname\fP function may return the names of user-defined
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string capabilities which are defined in the terminfo entry via the \fB-x\fP
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option of \fBtic\fP.
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This implementation automatically assigns at run-time keycodes to
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user-defined strings which begin with "k".
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The keycodes start at KEY_MAX, but are not guaranteed to be
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the same value for different runs because user-defined codes are
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merged from all terminal descriptions which have been loaded.
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The \fBnofilter\fP routine is specific to ncurses.
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It was not supported on Version 7, BSD or System V implementations.
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It is recommended that any code depending on ncurses extensions
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be conditioned using NCURSES_VERSION.
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\fBuse_legacy_coding\fR(3),
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\fBcurses\fR(3X),
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\fBcurs_initscr\fR(3X),
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\fBcurs_kernel\fR(3X),
added
removed
man/curs_util.3x
