public static Display_Device CreateWithDefaults()
{
var dd = new Display_Device();
dd.Size = Marshal.SizeOf(dd);
return(dd);
}
static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref Display_Device lpDisplayDevice, uint dwFlags);
public static List <SystemDisplay> GetAllDisplays()
{
List <SystemDisplay> allDisplays = new List <SystemDisplay>();
IntPtr hMainWindowMonitor = IntPtr.Zero;
IntPtr mainWindowHandle = IntPtr.Zero;
EWFDebugging.LogLine("Getting all displays.", 0, 4);
try
{
mainWindowHandle = GetProcessMainWindow();
if (mainWindowHandle != IntPtr.Zero)
{
var mainWindowMonitorInfoEx = MonitorInfoEx.CreateWithDefaults();
hMainWindowMonitor = MonitorFromWindow(mainWindowHandle, MONITOR_DEFAULTTONEAREST);
LogWin32Error("Error finding main window monitor");
if (hMainWindowMonitor != IntPtr.Zero)
{
GetMonitorInfo(hMainWindowMonitor, ref mainWindowMonitorInfoEx);
LogWin32Error("Error getting main window monitor info");
}
}
else
{
EWFDebugging.LogError("Could not find the process main window handle.");
}
}
catch (Exception e)
{
string err = "Error finding the main window monitor. " + e.ToString();
Debug.LogError(err);
EWFDebugging.LogError(err);
}
var deviceDisplayMonitorCount = new Dictionary <string, uint>();
EnumDisplayMonitors(IntPtr.Zero, IntPtr.Zero,
delegate(IntPtr hMonitor, IntPtr hdcMonitor, ref RectStruct lprcMonitor, IntPtr dwData)
{
try
{
//Get the monitor info
var monitorInfoEx = MonitorInfoEx.CreateWithDefaults();
GetMonitorInfo(hMonitor, ref monitorInfoEx);
LogWin32Error();
//Get the associated display device
bool mirroringDriver = false;
bool attachedToDesktop = false;
string deviceName = monitorInfoEx.DeviceName;
if (!deviceDisplayMonitorCount.ContainsKey(deviceName))
{
deviceDisplayMonitorCount.Add(deviceName, 0);
}
deviceDisplayMonitorCount[deviceName] += 1;
var displayDevice = Display_Device.CreateWithDefaults();
int displayMonitor = 0;
for (uint id = 0; EnumDisplayDevices(deviceName, id, ref displayDevice, 0); id++)
{
attachedToDesktop = ((displayDevice.StateFlags & DisplayDeviceStateFlags.AttachedToDesktop) == DisplayDeviceStateFlags.AttachedToDesktop);
if (attachedToDesktop)
{
displayMonitor++;
if (displayMonitor == deviceDisplayMonitorCount[deviceName])
{
mirroringDriver = ((displayDevice.StateFlags & DisplayDeviceStateFlags.MirroringDriver) == DisplayDeviceStateFlags.MirroringDriver);
break; //Found the display device which matches the monitor
}
}
displayDevice.Size = Marshal.SizeOf(displayDevice);
}
//Skip the monitor if it's a pseudo monitor
if (mirroringDriver)
{
return(true);
}
//Store the monitor info in a SystemDisplay object
var display = new SystemDisplay();
display.Name = displayDevice.DeviceString;
display.AttachedToDesktop = attachedToDesktop; //Should always be true within EnumDisplayMonitors
display.IsPrimary = monitorInfoEx.Flags == (uint)1;
display.HasMainWindow = (hMonitor == hMainWindowMonitor);
display.Bounds = RectFromRectStruct(lprcMonitor);
display.WorkArea = RectFromRectStruct(monitorInfoEx.WorkAreaBounds);
var devMode = new DEVMODE();
EnumDisplaySettings(monitorInfoEx.DeviceName, ENUM_CURRENT_SETTINGS, ref devMode);
display.PixelWidth = devMode.dmPelsWidth;
display.PixelHeight = devMode.dmPelsHeight;
//Add the SystemDisplay to allDisplays
allDisplays.Add(display);
}
catch (Exception e)
{
Debug.LogException(e);
EWFDebugging.LogError(e.ToString());
}
LogWin32Error();
return(true); //Continue the enumeration
}, IntPtr.Zero);
LogWin32Error();
//Calculate physical bounds
foreach (var display in allDisplays)
{
Rect physicalBounds = display.Bounds;
physicalBounds.width = display.PixelWidth;
physicalBounds.height = display.PixelHeight;
Vector2 displayTopLeft = new Vector2(display.Bounds.xMin, display.Bounds.yMin);
var displayTopLeftPhysical = GetPhysicalPoint(mainWindowHandle, displayTopLeft);
physicalBounds.x = displayTopLeftPhysical.x;
physicalBounds.y = displayTopLeftPhysical.y;
display.PhysicalBounds = physicalBounds;
}
return(allDisplays);
}
