改变分辨率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 code private 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"; } #endregion static 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); } } }
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 code
private 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"; }
#endregion static 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);
}
}
}