How do I determine the resolution of the screen where the JFrame resides?

Question

I wish to determine the screen resolution where my java application is currently showing.

For example, lets say a user has my java application on his second monitor and the two monitors have the specifications of: primary 1024x1280 (Portrait rotation), secondary 1280x1024 (Landscape rotation).

I want to make the height of my popup JList fit within a comfortable margin of the second monitor. I won't get the correct results from Toolkit#getDefaultToolkit()#getScreenSize() as this would give me the dimensions from the primary monitor.

I could get the size of all the monitors by using GraphicsEnvironment#getScreenDevices() but how do I figure out which of these devices my JFrame is running within?

Thanks for your time.

-Dennis

Take the Rectangle bounds of the frame and determine if it fits inside the Rectangle bounds of any of the GraphicsDevices. For [example](http://stackoverflow.com/questions/11714215/detect-current-screen-bounds/11714302#11714302) — MadProgrammer, Aug 09 '13 at 20:07

score 3 · Accepted Answer · answered Aug 09 '13 at 20:10

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Assuming frame is your JFrame, you can simply use the following code to retrieve the GraphicsDevice:

frame.getGraphicsConfiguration().getDevice();

From there, you can get the whole the information of the screen on which the frame is displayed.

answered Aug 09 '13 at 20:10

Guillaume Polet

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score 2 · Answer 2 · edited May 23 '17 at 11:56

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check out this link . the answer is already explained here. ( The accepted answer ) Java Toolkit Getting Second screen size

you can get from a JFrame to its device via the getGraphicsConfigration() method, which returns a GraphicsConfiguration that has a getDevice()

edited May 23 '17 at 11:56

Community

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answered Aug 09 '13 at 20:15

Kinaan Khan Sherwani

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Thank you. I missed that during my search. – D-Klotz Aug 09 '13 at 20:58

How do I determine the resolution of the screen where the JFrame resides?

2 Answers2