public static IList <Display> GetDisplays()
{
var list = new List <Display>();
int index = 1;
NativeMethods.EnumDisplayMonitors(IntPtr.Zero, IntPtr.Zero, (IntPtr monitor, IntPtr _, ref NativeRect __, IntPtr ___) =>
{
var monitorInfoEx = MonitorInfoEx.Create();
if (!NativeMethods.GetMonitorInfo(monitor, ref monitorInfoEx))
{
return(true);
}
NativeDpiMethods.GetDpiForMonitor(monitor, MonitorDpiType.EffectiveDpi, out var dpiX, out var dpiY);
var display = new Display
{
Handle = monitor,
Index = index++,
Bounds = (Rectangle)monitorInfoEx.Monitor,
WorkingArea = (Rectangle)monitorInfoEx.WorkArea,
IsPrimary = (monitorInfoEx.Flags & MonitorInfoFlags.Primary) == MonitorInfoFlags.Primary,
DeviceName = monitorInfoEx.DeviceName,
Dpi = new Point((int)dpiX, (int)dpiY),
};
list.Add(display);
return(true);
}, IntPtr.Zero);
/// <summary>
/// Returns the number of Displays using the Win32 functions
/// </summary>
/// <returns>collection of Display Info</returns>
public static IEnumerable <DisplayInfo> AllDisplays()
{
var result = new List <DisplayInfo>();
int index = 1;
EnumDisplayMonitors(IntPtr.Zero, IntPtr.Zero, (IntPtr monitor, IntPtr hdcMonitor, ref NativeRect lprcMonitor, IntPtr data) =>
{
var monitorInfoEx = MonitorInfoEx.Create();
var success = GetMonitorInfo(monitor, ref monitorInfoEx);
if (!success)
{
return(true);
}
var displayInfo = new DisplayInfo
{
Index = index++,
ScreenWidth = Math.Abs(monitorInfoEx.Monitor.Right - monitorInfoEx.Monitor.Left),
ScreenHeight = Math.Abs(monitorInfoEx.Monitor.Bottom - monitorInfoEx.Monitor.Top),
Bounds = monitorInfoEx.Monitor,
WorkingArea = monitorInfoEx.WorkArea,
IsPrimary = (monitorInfoEx.Flags & MonitorInfoFlags.Primary) == MonitorInfoFlags.Primary
};
result.Add(displayInfo);
return(true);
}, IntPtr.Zero);
return(result);
}
public static bool FitInScreen(Window window)
{
var windowInteropHelper = new WindowInteropHelper(window);
IntPtr hMonitor = MonitorFromWindow(windowInteropHelper.Handle, MONITOR_DEFAULTTONEAREST);
if (hMonitor == IntPtr.Zero)
{
return(false);
}
var monitorInfo = MonitorInfoEx.Create();
if (GetMonitorInfo(hMonitor, ref monitorInfo) == false)
{
return(false);
}
DpiScale dpiInfo = VisualTreeHelper.GetDpi(App.Current.MainWindow);
monitorInfo.Monitor.bottom = (int)Math.Floor(monitorInfo.Monitor.right / dpiInfo.DpiScaleX);
monitorInfo.Monitor.bottom = (int)Math.Floor(monitorInfo.Monitor.bottom / dpiInfo.DpiScaleY);
monitorInfo.WorkArea.right = (int)Math.Floor(monitorInfo.WorkArea.right / dpiInfo.DpiScaleX);
monitorInfo.WorkArea.bottom = (int)Math.Floor(monitorInfo.WorkArea.bottom / dpiInfo.DpiScaleY);
int top = (int)window.Top;
if (top < monitorInfo.WorkArea.top)
{
window.Top = monitorInfo.WorkArea.top;
}
int bottom = (int)(window.Top + window.Height);
if (bottom > monitorInfo.WorkArea.bottom)
{
if (window.Height < monitorInfo.WorkArea.bottom)
{
window.Top = monitorInfo.WorkArea.bottom - window.Height;
}
else
{
window.Top = monitorInfo.WorkArea.top;
window.Height = monitorInfo.WorkArea.bottom - monitorInfo.WorkArea.top;
}
}
int left = (int)window.Left;
if (left < monitorInfo.WorkArea.left)
{
window.Left = monitorInfo.WorkArea.left;
}
int right = (int)(window.Left + window.Width);
if (right > monitorInfo.WorkArea.right)
{
if (window.Width < monitorInfo.WorkArea.right)
{
window.Left = monitorInfo.WorkArea.right - window.Width;
}
else
{
window.Left = monitorInfo.WorkArea.left;
window.Width = monitorInfo.WorkArea.right - monitorInfo.WorkArea.left;
}
}
return(true);
}
