public static void SwapMonitors(Monitor monitor0, Monitor monitor1)
{
Monitor primary = monitor0.IsPrimary ? monitor0 : monitor1;
Monitor secondary = monitor0.IsPrimary ? monitor1 : monitor0;
Win32.DEVMODE primarySettings = primary.GetCurrentDisplaySettingsStructure();
Win32.DEVMODE secondarySettings = secondary.GetCurrentDisplaySettingsStructure();
const uint dwFlags = Win32.CDS_UPDATEREGISTRY | Win32.CDS_NORESET;
if (PreferenceSettings.PrimaryMonitor == PreferenceSettings.PrimaryMonitorEnum.LeftSide)
{
primarySettings.dmPositionX = secondary.CurrentDisplaySettings.dmPelsWidth;
secondarySettings.dmPositionX = 0;
Win32.ChangeDisplaySettingsEx(primary.Device.DeviceName, ref primarySettings, (IntPtr)null,
dwFlags, (IntPtr)null);
Win32.ChangeDisplaySettingsEx(secondary.Device.DeviceName, ref secondarySettings, (IntPtr)null,
dwFlags | Win32.CDS_SET_PRIMARY, (IntPtr)null);
}
else
{
primarySettings.dmPositionX = -primary.CurrentDisplaySettings.dmPelsWidth;
secondarySettings.dmPositionX = 0;
Win32.ChangeDisplaySettingsEx(secondary.Device.DeviceName, ref secondarySettings, (IntPtr)null,
dwFlags, (IntPtr)null);
Win32.ChangeDisplaySettingsEx(primary.Device.DeviceName, ref primarySettings, (IntPtr)null,
dwFlags | Win32.CDS_SET_PRIMARY, (IntPtr)null);
}
Win32.ChangeDisplaySettingsEx(null, null, (IntPtr)null, 0, (IntPtr)null);
}
public Monitor(Win32.DISPLAY_DEVICE device, Win32.DEVMODE currentDisplaySettings, List <Win32.DEVMODE> availableDisplaySettings)
{
Device = device;
AvailableDisplaySettings = availableDisplaySettings;
CurrentDisplaySettings = currentDisplaySettings;
IsPrimary = CurrentDisplaySettings.dmPositionX == 0 && CurrentDisplaySettings.dmPositionY == 0;
}
public Win32.DEVMODE GetCurrentDisplaySettingsStructure()
{
var displaySettings = new Win32.DEVMODE();
displaySettings.dmSize = (short) Marshal.SizeOf(displaySettings);
//displaySettings.dmPelsWidth = CurrentDisplaySettings.dmPelsWidth;
//displaySettings.dmPelsHeight = CurrentDisplaySettings.dmPelsHeight;
//displaySettings.dmDisplayFlags = CurrentDisplaySettings.dmDisplayFlags;
//displaySettings.dmDisplayFrequency = CurrentDisplaySettings.dmDisplayFrequency;
displaySettings.dmPositionX = CurrentDisplaySettings.dmPositionX;
displaySettings.dmPositionY = CurrentDisplaySettings.dmPositionY;
displaySettings.dmFields = (int)Win32.DM_POSITION;
return displaySettings;
}
public Win32.DEVMODE GetCurrentDisplaySettingsStructure()
{
var displaySettings = new Win32.DEVMODE();
displaySettings.dmSize = (short)Marshal.SizeOf(displaySettings);
//displaySettings.dmPelsWidth = CurrentDisplaySettings.dmPelsWidth;
//displaySettings.dmPelsHeight = CurrentDisplaySettings.dmPelsHeight;
//displaySettings.dmDisplayFlags = CurrentDisplaySettings.dmDisplayFlags;
//displaySettings.dmDisplayFrequency = CurrentDisplaySettings.dmDisplayFrequency;
displaySettings.dmPositionX = CurrentDisplaySettings.dmPositionX;
displaySettings.dmPositionY = CurrentDisplaySettings.dmPositionY;
displaySettings.dmFields = (int)Win32.DM_POSITION;
return(displaySettings);
}
private static Win32.DEVMODE EnumerateCurrentDisplaySettings(string deviceName)
{
Win32.DEVMODE deviceMode = new Win32.DEVMODE();
deviceMode.dmSize = (short)Marshal.SizeOf(deviceMode);
bool success = Win32.EnumDisplaySettingsEx(deviceName, Win32.ENUM_CURRENT_SETTINGS, ref deviceMode, 0);
if (!success)
{
throw new Exception("Unable to retrieve the current display settings.");
}
return(deviceMode);
}
private void DisplayDebugInfo()
{
StringBuilder debug = new StringBuilder();
foreach (Display.Monitor monitor in _Monitors)
{
Win32.DISPLAY_DEVICE device = monitor.Device;
debug.AppendFormat("DeviceName: {0}{1}", device.DeviceName, Environment.NewLine);
debug.AppendFormat("DeviceString: {0}{1}", device.DeviceString, Environment.NewLine);
debug.AppendFormat("DeviceString: {0}{1}", device.StateFlags, Environment.NewLine);
debug.AppendFormat("DeviceID: {0}{1}", device.DeviceID, Environment.NewLine);
debug.AppendFormat("DeviceKey: {0}{1}", device.DeviceKey, Environment.NewLine);
Win32.DEVMODE currMode = monitor.CurrentDisplaySettings;
debug.AppendFormat("Resolution: {0}x{1}x{2}{3}", currMode.dmPelsWidth, currMode.dmPelsHeight,
currMode.dmBitsPerPel, Environment.NewLine);
debug.AppendFormat("Refresh Rate: {0}hz{1}", currMode.dmDisplayFrequency, Environment.NewLine);
debug.AppendFormat("Position:{0}", Environment.NewLine);
debug.AppendFormat(" X: {0}{1}", currMode.dmPositionX, Environment.NewLine);
debug.AppendFormat(" Y: {0}{1}", currMode.dmPositionY, Environment.NewLine);
debug.AppendFormat("Available Modes: {0}", Environment.NewLine);
foreach (Win32.DEVMODE mode in monitor.AvailableDisplaySettings)
{
Win32.DEVMODE curr = monitor.CurrentDisplaySettings;
bool selected = false;
if (mode.dmPelsWidth == curr.dmPelsWidth &&
mode.dmPelsHeight == curr.dmPelsHeight &&
mode.dmPelsWidth == curr.dmPelsWidth &&
mode.dmBitsPerPel == curr.dmBitsPerPel &&
mode.dmDisplayFrequency == curr.dmDisplayFrequency)
{
selected = true;
}
debug.AppendFormat(" {0}x{1}x{2} {3}hz {4}:{5} {6}{7}", mode.dmPelsWidth,
mode.dmPelsHeight, mode.dmBitsPerPel, mode.dmDisplayFrequency, mode.dmPositionX,
mode.dmPositionY, selected ? "<--" : "", Environment.NewLine);
}
debug.Append(Environment.NewLine);
}
DebugText.Text = debug.ToString();
}
private static List <Win32.DEVMODE> EnumerateAllDisplaySettings(string deviceName)
{
var displaySettings = new List <Win32.DEVMODE>();
for (uint i = 0; ; i++)
{
Win32.DEVMODE deviceMode = new Win32.DEVMODE();
deviceMode.dmSize = (short)Marshal.SizeOf(deviceMode);
bool success = Win32.EnumDisplaySettingsEx(deviceName, i, ref deviceMode, 0);
if (!success)
{
break;
}
displaySettings.Add(deviceMode);
}
return(displaySettings);
}
private static Win32.DEVMODE EnumerateCurrentDisplaySettings(string deviceName)
{
Win32.DEVMODE deviceMode = new Win32.DEVMODE();
deviceMode.dmSize = (short) Marshal.SizeOf(deviceMode);
bool success = Win32.EnumDisplaySettingsEx(deviceName, Win32.ENUM_CURRENT_SETTINGS, ref deviceMode, 0);
if (!success) throw new Exception("Unable to retrieve the current display settings.");
return deviceMode;
}
private static List<Win32.DEVMODE> EnumerateAllDisplaySettings(string deviceName)
{
var displaySettings = new List<Win32.DEVMODE>();
for (uint i = 0; ; i++)
{
Win32.DEVMODE deviceMode = new Win32.DEVMODE();
deviceMode.dmSize = (short)Marshal.SizeOf(deviceMode);
bool success = Win32.EnumDisplaySettingsEx(deviceName, i, ref deviceMode, 0);
if (!success) break;
displaySettings.Add(deviceMode);
}
return displaySettings;
}
