C#中改变显示器的分辨率

C#中改变显示器的分辨率

 

下面的代码实现修改显示器分辨率和刷新频率的功能：

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Runtime.InteropServices;namespace ScreenResolution{public class Form1 : System.Windows.Forms.Form{public enum DMDO{DEFAULT = 0,D90 = 1,D180 = 2,D270 = 3}[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]struct DEVMODE{public const int DM_DISPLAYFREQUENCY = 0x400000;public const int DM_PELSWIDTH = 0x80000;public const int DM_PELSHEIGHT = 0x100000;private const int CCHDEVICENAME = 32;private const int CCHFORMNAME = 32;[MarshalAs(UnmanagedType.ByValTStr, SizeConst=CCHDEVICENAME)]public string dmDeviceName;public short dmSpecVersion;public short dmDriverVersion;public short dmSize;public short dmDriverExtra;public int dmFields;public int dmPositionX;public int dmPositionY;public DMDO dmDisplayOrientation;public int dmDisplayFixedOutput;public short dmColor;public short dmDuplex;public short dmYResolution;public short dmTTOption;public short dmCollate;[MarshalAs(UnmanagedType.ByValTStr, SizeConst=CCHFORMNAME)]public string dmFormName;public short dmLogPixels;public int dmBitsPerPel;public int dmPelsWidth;public int dmPelsHeight;public int dmDisplayFlags;public int dmDisplayFrequency;public int dmICMMethod;public int dmICMIntent;public int dmMediaType;public int dmDitherType;public int dmReserved1;public int dmReserved2;public int dmPanningWidth;public int dmPanningHeight;}[DllImport("user32.dll", CharSet=CharSet.Auto)]//static extern int ChangeDisplaySettings( DEVMODE lpDevMode, int dwFlags);static extern int ChangeDisplaySettings( [In] ref DEVMODE lpDevMode, int dwFlags);private System.ComponentModel.Container components = null;public Form1(){InitializeComponent();}protected override void Dispose( bool disposing ){if( disposing ){if (components != null){components.Dispose();}}base.Dispose( disposing );}#region Windows Form Designer generated codeprivate void InitializeComponent(){this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);this.ClientSize = new System.Drawing.Size(292, 273);this.Text = "改变屏幕分辨率的例子";}#endregionstatic void Main(){Form1 r = new Form1();r.ChangeRes();Application.Run(new Form1());}void ChangeRes(){Form1 t = new Form1();long RetVal=0;DEVMODE dm = new DEVMODE();dm.dmSize= (short)Marshal.SizeOf(typeof(DEVMODE));dm.dmPelsWidth = 1024;dm.dmPelsHeight= 768;dm.dmDisplayFrequency=85;dm.dmFields = DEVMODE.DM_PELSWIDTH | DEVMODE.DM_PELSHEIGHT | DEVMODE.DM_DISPLAYFREQUENCY;RetVal = ChangeDisplaySettings(ref dm, 0);}}}

Trackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=722220