来自瑞典的 Hej，
我正在尝试参考帖子中的代码：Powershell script to change screen Orientation
该脚本有效。目标是确保旋转是横向 - 默认或纵向 90 度顺时针。
我需要更改当前代码以仅允许 2 个值或确保脚本仅运行一次。
无论哪种方式，我都需要知道 CDS_UPDATEREGISTRY 的注册表项存储在哪里。虽然我无法弄清楚每次旋转的值更改存储在注册表中的哪个位置？
有没有人知道值在哪里存储？
代码：
Function Set-ScreenResolutionAndOrientation {
<#
.Synopsis
Sets the Screen Resolution of the primary monitor
.Description
Uses Pinvoke and ChangeDisplaySettings Win32API to make the change
.Example
Set-ScreenResolutionAndOrientation
#>
$pinvokeCode = @"
using System;
using System.Runtime.InteropServices;
namespace Resolution
{
[StructLayout(LayoutKind.Sequential)]
public 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 dmColor;
public short dmDuplex;
public short dmYResolution;
public short dmTTOption;
public short dmCollate;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
public string dmFormName;
public short dmLogPixels;
public short 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;
};
class NativeMethods
{
[DllImport("user32.dll")]
public static extern int EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE devMode);
[DllImport("user32.dll")]
public static extern int ChangeDisplaySettings(ref DEVMODE devMode, int flags);
public const int ENUM_CURRENT_SETTINGS = -1;
public const int CDS_UPDATEREGISTRY = 0x01;
public const int CDS_TEST = 0x02;
public const int DISP_CHANGE_SUCCESSFUL = 0;
public const int DISP_CHANGE_RESTART = 1;
public const int DISP_CHANGE_FAILED = -1;
public const int DMDO_DEFAULT = 0;
public const int DMDO_90 = 1;
public const int DMDO_180 = 2;
public const int DMDO_270 = 3;
}
public class PrmaryScreenResolution
{
static public string ChangeResolution()
{
DEVMODE dm = GetDevMode();
if (0 != NativeMethods.EnumDisplaySettings(null, NativeMethods.ENUM_CURRENT_SETTINGS, ref dm))
{
// swap width and height
int temp = dm.dmPelsHeight;
dm.dmPelsHeight = dm.dmPelsWidth;
dm.dmPelsWidth = temp;
// determine new orientation based on the current orientation
switch(dm.dmDisplayOrientation)
{
case NativeMethods.DMDO_DEFAULT:
dm.dmDisplayOrientation = NativeMethods.DMDO_270;
break;
case NativeMethods.DMDO_270:
dm.dmDisplayOrientation = NativeMethods.DMDO_180;
break;
case NativeMethods.DMDO_180:
dm.dmDisplayOrientation = NativeMethods.DMDO_90;
break;
case NativeMethods.DMDO_90:
dm.dmDisplayOrientation = NativeMethods.DMDO_DEFAULT;
break;
default:
// unknown orientation value
// add exception handling here
break;
}
int iRet = NativeMethods.ChangeDisplaySettings(ref dm, NativeMethods.CDS_TEST);
if (iRet == NativeMethods.DISP_CHANGE_FAILED)
{
return "Unable To Process Your Request. Sorry For This Inconvenience.";
}
else
{
iRet = NativeMethods.ChangeDisplaySettings(ref dm, NativeMethods.CDS_UPDATEREGISTRY);
switch (iRet)
{
case NativeMethods.DISP_CHANGE_SUCCESSFUL:
{
return "Success";
}
case NativeMethods.DISP_CHANGE_RESTART:
{
return "You Need To Reboot For The Change To Happen.\n If You Feel Any Problem After Rebooting Your Machine\nThen Try To Change Resolution In Safe Mode.";
}
default:
{
return "Failed To Change The Resolution";
}
}
}
}
else
{
return "Failed To Change The Resolution.";
}
}
private static DEVMODE GetDevMode()
{
DEVMODE dm = new DEVMODE();
dm.dmDeviceName = new String(new char[32]);
dm.dmFormName = new String(new char[32]);
dm.dmSize = (short)Marshal.SizeOf(dm);
return dm;
}
}
}
"@
Add-Type $pinvokeCode -ErrorAction SilentlyContinue
[Resolution.PrmaryScreenResolution]::ChangeResolution()
}
Set-ScreenResolutionAndOrientation