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@ -0,0 +1,382 @@ |
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namespace RadeonResetBugFixService.ThirdParty.MonitorChanger |
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{ |
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// Code taken from https://github.com/Grunge/setDisplayRes |
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using System; |
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using System.Collections.Generic; |
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using System.Runtime.InteropServices; |
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// Encapsulates access to the PInvoke functions |
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public class Display |
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{ |
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public static List<DISPLAY_DEVICE> GetDisplayList(bool RetrieveMonitorname = false) |
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{ |
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//todo: EDD_GET_DEVICE_INTERFACE_NAME |
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//const int EDD_GET_DEVICE_INTERFACE_NAME = 0x1; |
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List<DISPLAY_DEVICE> displays = new List<DISPLAY_DEVICE>(); |
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DISPLAY_DEVICE d = new DISPLAY_DEVICE(); |
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d.cb = Marshal.SizeOf(d); |
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try |
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{ |
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for (uint id = 0; NativeMethods.EnumDisplayDevices(null, id, ref d, 0); id++) |
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{ |
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if (d.StateFlags.HasFlag(DisplayDeviceStateFlags.AttachedToDesktop)) |
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{ |
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//call again to get the monitor name (not only the graka name). |
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DISPLAY_DEVICE devWithName = new DISPLAY_DEVICE(); |
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devWithName.cb = Marshal.SizeOf(devWithName); |
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NativeMethods.EnumDisplayDevices(d.DeviceName, 0, ref devWithName, 0); |
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//overwrite device string and id, keep the rest! |
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d.DeviceString = devWithName.DeviceString; |
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d.DeviceID = devWithName.DeviceID; |
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displays.Add(d); |
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}//if is display |
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}//for |
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} |
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catch (Exception ex) |
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{ |
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Console.WriteLine(String.Format("{0}", ex.ToString())); |
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} |
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return displays; |
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} |
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// Return a list of all possible display types for this computer |
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public static List<DevMode> GetDisplaySettings(string strDevName) |
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{ |
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List<DevMode> modes = new List<DevMode>(); |
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DevMode devmode = DevMode; |
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int counter = 0; |
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int returnValue = 1; |
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// A return value of zero indicates that no more settings are available |
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while (returnValue != 0) |
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{ |
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returnValue = GetSettings(strDevName, ref devmode, counter++); |
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modes.Add(devmode); |
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} |
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return modes; |
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} |
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// Return the current display setting |
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public int GetCurrentSettings(string strDevName, ref DevMode devmode) |
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{ |
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return GetSettings(strDevName, ref devmode, NativeMethods.ENUM_CURRENT_SETTINGS); |
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} |
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//todo: CDS_UPDATEREGISTRY |
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// Change the settings to the values of the DEVMODE passed |
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public static string ChangeSettings(DISPLAY_DEVICE a_dev, DevMode devmode, bool bSetPrimary) |
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{ |
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string errorMessage = ""; |
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ChangeDisplaySettingsFlags flags = new ChangeDisplaySettingsFlags(); |
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flags = ChangeDisplaySettingsFlags.CDS_UPDATEREGISTRY | ChangeDisplaySettingsFlags.CDS_GLOBAL; |
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ReturnCodes iRet = NativeMethods.ChangeDisplaySettingsEx(a_dev.DeviceName, ref devmode, IntPtr.Zero, flags, IntPtr.Zero); |
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//same again, but with PRIMARY |
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if (bSetPrimary && iRet == ReturnCodes.DISP_CHANGE_SUCCESSFUL) |
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{ |
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SetAsPrimaryMonitor(a_dev); |
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}//if primary |
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switch (iRet) |
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{ |
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case ReturnCodes.DISP_CHANGE_SUCCESSFUL: |
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break; |
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case ReturnCodes.DISP_CHANGE_RESTART: |
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errorMessage = "Please restart your system"; |
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break; |
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case ReturnCodes.DISP_CHANGE_FAILED: |
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errorMessage = "ChangeDisplaySettigns API failed"; |
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break; |
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case ReturnCodes.DISP_CHANGE_BADDUALVIEW: |
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errorMessage = "The settings change was unsuccessful because system is DualView capable."; |
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break; |
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case ReturnCodes.DISP_CHANGE_BADFLAGS: |
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errorMessage = "An invalid set of flags was passed in."; |
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break; |
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case ReturnCodes.DISP_CHANGE_BADPARAM: |
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errorMessage = "An invalid parameter was passed in. This can include an invalid flag or combination of flags."; |
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break; |
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case ReturnCodes.DISP_CHANGE_NOTUPDATED: |
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errorMessage = "Unable to write settings to the registry."; |
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break; |
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default: |
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errorMessage = "Unknown return value from ChangeDisplaySettings API"; |
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break; |
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} |
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return errorMessage; |
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} |
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public static void SetAsPrimaryMonitor(DISPLAY_DEVICE a_dev) |
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{ |
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var deviceMode = new DevMode(); |
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NativeMethods.EnumDisplaySettings(a_dev.DeviceName, -1, ref deviceMode); |
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var offsetx = deviceMode.dmPositionX; |
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var offsety = deviceMode.dmPositionY; |
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deviceMode.dmPositionX = 0; |
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deviceMode.dmPositionY = 0; |
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NativeMethods.ChangeDisplaySettingsEx( |
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a_dev.DeviceName, |
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ref deviceMode, |
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(IntPtr)null, |
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(ChangeDisplaySettingsFlags.CDS_SET_PRIMARY | ChangeDisplaySettingsFlags.CDS_UPDATEREGISTRY | ChangeDisplaySettingsFlags.CDS_NORESET), |
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IntPtr.Zero); |
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var device = new DISPLAY_DEVICE(); |
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device.cb = Marshal.SizeOf(device); |
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// Update other devices |
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for (uint otherid = 0; NativeMethods.EnumDisplayDevices(null, otherid, ref device, 0); otherid++) |
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{ |
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if (device.StateFlags.HasFlag(DisplayDeviceStateFlags.AttachedToDesktop) && device.DeviceID != a_dev.DeviceID) |
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{ |
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device.cb = Marshal.SizeOf(device); |
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var otherDeviceMode = new DevMode(); |
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NativeMethods.EnumDisplaySettings(device.DeviceName, -1, ref otherDeviceMode); |
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otherDeviceMode.dmPositionX -= offsetx; |
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otherDeviceMode.dmPositionY -= offsety; |
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NativeMethods.ChangeDisplaySettingsEx( |
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device.DeviceName, |
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ref otherDeviceMode, |
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(IntPtr)null, |
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(ChangeDisplaySettingsFlags.CDS_UPDATEREGISTRY | ChangeDisplaySettingsFlags.CDS_NORESET), |
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IntPtr.Zero); |
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} |
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device.cb = Marshal.SizeOf(device); |
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} |
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// Apply settings |
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NativeMethods.ChangeDisplaySettingsEx(null, IntPtr.Zero, (IntPtr)null, ChangeDisplaySettingsFlags.CDS_NONE, (IntPtr)null); |
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}//set as primary() |
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// Return a properly configured DEVMODE |
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public static DevMode DevMode |
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{ |
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get |
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{ |
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DevMode devmode = new DevMode(); |
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devmode.dmDeviceName = new String(new char[32]); |
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devmode.dmFormName = new String(new char[32]); |
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devmode.dmSize = (short)Marshal.SizeOf(devmode); |
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return devmode; |
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} |
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} |
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// call the external function inthe Win32 API |
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private static int GetSettings(string strDevName, ref DevMode devmode, int iModeNum) |
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{ |
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// helper to wrap EnumDisplaySettings Win32 API |
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return NativeMethods.EnumDisplaySettings(strDevName, iModeNum, ref devmode); |
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} |
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} |
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// Encapsulate the magic numbers for the return value in an enumeration |
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public enum ReturnCodes : int |
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{ |
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DISP_CHANGE_SUCCESSFUL = 0, |
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DISP_CHANGE_BADDUALVIEW = -6, |
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DISP_CHANGE_BADFLAGS = -4, |
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DISP_CHANGE_BADMODE = -2, |
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DISP_CHANGE_BADPARAM = -5, |
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DISP_CHANGE_FAILED = -1, |
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DISP_CHANGE_NOTUPDATED = -3, |
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DISP_CHANGE_RESTART = 1 |
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} |
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// To see how the DEVMODE struct was translated from the unmanaged to the managed see the Task 2 Declarations section |
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// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_8nle.asp |
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] |
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public struct DevMode |
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{ |
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// The MarshallAs attribute is covered in the Background section of the article |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] |
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public string dmDeviceName; |
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public short dmSpecVersion; |
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public short dmDriverVersion; |
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public short dmSize; |
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public short dmDriverExtra; |
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public int dmFields; |
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public int dmPositionX; |
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public int dmPositionY; |
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public int dmDisplayOrientation; |
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public int dmDisplayFixedOutput; |
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public short dmColor; |
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public short dmDuplex; |
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public short dmYResolution; |
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public short dmTTOption; |
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public short dmCollate; |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] |
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public string dmFormName; |
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public short dmLogPixels; |
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public short dmBitsPerPel; |
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public int dmPelsWidth; |
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public int dmPelsHeight; |
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public int dmDisplayFlags; |
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public int dmDisplayFrequency; |
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public int dmICMMethod; |
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public int dmICMIntent; |
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public int dmMediaType; |
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public int dmDitherType; |
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public int dmReserved1; |
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public int dmReserved2; |
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public int dmPanningWidth; |
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public int dmPanningHeight; |
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public override string ToString() |
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{ |
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return dmPelsWidth.ToString() + " x " + dmPelsHeight.ToString(); |
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} |
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public string[] GetInfoArray() |
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{ |
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string[] items = new string[5]; |
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items[0] = dmDeviceName; |
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items[1] = dmPelsWidth.ToString(); |
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items[2] = dmPelsHeight.ToString(); |
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items[3] = dmDisplayFrequency.ToString(); |
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items[4] = dmBitsPerPel.ToString(); |
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return items; |
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} |
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} |
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//Display Listening |
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] |
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public struct DISPLAY_DEVICE |
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{ |
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[MarshalAs(UnmanagedType.U4)] |
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public int cb; |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] |
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public string DeviceName; |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] |
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public string DeviceString; |
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[MarshalAs(UnmanagedType.U4)] |
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public DisplayDeviceStateFlags StateFlags; |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] |
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public string DeviceID; |
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] |
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public string DeviceKey; |
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} |
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[Flags()] |
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public enum DEVMODE_Flags : int |
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{ |
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DM_BITSPERPEL = 0x40000, |
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DM_DISPLAYFLAGS = 0x200000, |
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DM_DISPLAYFREQUENCY = 0x400000, |
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DM_PELSHEIGHT = 0x100000, |
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DM_PELSWIDTH = 0x80000, |
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DM_POSITION = 0x20 |
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} |
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[Flags()] |
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public enum DisplayDeviceStateFlags : int |
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{ |
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/// <summary>The device is part of the desktop.</summary> |
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AttachedToDesktop = 0x1, |
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MultiDriver = 0x2, |
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/// <summary>The device is part of the desktop.</summary> |
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PrimaryDevice = 0x4, |
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/// <summary>Represents a pseudo device used to mirror application drawing for remoting or other purposes.</summary> |
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MirroringDriver = 0x8, |
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/// <summary>The device is VGA compatible.</summary> |
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VGACompatible = 0x10, |
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/// <summary>The device is removable; it cannot be the primary display.</summary> |
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Removable = 0x20, |
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/// <summary>The device has more display modes than its output devices support.</summary> |
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ModesPruned = 0x8000000, |
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Remote = 0x4000000, |
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Disconnect = 0x2000000 |
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} |
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[Flags()] |
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public enum ChangeDisplaySettingsFlags : uint |
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{ |
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CDS_NONE = 0, |
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CDS_UPDATEREGISTRY = 0x00000001, |
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CDS_TEST = 0x00000002, |
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CDS_FULLSCREEN = 0x00000004, |
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CDS_GLOBAL = 0x00000008, |
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CDS_SET_PRIMARY = 0x00000010, |
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CDS_VIDEOPARAMETERS = 0x00000020, |
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CDS_ENABLE_UNSAFE_MODES = 0x00000100, |
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CDS_DISABLE_UNSAFE_MODES = 0x00000200, |
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CDS_RESET = 0x40000000, |
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CDS_RESET_EX = 0x20000000, |
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CDS_NORESET = 0x10000000 |
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} |
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[Flags()] |
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public enum ChangeDisplayConfigFlags : uint |
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{ |
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SDC_TOPOLOGY_INTERNAL = 0x00000001, |
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SDC_TOPOLOGY_CLONE = 0x00000002, |
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SDC_TOPOLOGY_EXTEND = 0x00000004, |
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SDC_TOPOLOGY_EXTERNAL = 0x00000008, |
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SDC_APPLY = 0x00000080, |
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} |
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class NativeMethods |
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{ |
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// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/devcons_84oj.asp |
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[DllImport("user32.dll", CharSet = CharSet.Ansi)] |
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public static extern int EnumDisplaySettings(string lpszDeviceName, int iModeNum, ref DevMode lpDevMode); |
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// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/devcons_7gz7.asp |
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[DllImport("user32.dll", CharSet = CharSet.Ansi)] //CallingConvention = CallingConvention.Cdecl |
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public static extern ReturnCodes ChangeDisplaySettingsEx(string lpszDeviceName, ref DevMode lpDevMode, IntPtr hwnd, ChangeDisplaySettingsFlags dwFlags, IntPtr lParam); |
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[DllImport("user32.dll")] |
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public static extern int ChangeDisplaySettingsEx(int lpszDeviceName, int lpDevMode, int hwnd, int dwFlags, int lParam); |
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[DllImport("user32.dll")] |
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// A signature for ChangeDisplaySettingsEx with a DEVMODE struct as the second parameter won't allow you to pass in IntPtr.Zero, so create an overload |
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public static extern int ChangeDisplaySettingsEx(string lpszDeviceName, IntPtr lpDevMode, IntPtr hwnd, ChangeDisplaySettingsFlags dwflags, IntPtr lParam); |
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[DllImport("user32.dll", CharSet = CharSet.Ansi)] |
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public static extern ReturnCodes ChangeDisplaySettings(ref DevMode lpDevMode, int dwFlags); |
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[DllImport("user32.dll")] |
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public static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags); |
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[DllImport("user32.dll", CharSet = CharSet.Unicode)] |
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public static extern long SetDisplayConfig(uint numPathArrayElements, IntPtr pathArray, uint numModeArrayElements, IntPtr modeArray, ChangeDisplayConfigFlags flags); |
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public const int ENUM_CURRENT_SETTINGS = -1; |
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} |
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} |