Setting Parameters for the Application Launchers

Increasing the amount of memory that Oxygen XML Developer uses on Windows

To increase the memory available to Oxygen XML Developer on Windows:

Browse to the installation directory of Oxygen XML Developer.
Locate the -Xmx parameter in the oxygenDeveloper17.1.vmoptions file.
Note: For 32-bit Windows modify the parameter to -Xmx1024m or larger, but not over -Xmx1200m. Make sure you do not exceed your physical RAM. For 64-bit Windows modify the parameter to a larger value (for example -Xmx2048m). We recommended you to not use more than half of your existing physical RAM.

Restart Oxygen XML Developer. Go to Help > About and verify the amount of memory that is actually available (see the last row in the About dialog box). If Oxygen XML Developer does not start and you receive and error message saying that it could not start the JVM, decrease the -Xmx parameter and try again.

For Windows Vista/7/8/10, copy the oxygenDeveloper17.1.vmoptions to your desktop (or to any other folder with write access), modify it there, then copy it back to the Oxygen XML Developer installation folder.

Note: The parameters from the .vmoptions file are used when you start Oxygen XML Developer with the oxygen launcher (or with the desktop shortcut). In case you use the command line script oxygen.bat/oxygen.sh, modify the -Xmx parameter in the script file.

Increasing the amount of memory that Oxygen XML Developer uses on OS X

To increase the memory available to Oxygen XML Developer on OS X:

Ctrl Single-Click (Command Single-Click on OS X) (or right-click) the Oxygen XML Developer icon in Finder.
From the contextual menu, select Show Package Contents.
Go to the contents directory and edit the Info.plist file.
Note: You can open this file either with the Property List Editor, or the TextEdit.
Look for the VMOptions key and adjust the -Xmx parameter to a larger value (for example -Xmx1500m)
Note: For a Mac kit bundled with Java 7, look for the VMOptionArray key and add the -Xmx parameter in a new string element from the array element. For example, for 1500 MB use the following:
```
<string>-Xmx1500m</string>
```
Tip: Try not to use more than half of your existing physical RAM if possible.

Setting a system property

To set a system property, edit the application launcher and add a parameter after the %OXYGEN_JAVA% token, using the following form:

-Dproperty.name=value

You can also set a system property through a parameter prefixed with -Doxy in the command line used to start the application:

oxygenDeveloper17.1.exe "-Doxyproperty.name=value"

All system properties are displayed in the System properties tab of the About dialog box.

To view the list of Oxygen XML Developer system properties, go to Custom System Properties.

Disabling DPI Scaling

Some users may prefer the look of smaller icons in a HiDPI display. To achieve this, display scaling needs to be disabled for high DPI settings. To disable the DPI scaling, set the following property in .vmoptions (or in the .bat script):

sun.java2d.dpiaware=false