User`s guide

R2008b
17-4
Specifying Address Space Protection During Startup on Windows Platforms
When you start MATLAB on Microsoft Windows 32-bit platforms, you can set a startup
option to help ensure the largest available contiguous block of memory after startup,
which is useful if you run memory-intensive operations, such as processing large data
sets. You can use the new -shield startup option to specify different levels of protection
of the address space during the MATLAB startup process. This can also help resolve
problems if MATLAB fails to start. For more information, see the matlab (Windows)
reference page.
Changes to -nojvm Startup Option
When you start MATLAB with the -nojvm startup option, Handle Graphics functionality
will no longer be supported. (The -nojvm option is available for UNIX platforms; see
background information at the matlab (UNIX) reference page.)
Some aspects of MATLAB and related products use Handle Graphics in a way that
might not be obvious. This includes anything that is based on or works using figures in
MATLAB. Here is a summary of the affected features:
• Creating figures and performing plotting tasks, such as using the plot, axes,
getframe, and gcf functions.
• Printing figures and using related functions such as print, hgexport, and saveas.
• Creating GUIs in MATLAB using GUI-building functions such as warndlg.
• Using Simulink scopes and printing Simulink models.
In MATLAB Version 7.7 (R2008b), if you use the -nojvm startup option and use Handle
Graphics functionality, MATLAB produces this warning:
This functionality is no longer supported under the -nojvm startup
option.
In a future release, instead of a warning, MATLAB will produce an error when you start
with the -nojvm option and use Handle Graphics functionality.
Compatibility Considerations
To avoid the warning, start MATLAB without the -nojvm startup option:
• If you have been using the -nojvm startup option to work in a command line
environment or because you do not use the MATLAB desktop, use the -nodesktop
startup option instead.