NAME

blanktime − sets the screen blanking timeout

SPECIFICATION

C
blanktime(nframes)
long nframes;

FORTRAN
subroutine blankt(nframes)
integer*4 nframes

Pascal
procedure blanktime(nframes: longint);

DESCRIPTION

The screen blanks (turns black) after the system receives no input for about 15 minutes.  This protects the color display.  blanktime changes the amount of time the system waits before blanking the screen.  It can also disable the screen blanking feature. 

nframes specifies the screen blanking timeout in frame times based on the standard 60-Hz monitor.  For software compatibility, the factor of 60 is used, regardless of the monitor type.  When calculating the value of nframes, simply multiply the desired blanking latency period (in seconds) by 60.  For example, when nframes is 1800, the blanking latency period is 5 minutes.  If there are 60 frames per second, nframes is 60 times the number of seconds that the system waits before blanking the screen.  When nframes is zero, screen blanking is disabled. 

SEE ALSO

blanktime(1G) Programming Guide, Section 2.1, Initialization

Version 3.6  —  December 20, 1987