C# 调整分辨率，主要是用在网吧里面，有几种配置的机子。统一调成显示器最大的分辨率。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Resolution;
using System.Collections;

namespace Resolution
{
    public class Display
    {
        //public DEVMODE getResolution();

        //public List<DEVMODE> getAllResolution();
        public Resolution.DEVMODE devMode = new Resolution.DEVMODE();
        public Resolution.DMDO dmdo = new Resolution.DMDO();
        public Resolution resolution = new Resolution();
        Resolution.DEVMODE dm = new Resolution.DEVMODE();
        public readonly int[] disPlay = new int[400];
        int count = 0;
       
        public Display()
        {
           
           
            List<Resolution.DEVMODE> allMode = new List<Resolution.DEVMODE>();
            allMode = resolution.getAllResolution();
            foreach (Resolution.DEVMODE dm in allMode)
            {
                disPlay[count] = dm.dmPelsWidth;
             
                count++;
               

            }
 
            //找出里面支持最大分辨率
           

      
 
        }
        public int MaxWidth()
        {
            int max = 800;
            foreach (var item in disPlay)
            {
               
                if (item > max)
                {
                    max = item;
                }
               
            }
            return max;
        }
        public int DisplayCurrent()
        {
            dm = resolution.getResolution();
            int x = dm.dmPelsWidth;
        
            return x;
           
        }
        public void SetRosulution(int width)
        {
            int height = 0;
            switch (width)
            {
                case 1920:
                    height = 1080;
                    break;
                case 1680:
                    height = 1050;
                    break;
                case 1280:
                    height = 1024;
                    break;

            }
            resolution.setResolution(width, height, 60);
        }
       
       

    }
    class Program
    {
        static void Main(string[] args)
        {
            Display dis = new Display();
            int x = dis.MaxWidth();
            int y = dis.DisplayCurrent();

            if (x != y)
            {
                dis.SetRosulution(x);
 
            }
           
        }
    }
}