A DESCRIPTION OF THE REQUEST :
In order to be able to realtistcally display certin type of graphics, it is important to know the DPI of a screen. Screens, and other device, these days are no-longer limited to 72 DPI. Currently there is now way to find the actual resolution of a screen, or any drawing routine that would allow the use of 'real world' units.

Since 'java.awt.DisplayMode' provide operations to find most other details on a device, I would expect to also include a method to describe the DPI.

Affects all platforms.


JUSTIFICATION :
One example situation is if I want to draw a line that is 5cm long. If I assume 72 DPI, then the line will be much shorter than 5cm if I hold up a ruler to the screen. This is is useful for graphics programs which are trying to provide the user a WYSIWYG display.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
see description & justification.
ACTUAL -
If I use Toolkit.getScreenResolution() I get 72 DPI all the time and this is not even an averaging of the resolutions of the screens available.

CUSTOMER SUBMITTED WORKAROUND :
Possibly using JNI to access native device information. I have not yet identified whether the information provided by 'java.awt.GraphicsDevice' would allow me to identify the appropriate device in native code.