The image help menu
This menu uses the new desktop facilities of Java 6, in the package java.awt.desktop. Selecting any option except the last one (About GRIP) launches your system's default browser in order to display help from HTML files. This mechanism does not work in Java versions earlier than 6.
- displays the Contents page of the current manual.
- displays the Index page of the current manual.
- displays programming information in Sun's standard javadoc format. Java programmers can use this to modify and extend GRIP.
- displays a message window which shows not only the version identifier for this copy of GRIP but also some useful information about the Java Virtual Machine (JVM) in which it is running. The information includes how much memory is currently being used and how much remains available for GRIP to use. It can be interesting to look at this at various stages when opening, closing and processing images. As discussed elsewhere, an image is a large amount of data so it is quite possible to run out of memory when several are opened.