private Screen(IntPtr monitor)
{
var info = new User32.MONITORINFO()
{
cbSize = Marshal.SizeOf <User32.MONITORINFO>()
};
if (User32.GetMonitorInfoW(monitor, ref info))
{
PhysicalDisplayArea = info.rcMonitor.ToRect();
PhysicalWorkingArea = info.rcWork.ToRect();
IsPrimary = (info.dwFlags & User32.MONITORINFOF_PRIMARY) != 0;
}
uint dpix = 96, dpiy = 96;
try {
Shcore.GetDpiForMonitor(monitor, Shcore.MONITOR_DPI_TYPE.MDT_EFFECTIVE_DPI, ref dpix, ref dpiy);
}
catch (DllNotFoundException) {
}
catch (EntryPointNotFoundException) {
}
DpiX = (int)dpix;
DpiY = (int)dpiy;
}
internal static int GetScreenDpi(Screen currentScreen)
{
if (IsPerMonitorV2Awareness)
{
var hMonitor = User32.MonitorFromPoint(new POINT(currentScreen.Bounds.X + currentScreen.Bounds.Width / 2, currentScreen.Bounds.Y + currentScreen.Bounds.Height / 2), MonitorOptions.MONITOR_DEFAULTTONEAREST);
Shcore.GetDpiForMonitor(hMonitor, DpiType.Effective, out var dpiX, out var dpiY);
return((int)dpiY);
}
return(DeviceDpi);
}
internal static int GetScreenDpiFromPoint(Point point)
{
if (IsPerMonitorV2Awareness)
{
var hMonitor = User32.MonitorFromPoint(new POINT(point), MonitorOptions.MONITOR_DEFAULTTONEAREST);
Shcore.GetDpiForMonitor(hMonitor, DpiType.Effective, out var dpiX, out var dpiY);
return((int)dpiY);
}
return(DeviceDpi);
}
internal static float GetScaleFactorForCurrentWindow(IntPtr handle)
{
if (IsPerMonitorV2Awareness)
{
var hMonitor = User32.MonitorFromWindow(handle, User32.MONITOR_DEFAULTTONEAREST);
Shcore.GetDpiForMonitor(hMonitor, DpiType.Effective, out var dpiX, out var dpiY);
return(dpiX / LOGICAL_DPI);
}
return(DeviceDpi / LOGICAL_DPI);
}
internal static int GetDpiForCurrentWindow(IntPtr handle)
{
if (IsPerMonitorV2Awareness)
{
var hMonitor = User32.MonitorFromWindow(handle, User32.MONITOR_DEFAULTTONEAREST);
Shcore.GetDpiForMonitor(hMonitor, DpiType.Effective, out var dpiX, out var dpiY);
return((int)dpiX);
}
return(DeviceDpi);
}
