java&全屏超过多个显示器 [英] java & fullscreen over multiple monitors

问题描述

我的Java应用程序的片段：

A snippet from my Java application:

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

所以它的作用是让它自动全屏。现在奇怪的是程序是全屏的，但只在一台显示器上！
例如我有一个带有两个屏幕的Windows Vista系统，它们组合在一个桌面上。
怎么办自动让它全屏显示所有显示器？

So what it does is make it self fullscreen. Now the odd thing is that the program is fullscreen but only on one monitor! E.g. I have a windows vista system with two screens that are combined in one desktop. What to do automatically let it go fullscreen over all monitors?

好的我试过了：

import java.awt.image.ColorModel;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;

class grdevs
{
    public static void main(String [] args)
    {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice[] gs = ge.getScreenDevices();
        for(GraphicsDevice curGs : gs)
        {
            GraphicsConfiguration[] gc = curGs.getConfigurations();
            for(GraphicsConfiguration curGc : gc)
            {
                Rectangle bounds = curGc.getBounds();
                ColorModel cm = curGc.getColorModel();

                System.out.println("" + bounds.getX() + "," + bounds.getY() + " " + bounds.getWidth() + "x" + bounds.getHeight() + " " + cm);
            }
        } 
    }
}

但是它给出：

0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
0.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0
1024.0,0.0 1024.0x768.0 DirectColorModel: rmask=ff0000 gmask=ff00 bmask=ff amask=0

例如，我希望设备能够合成2048x768，因为它们合二为一（我点击了扩展桌面）。

E.g I would expect a device capable of 2048x768 as they are combined in one (I clicked on "extend desktop").

推荐答案

您可以尝试：

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();
}

这应计算多个屏幕的总宽度。显然它只支持上面形式的水平对齐屏幕 - 您必须分析图形配置的边界以处理其他显示器对齐（取决于您想要制作它的防弹方式）。

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).

编辑：然后设置框架的大小： f.setSize（宽度，高度）;

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

这篇关于java&全屏超过多个显示器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！