转贴:在windows下要实现不同用户拥有不同分辨率其实可以自己动手来实现,看看如下实例吧:首先制作一个能改变屏幕分辨率的C#程序,源代码如下,使用了VS.NET 2005 BETA 1: 1、新建Windows Application工程,取名为ScreenResolution 2、粘贴各文件的代码: //-------------------------------------------------------------------------------- // //Program.cs // //--------------------------------------------------------------------------------#region Using directives using System; using System.Collections.Generic; using System.Windows.Forms; #endregion namespace ScreenResolution { static class Program { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); Application.EnableRTLMirroring(); Application.Run(new Form1()); } } } //-------------------------------------------------------------------------------- // //Form1.cs // //--------------------------------------------------------------------------------using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Runtime.InteropServices; namespace ScreenResolution { partial 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(int chMode) { Form1 t = new Form1(); long RetVal = 0; DEVMODE dm = new DEVMODE(); dm.dmSize = (short)Marshal.SizeOf(typeof(DEVMODE)); if (chMode == 1) { dm.dmPelsWidth = 1600; dm.dmPelsHeight = 1024; dm.dmDisplayFrequency = 85; } else if (chMode == 2) { 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); } private void Form1_Load(object sender, EventArgs e) { ChangeRes(1); } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { ChangeRes(2); } } } 3、在Design视图下将WindowsState设置成Minimized,ShowInTaskbar设置成False 其次根据每个用户的需要修改ChangeRes方法里对分辨率的设置,生成工程后将可执行文件放在此用户的启动文件夹内 总结: 程序的原理很简单,在用户登录时将分辨率设置成用户的期望值,程序在用户登出前始终运行,但用户不会察觉,在用户登出时,程序被终止,分辨率被设置回特定值,以此实现统一登录分辨率并且各用户有自己的分辨率。 改进: 如果用户较多,可以通过程序参数来改变屏幕分辨率,避免多次生成工程并产生多个版本的混乱。
1、新建Windows Application工程,取名为ScreenResolution
2、粘贴各文件的代码: //--------------------------------------------------------------------------------
//
//Program.cs
//
//--------------------------------------------------------------------------------#region Using directives
using System;
using System.Collections.Generic;
using System.Windows.Forms;
#endregion
namespace ScreenResolution
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.EnableRTLMirroring();
Application.Run(new Form1());
}
}
} //--------------------------------------------------------------------------------
//
//Form1.cs
//
//--------------------------------------------------------------------------------using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
namespace ScreenResolution
{
partial 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(int chMode)
{
Form1 t = new Form1();
long RetVal = 0;
DEVMODE dm = new DEVMODE();
dm.dmSize = (short)Marshal.SizeOf(typeof(DEVMODE));
if (chMode == 1)
{
dm.dmPelsWidth = 1600;
dm.dmPelsHeight = 1024;
dm.dmDisplayFrequency = 85;
}
else if (chMode == 2)
{
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);
}
private void Form1_Load(object sender, EventArgs e)
{
ChangeRes(1);
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
ChangeRes(2);
}
}
} 3、在Design视图下将WindowsState设置成Minimized,ShowInTaskbar设置成False
其次根据每个用户的需要修改ChangeRes方法里对分辨率的设置,生成工程后将可执行文件放在此用户的启动文件夹内
总结:
程序的原理很简单,在用户登录时将分辨率设置成用户的期望值,程序在用户登出前始终运行,但用户不会察觉,在用户登出时,程序被终止,分辨率被设置回特定值,以此实现统一登录分辨率并且各用户有自己的分辨率。
改进:
如果用户较多,可以通过程序参数来改变屏幕分辨率,避免多次生成工程并产生多个版本的混乱。