改变显示器分辨率:)

  1using System;
  2using System.Drawing;
  3using System.Collections;
  4using System.ComponentModel;
  5using System.Windows.Forms;
  6using System.Data;
  7using System.Runtime.InteropServices;
  8
  9namespace ScreenResolution
 10{
 11
 12    public class Form1 : System.Windows.Forms.Form
 13    {
 14        public enum DMDO
 15        {
 16            DEFAULT = 0,
 17            D90 = 1,
 18            D180 = 2,
 19            D270 = 3
 20        }
 21
 22        [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
 23            struct DEVMODE
 24        {
 25            public const int DM_DISPLAYFREQUENCY = 0x400000;
 26            public const int DM_PELSWIDTH = 0x80000;
 27            public const int DM_PELSHEIGHT = 0x100000;
 28            private const int CCHDEVICENAME = 32;
 29            private const int CCHFORMNAME = 32;
 30
 31            [MarshalAs(UnmanagedType.ByValTStr, SizeConst=CCHDEVICENAME)]
 32            public string dmDeviceName;
 33            public short dmSpecVersion;
 34            public short dmDriverVersion;
 35            public short dmSize;
 36            public short dmDriverExtra;
 37            public int dmFields;
 38
 39            public int dmPositionX;
 40            public int dmPositionY;
 41            public DMDO dmDisplayOrientation;
 42            public int dmDisplayFixedOutput;
 43
 44            public short dmColor;
 45            public short dmDuplex;
 46            public short dmYResolution;
 47            public short dmTTOption;
 48            public short dmCollate;
 49            [MarshalAs(UnmanagedType.ByValTStr, SizeConst=CCHFORMNAME)]
 50            public string dmFormName;
 51            public short dmLogPixels;
 52            public int dmBitsPerPel;
 53            public int dmPelsWidth;
 54            public int dmPelsHeight;
 55            public int dmDisplayFlags;
 56            public int dmDisplayFrequency;
 57            public int dmICMMethod;
 58            public int dmICMIntent;
 59            public int dmMediaType;
 60            public int dmDitherType;
 61            public int dmReserved1;
 62            public int dmReserved2;
 63            public int dmPanningWidth;
 64            public int dmPanningHeight;
 65        }
 66
 67        [DllImport("user32.dll", CharSet=CharSet.Auto)]
 68            //static extern int ChangeDisplaySettings( DEVMODE lpDevMode,  int 
 69
 70        //dwFlags);
 71
 72        static extern int ChangeDisplaySettings( [In] ref DEVMODE lpDevMode,  
 73
 74            int dwFlags);
 75        private System.ComponentModel.Container components = null;
 76//        [STAThread]
 77//        static void Main()
 78//        {
 79//            Application.Run(new Form1());
 80//        }
 81        public Form1()
 82        {
 83            InitializeComponent();
 84        }
 85        protected override void Dispose( bool disposing )
 86        {
 87            if( disposing )
 88            {
 89                if (components != null)
 90                {
 91                    components.Dispose();
 92                }
 93            }
 94            base.Dispose( disposing );
 95        }
 96
 97        Windows Form Designer generated code#region Windows Form Designer generated code
 98        private void InitializeComponent()
 99        {
100            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
101            this.ClientSize = new System.Drawing.Size(292, 273);
102            this.Text = "改变屏幕分辨率的例子";
103
104        }
105        #endregion
106
107        static void Main()
108        {
109            Form1 r = new Form1();
110            r.ChangeRes();
111            Application.Run(new Form1());
112        }
113
114        void ChangeRes()
115        {
116            Form1 t = new Form1();
117            long RetVal=0;
118            DEVMODE dm = new DEVMODE();
119            dm.dmSize= (short)Marshal.SizeOf(typeof(DEVMODE));
120            dm.dmPelsWidth =1024;
121            dm.dmPelsHeight= 768;
122            dm.dmDisplayFrequency=85;
123            dm.dmFields = DEVMODE.DM_PELSWIDTH | DEVMODE.DM_PELSHEIGHT | 
124
125            DEVMODE.DM_DISPLAYFREQUENCY;
126            RetVal = ChangeDisplaySettings(ref dm, 0);
127        }
128    }
129}