java & fullscreen over multiple monitors

Question

A snippet from my Java application:

 JFrame f = new JFrame();
 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
 GraphicsDevice gd         


        

Answer 1

You could try:

int width = 0;
int height = 0;
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();
for (GraphicsDevice curGs : gs)
{
  DisplayMode mode = curGs.getDisplayMode();
  width += mode.getWidth();
  height = mode.getHeight();
}

This should calculate the total width of multiple screens. Obviously it only supports horizontally aligned screens in the form above - you'd have to analyse the bounds of the graphics configurations to handle other monitor alignments (depends how bulletproof you want to make it).

Edit: And then set the size of your frame: f.setSize(width, height);