/// <summary>
/// Create a new instance.
/// </summary>
private Screen(IntPtr monitorHandle)
{
var info = new MONITORINFOEX();
User32WindowFunctions.GetMonitorInfo(new HandleRef(null, monitorHandle), info);
Bounds = new Rect(info.rcMonitor.left, info.rcMonitor.top, info.rcMonitor.width, info.rcMonitor.height);
WorkingArea = new Rect(info.rcWork.left, info.rcWork.top, info.rcWork.width, info.rcWork.height);
Primary = (info.dwFlags & MONITORINFOEX.FLAGS_PRIMARY) != 0;
DeviceName = new string(info.szDevice).TrimEnd((char)0);
var workingLocation = new Point(WorkingArea.Left - Bounds.Left, WorkingArea.Y - Bounds.Y);
ScreenRelativeWorkingArea = new Rect(workingLocation, WorkingArea.Size);
}
/// <summary>
/// Get a list of all screens attached to the device.
/// </summary>
/// <returns></returns>
public static Screen[] GetAllScreens()
{
var screens = new List<Screen>();
User32WindowFunctions.EnumDisplayMonitorsCallback callback =
(monitor, hdc, lprcMonitor, lparam) =>
{
screens.Add(new Screen(monitor));
return true;
};
User32WindowFunctions.EnumDisplayMonitors(User32WindowFunctions.NullHandleRef, null, callback, IntPtr.Zero);
return screens.ToArray();
}
/// <summary>
/// Get the screen containing most of the given rectangle.
/// </summary>
public static Screen FromRect(Rect rect)
{
var nativeRect = new RECT((int)rect.Left, (int)rect.Top, (int)rect.Right, (int)rect.Bottom);
return new Screen(User32WindowFunctions.MonitorFromRect(ref nativeRect, MONITOR_DEFAULTTO.NEAREST));
}
/// <summary>
/// Get the screen containing the given point.
/// </summary>
public static Screen FromPoint(Point point)
{
var nativePoint = new POINTSTRUCT((int)point.X, (int)point.Y);
return new Screen(User32WindowFunctions.MonitorFromPoint(nativePoint, MONITOR_DEFAULTTO.NEAREST));
}
/// <summary>
/// Get the screen which has most of the window referred to by <paramref name="hwnd"/> on
/// it.
/// </summary>
public static Screen FromHWnd(IntPtr hwnd)
{
return new Screen(User32WindowFunctions.MonitorFromWindow(new HandleRef(null, hwnd), MONITOR_DEFAULTTO.NEAREST));
}
/// <summary>
/// Get the screen marked as primary (the one that the taskbar is on)
/// </summary>
public static Screen GetPrimaryScreen()
{
return new Screen(User32WindowFunctions.MonitorFromPoint(new POINTSTRUCT(), MONITOR_DEFAULTTO.PRIMARY));
}
