Touch screen browser-change the display resolution and refresh frequency in Windows

In Windows, you can implement different resolutions for different users.

First, create a C # program that can change the screen resolution. The source code is as follows:

1. Create a Windows application project named resolution
2. paste the code of each file:
Using system;
Using system. Collections. Generic;
Using system. componentmodel;
Using system. Data;
Using system. drawing;
Using system. text;
Using system. Windows. forms;

Using system. runtime. interopservices;
Namespace resolution
{
Public partial class form1: Form
{
Public form1 ()
{
Initializecomponent ();
}
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;

[Financialas (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;
[Financialas (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 );

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 );
}

Private void form1_load (Object sender, eventargs E)
{
Changeres ();
}

}
}

Transfer http://dev.csdn.net/article/40/40819.shtm

Http://blog.csdn.net/danielngn/archive/2004/10/05/125025.aspx

Http://www.cnblogs.com/allancandy/articles/221958.html

Source code download http://download.csdn.net/source/634828

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