NAME

dumpapa16 − dump apa16 display memory as a binary file

SYNOPSIS

dumpapa16

DESCRIPTION

Dumpapa16 copies the contents of the apa16 display memory to the standard output for redirection to a binary file or for processing as a bitmap image. 

The output consists of a two-integer header (horizontal image size in pixels; vertical image size in pixels) followed by the image itself in left-to-right, top-to-bottom order, (horizontal_pixels / 8) bytes per scanline. For the apa16 the horizontal size is 1024; the vertical size is 768. 

Before any image dumping is begun, /dev/apa16 is opened to be sure the device is present. 

Dumpapa16 is provided primarily for use by bitprt(1).

FILES

/dev/apa16
/dev/bus

SEE ALSO

bitprt(1), lpr(1), scale(1), ibm6155(4), lp(4), lpfilter(8R)

BUGS

If the apa16 was in glass-tty mode, the screen is cleared when dumpapa16 completes. 

PRPQs 5799-WZQ/5799-PFF: IBM/4.3  —  15 Dec 1986