private void UpdateDPIText()
{
var hMonitor = PerMonitorDPIHelper.GetMonitorFromWindow(this);
MonitorInfoEx monitorInfo = new MonitorInfoEx();
monitorInfo.Init();
GetMonitorInfo(hMonitor, ref monitorInfo);
var monitorRect = monitorInfo.Monitor;
DPI.Text = "Window Information" +
"\n\tSystem DPI = " + PerMonitorDPIHelper.GetSystemDPI() +
"\n\tWPF Rendering DPI = " + this.WpfDPI +
"\n\tMonitor DPI = " + this.CurrentDPI +
string.Format("\n\tMonitor Dimensions = X:{0} Y:{1} Width:{2} Height: {3}", monitorRect.Left, monitorRect.Top, monitorRect.Right - monitorRect.Left, monitorRect.Bottom - monitorRect.Top) +
"\n\tWindow Size in Physical Pixels = " + (this.ActualWidth * this.WpfDPI / 96.0) + " x " + (this.ActualHeight * this.WpfDPI / 96.0);
}
static extern bool GetMonitorInfo(IntPtr hMonitor, ref MonitorInfoEx lpmi);
