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download PDF document: form_field_opts.3x.pdf

form_field_opts(3X) form_field_opts(3X)
NAME set_field_opts, field_opts_on, field_opts_off, field_opts - set and get field options
SYNOPSIS #include <form.h>
int set_field_opts(FIELD *field, Field_Options opts); Field_Options field_opts(const FIELD *field);
int field_opts_on(FIELD *field, Field_Options opts); int field_opts_off(FIELD *field, Field_Options opts);
DESCRIPTION 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.
The following standard options are defined (all are on by default):
O_ACTIVE 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.
O_AUTOSKIP Skip to the next field when this one fills.
O_BLANK The field is cleared whenever a character is entered at the first position.
O_EDIT The field can be edited.
O_NULLOK Allow a blank field.
O_PASSOK Validate field only if modified by user.
O_PUBLIC The field contents are displayed as data is entered.
O_STATIC Field buffers are fixed to field's original size. Turn this option off to create a dynamic field.
O_VISIBLE The field is displayed. If this option is off, display of the
O_DYNAMIC_JUSTIFY Permit dynamic fields to be justified, like static fields.
O_NO_LEFT_STRIP Preserve leading whitespace in the field buffer, which is normally discarded.
O_EDGE_INSERT_STAY When inserting into a field up to the boundary position, optionally delay the scrolling, so that the last inserted character remains visible, but advance the cursor to reflect the insertion. This allows the form library to display the inserted character in one-character fields as well as allowing the library to maintain consistent state.
O_INPUT_FIELD The set_max_field function checks for this extension, which allows a dynamic field to shrink if the new limit is smaller than the current field size.
RETURN VALUE Except for field_opts, each routine returns one of the following:
E_OK The routine succeeded.
E_BAD_ARGUMENT Routine detected an incorrect or out-of-range argument.
E_CURRENT The field is the current field.
E_SYSTEM_ERROR System error occurred (see errno(3)).
SEE ALSO curses(3X), form(3X). form_field_just(3X).
NOTES The header file <form.h> automatically includes the header file <curses.h>.
PORTABILITY These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
AUTHORS Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.
form_field_opts(3X)