[ol]using System;
using System.Runtime.InteropServices;
class Program
{
[DllImport("user32.dll")]
static extern bool ChangeDisplaySettingsEx(string lpszDeviceName, ref DEVMODE lpDevMode, IntPtr hwnd, uint dwflags, IntPtr lParam);
[StructLayout(LayoutKind.Sequential)]
struct DEVMODE
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
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 int dmDisplayOrientation;
public int dmDisplayFixedOutput;
public short dmColorBits;
public short dmCopies;
public short dmDefaultSource;
public short dmPrintQuality;
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;
}
const int CDS_UPDATEREGISTRY = 0x01;
const int CDS_TEST = 0x04;
const int DISP_CHANGE_SUCCESSFUL = 0;
static void Main(string[] args)
{
DEVMODE devMode = new DEVMODE();
devMode.dmDeviceName = new String(' ', 32);
devMode.dmSpecVersion = 0x0300;
devMode.dmSize = (short)Marshal.SizeOf(devMode);
devMode.dmPanningWidth = devMode.dmPositionX = devMode.dmDisplayFrequency = 0;
devMode.dmPanningHeight = devMode.dmPositionY = 0;
devMode.dmFields = 0x00080000 | 0x00100000; // DM_PELSWIDTH | DM_PELSHEIGHT
devMode.dmPanningWidth = devMode.dmPositionX = 1440; // 分辨率宽度
devMode.dmPanningHeight = devMode.dmPositionY = 900; // 分辨率高度
int result = ChangeDisplaySettingsEx(null, ref devMode, IntPtr.Zero, CDS_TEST, IntPtr.Zero);
if (result == DISP_CHANGE_SUCCESSFUL)
{
result = ChangeDisplaySettingsEx(null, ref devMode, IntPtr.Zero, CDS_UPDATEREGISTRY, IntPtr.Zero);
}
Console.WriteLine("分辨率已尝试设置为 1440x900");
}
}[/ol]复制代码
