Okay so i've tried finding an answer for this pretty much all day but can't seem to find any. :/
Using JFrame, i've been trying to set a window to 1920x1080 resolution but when i try doing this it seems to use my whole screen as a window, kinda like my screen resolution is 1920x1080 but it's 3840x2160, why is this? When i run another application with a 1920x1080 resolution window it seems to not be the same size. (it's smaller)
Current code:
JFrame frame = new JFrame("Test");
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
int width = gd.getDisplayMode().getWidth();
int height = gd.getDisplayMode().getHeight();
frame.setSize(width, height);
System.out.println(width+" "+height);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setResizable(false);
frame.setVisible(true);
The output from this is a window covering my screen tho a little off at some parts and then in the console it says 3840 2160. If i change the frame.setSize(width, height);
from the current to frame.setSize(1920, 1080); it still makes the window the same size. I think the maximum is a little below 1920x1080 for some reason. :/ Any ideas here?
EDIT: It seems using frame.setSize(Toolkit.getDefaultToolkit().getScreenSize()); makes the window size 1536x864 and not 3840x2160, setting it any higher than 1536x864 makes no difference, it'll say the size is bigger but i can't see any difference, it covers the screen anyway.