X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fform_hook.3x;h=e84aa972f4c2a76f65607f5013004e9ca9f54327;hp=2943b8804993669e7ce457d71a1575845fc5230a;hb=e5d1530ca229aef94a3c84ad33f8ae89f35c4045;hpb=96d6b16de0d487e5d3aed0302a179dbce11b5d96;ds=sidebyside diff --git a/man/form_hook.3x b/man/form_hook.3x index 2943b880..e84aa972 100644 --- a/man/form_hook.3x +++ b/man/form_hook.3x @@ -1,6 +1,7 @@ '\" t .\"*************************************************************************** -.\" Copyright (c) 1998-2007,2010 Free Software Foundation, Inc. * +.\" Copyright 2018-2019,2020 Thomas E. Dickey * +.\" Copyright 1998-2007,2010 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 * @@ -27,68 +28,74 @@ .\" authorization. * .\"*************************************************************************** .\" -.\" $Id: form_hook.3x,v 1.11 2010/12/04 18:40:45 tom Exp $ +.\" $Id: form_hook.3x,v 1.16 2020/10/18 00:06:29 tom Exp $ .TH form_hook 3X "" .SH NAME \fBform_hook\fR \- set hooks for automatic invocation by applications .SH SYNOPSIS \fB#include \fR +.sp +\fBint set_field_init(FORM *\fP\fIform\fP\fB, Form_Hook \fP\fIfunc\fP\fB);\fP .br -int set_field_init(FORM *form, Form_Hook func); +\fBForm_Hook field_init(const FORM *\fP\fIform\fP\fB);\fP +.sp +\fBint set_field_term(FORM *\fP\fIform\fP\fB, Form_Hook \fP\fIfunc\fP\fB);\fP .br -Form_Hook field_init(const FORM *form); +\fBForm_Hook field_term(const FORM *\fP\fIform\fP\fB);\fP +.sp +\fBint set_form_init(FORM *\fP\fIform\fP\fB, Form_Hook \fP\fIfunc\fP\fB);\fP .br -int set_field_term(FORM *form, Form_Hook func); +\fBForm_Hook form_init(const FORM *\fP\fIform\fP\fB);\fP +.sp +\fBint set_form_term(FORM *\fP\fIform\fP\fB, Form_Hook \fP\fIfunc\fP\fB);\fP .br -Form_Hook field_term(const FORM *form); -.br -int set_form_init(FORM *form, Form_Hook func); -.br -Form_Hook form_init(const FORM *form); -.br -int set_form_term(FORM *form, Form_Hook func); -.br -Form_Hook form_term(const FORM *form); +\fBForm_Hook form_term(const FORM *\fP\fIform\fP\fB);\fP .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. .PP 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 +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). .PP 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 +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). .PP 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 +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). .PP 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 +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 +Routines that return pointers return \fBNULL\fR on error. +Other routines return one of the following: .TP 5 .B E_OK The routine succeeded. .TP 5 .B E_SYSTEM_ERROR -System error occurred (see \fBerrno\fR). +System error occurred (see \fBerrno\fR(3)). .SH SEE ALSO \fBcurses\fR(3X), \fBform\fR(3X). .SH NOTES The header file \fB\fR automatically includes the header file \fB\fR. .SH PORTABILITY -These routines emulate the System V forms library. They were not supported on +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. +Juergen Pfeifer. +Manual pages and adaptation for new curses by Eric S. Raymond.