HELP XWD                                         Aaron Sloman 1 Sep 2009

Purpose:            Dump a poplog graphic window to file, using xwd

See MAN * xwd for information on the Unix/Linux utility.

To make this library availabe do

    uses xwd

xwd(window-title, filename)

Example:

    xwd('Xgraphic', 'fig1.jpg')
    ;;; creates a jpeg dump of the Xgraphic window, called fig1.jpg

By default the turtle graphic windows have title 'Xgraphic'. If you wish
to dump a different graphic window, change the first argument.

This invokes the xwd utility, which creates a file of type .xwd
e.g. 'Xgraphic.xwd'

It then invokes the unix/linux utility 'convert', thus:

    convert Xgraphic.xwd fig1.jpg

This uses the suffix of the second argument to determine the type of
image file to create.


--- $usepop/pop/x/pop/help/xwd
--- Copyright University of Birmingham 2009. All rights reserved.