NAMEform_field_info - retrieve field characteristics
int *frow, int *fcol, int *nrow, int *nbuf);
DESCRIPTIONThe function field_info returns the sizes and other attributes passed in to the field at its creation time. The attributes are: height, width, row of upper-left corner, column of upper-left corner, number off-screen rows, and number of working buffers.
The function dynamic_field_info returns the actual size of the field, and its maximum possible size. If the field has no size limit, the location addressed by the third argument will be set to 0. A field can be made dynamic by turning off the O_STATIC option with field_opts_off.
RETURN VALUEThese routines return one of the following:
- The routine succeeded.
- System error occurred (see errno).
- Routine detected an incorrect or out-of-range argument.
SEE ALSOcurses(3X) and related pages whose names begin "form_" for detailed descriptions of the entry points.
NOTESThe header file <form.h> automatically includes the header file <curses.h>.
PORTABILITYThese routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
A null (zero pointer) is accepted for any of the return values, to ignore that value. Not all implementations allow this, e.g., Solaris 2.7 does not.