PowerShell-Skript zum Ändern der Bildschirmausrichtung

Ich habe ein Skript geschrieben, um die primäre Bildschirmausrichtung in Hochformat zu ändern. Mein Bildschirm ist 1920X1200 Es läuft und es wurde kein Fehler gemeldet. Aber der Bildschirm dreht sich nicht wie erwartet.

Der Code wurde von Set-ScreenResolution (Andy Schneider) geändert.
Kann mir jemand helfen, einen Blick darauf zu werfen?

Einige Referenzseiten:

Set-ScreenResolution:http://gallery.technet.microsoft.com/ScriptCenter/2a631d72-206d-4036-a3f2-2e150f297515/

C-Code für Änderungserkennung (MSDN) Programmgesteuertes Ändern der Bildschirmausrichtung:http://msdn.microsoft.com/en-us/library/ms812499.aspx

Mein Code:

Function Set-ScreenOrientation { 



$pinvokeCode = @" 

using System; 
using System.Runtime.InteropServices; 

namespace Resolution 
{ 

    [StructLayout(LayoutKind.Sequential)] 
    public struct DEVMODE1 
    { 
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
        public string dmDeviceName; 
        public short dmSpecVersion; 
        public short dmDriverVersion; 
        public short dmSize; 
        public short dmDriverExtra; 
        public int dmFields; 

        public short dmOrientation; 
        public short dmPaperSize; 
        public short dmPaperLength; 
        public short dmPaperWidth; 

        public short dmScale; 
        public short dmCopies; 
        public short dmDefaultSource; 
        public short dmPrintQuality; 
        public short dmColor; 
        public short dmDuplex; 
        public short dmYResolution; 
        public short dmTTOption; 
        public short dmCollate; 
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
        public string dmFormName; 

        [MarshalAs(UnmanagedType.U4)] 
        public short dmDisplayOrientation

        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 User_32 
    { 
        [DllImport("user32.dll")] 
        public static extern int EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE1 devMode); 
        [DllImport("user32.dll")] 
        public static extern int ChangeDisplaySettings(ref DEVMODE1 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 class PrmaryScreenOrientation
    { 
        static public string ChangeOrientation() 
        { 

            DEVMODE1 dm = GetDevMode1(); 

            if (0 != User_32.EnumDisplaySettings(null, User_32.ENUM_CURRENT_SETTINGS, ref dm)) 
            { 
                dm.dmDisplayOrientation = DMDO_90
                dm.dmPelsWidth = 1200; 
                dm.dmPelsHeight = 1920; 

                int iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_TEST); 

                if (iRet == User_32.DISP_CHANGE_FAILED) 
                { 
                    return "Unable To Process Your Request. Sorry For This Inconvenience."; 
                } 
                else 
                { 
                    iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_UPDATEREGISTRY); 
                    switch (iRet) 
                    { 
                        case User_32.DISP_CHANGE_SUCCESSFUL: 
                            { 
                                return "Success"; 
                            } 
                        case User_32.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"; 
                            } 
                    } 

                } 


            } 
            else 
            { 
                return "Failed To Change."; 
            } 
        } 

        private static DEVMODE1 GetDevMode1() 
        { 
            DEVMODE1 dm = new DEVMODE1(); 
            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.PrmaryScreenOrientation]::ChangeOrientation() 
} 

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