form_field_opts − set and get field options
int set_field_opts(FIELD *field, Field_Options opts);
int field_opts_on(FIELD *field, Field_Options opts);
int field_opts_off(FIELD *field, Field_Options opts);
Field_Options field_opts(const FIELD *field);
The function set_field_opts sets all the given field’s option bits (field option bits may be logically-OR’ed together).
The function field_opts_on turns on the given option bits, and leaves others alone.
The function field_opts_off turns off the given option bits, and leaves others alone.
The function field_opts returns the field’s current option bits.
standard options are defined (all are on by default):
The field is visited during processing. If this option is off, the field will not be reachable by navigation keys. Please notice that an invisible field appears to be inactive also.
Skip to the next field when this one fills.
The field is cleared whenever a character is entered at the first position.
The field can be edited.
Allow a blank field.
Validate field only if modified by user.
The field contents are displayed as data is entered.
Field buffers are fixed to field’s original size. Turn this option off to create a dynamic field.
The field is displayed. If this option is off, display of the field is suppressed.
Words that do not fit on a line are wrapped to the next line. Words are blank-separated.
option is defined (extensions are off by default):
Permit dynamic fields to be justified, like static fields.
Except for field_opts, each routine returns one of the following:
The routine succeeded.
Routine detected an incorrect or out-of-range argument.
The field is the current field.
System error occurred (see errno).
ncurses(3NCURSES), form(3FORM). field_just(3FORM).
The header file <form.h> automatically includes the header file <curses.h>.
These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.