NAME

text_precision − select how text will be drawn. 

SYNOPSIS

C Syntax:

void text_precision ( fildes, precision );
int fildes, precision;

FORTRAN77 Syntax:

subroutine text_precision ( fildes, precision )
integer*4 fildes, precision

Pascal Syntax:

procedure text_precision ( fildes, precision:integer );

DESCRIPTION

Input Parameters

fildes Integer file descriptor returned by gopen when an I/O path to a graphics device is opened. 

precision One of the values

STRING_TEXT
CHARACTER_TEXT
STROKE_TEXT

Discussion

text_precision selects the method by which subsequent text strings are drawn.  If STRING_TEXT is selected, the device’s text capabilities are used.  Hardware text generation, in general, provides only limited approximations to the actual text-size attributes which may have been set.  Text attributes for hardware text may need to be set directly on the device by sending escape codes using a GESCAPE call. Consult the device’s reference manual for a list of these escape codes. 

STROKE_TEXT causes characters to be drawn at a higher precision than hardware text, but at a slower rate on some devices. 

Currently, STROKE_TEXT precision is used for CHARACTER_TEXT precision. 

DEFAULTS

precision = STROKE_TEXT

SEE ALSO

Starbase Reference: text(3G).  Starbase Graphics Techniques.  Fast Alpha / Font Manager Programmer’s Manual. 

Hewlett-Packard Company  —  November 03, 1994