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Diffstat (limited to 'ncurses-5.3/man/form_hook.3x')
| -rw-r--r-- | ncurses-5.3/man/form_hook.3x | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/ncurses-5.3/man/form_hook.3x b/ncurses-5.3/man/form_hook.3x new file mode 100644 index 0000000..8833a44 --- /dev/null +++ b/ncurses-5.3/man/form_hook.3x @@ -0,0 +1,100 @@ +'\" t +.\"*************************************************************************** +.\" Copyright (c) 1998 Free Software Foundation, Inc. * +.\" * +.\" Permission is hereby granted, free of charge, to any person obtaining a * +.\" copy of this software and associated documentation files (the * +.\" "Software"), to deal in the Software without restriction, including * +.\" without limitation the rights to use, copy, modify, merge, publish, * +.\" distribute, distribute with modifications, sublicense, and/or sell * +.\" copies of the Software, and to permit persons to whom the Software is * +.\" furnished to do so, subject to the following conditions: * +.\" * +.\" The above copyright notice and this permission notice shall be included * +.\" in all copies or substantial portions of the Software. * +.\" * +.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * +.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * +.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * +.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * +.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * +.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * +.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. * +.\" * +.\" Except as contained in this notice, the name(s) of the above copyright * +.\" holders shall not be used in advertising or otherwise to promote the * +.\" sale, use or other dealings in this Software without prior written * +.\" authorization. * +.\"*************************************************************************** +.\" +.\" $Id$ +.TH form_hook 3X "" +.SH NAME +\fBform_hook\fR - set hooks for automatic invocation by applications +.SH SYNOPSIS +\fB#include <form.h>\fR +.br +int set_field_init(FORM *form, void (*func)(FORM *)); +.br +void (*)(FORM *) field_init(const FORM *form); +.br +int set_field_term(FORM *form, void (*func)(FORM *)); +.br +void (*)(FORM *) field_term(const FORM *form); +.br +int set_form_init(FORM *form, void (*func)(FORM *)); +.br +void (*)(FORM *) form_init(const FORM *form); +.br +int set_form_term(FORM *form, void (*func)(FORM *)); +.br +void (*)(FORM *) form_term(const FORM *form); +.br +.SH DESCRIPTION +These functions make it possible to set hook functions to be called at various +points in the automatic processing of input event codes by \fBform_driver\fR. + +The function \fBset_field_init\fR sets a hook to be called at form-post time +and each time the selected field changes (after the change). \fBfield_init\fR +returns the current field init hook, if any (\fBNULL\fR if there is no such +hook). + +The function \fBset_field_term\fR sets a hook to be called at form-unpost time +and each time the selected field changes (before the change). \fBfield_term\fR +returns the current field term hook, if any (\fBNULL\fR if there is no such +hook). + +The function \fBset_form_init\fR sets a hook to be called at form-post time and +just after a page change once it is posted. \fBform_init\fR returns the +current form init hook, if any (\fBNULL\fR if there is no such hook). + +The function \fBset_form_term\fR sets a hook to be called at form-unpost time +and just before a page change once it is posted. \fBform_init\fR +returns the current form term hook, if any (\fBNULL\fR if there is no such +hook). +.SH RETURN VALUE +Routines that return pointers return \fBNULL\fR on error. Other routines +return one of the following: +.TP 5 +\fBE_OK\fR +The routine succeeded. +.TP 5 +\fBE_SYSTEM_ERROR\fR +System error occurred (see \fBerrno\fR). +.SH SEE ALSO +\fBcurses\fR(3X), \fBform\fR(3X). +.SH NOTES +The header file \fB<form.h>\fR automatically includes the header file +\fB<curses.h>\fR. +.SH PORTABILITY +These routines emulate the System V forms library. They were not supported on +Version 7 or BSD versions. +.SH AUTHORS +Juergen Pfeifer. Manual pages and adaptation for new curses by Eric +S. Raymond. +.\"# +.\"# The following sets edit modes for GNU EMACS +.\"# Local Variables: +.\"# mode:nroff +.\"# fill-column:79 +.\"# End: |