private void RecalculateSystemScale()
{
DpiUtilities.GetSystemEffectiveDpi(out _systemDpiX, out _systemDpiY);
SystemScale = DpiUtilities.CalculateScale(_systemDpiX, _systemDpiY, 96, 96);
#if (DEBUG)
System.Diagnostics.Debug.WriteLine("System DPI = " + _systemDpiX.ToString());
#endif
}
private void RecalculateMonitorScale()
{
uint dpiX;
uint dpiY;
DpiUtilities.GetWindowEffectiveDpi(_hwnd, out dpiX, out dpiY);
if (dpiX != lastDpiX && dpiY != lastDpiY)
{
VirtualPixelScale = DpiUtilities.CalculateScale(dpiX, dpiY, 96, 96);
lastDpiX = dpiX;
lastDpiY = dpiY;
}
}
public static void PositionWindowOnScreenWithOffsetIgnoringSystemDPI(Window window, System.Windows.Forms.Screen screen, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment, float hOffset, float vOffset)
{
System.IntPtr monitor = NativeMethods.GetMonitorFromWindow(NativeMethods.GetWindowHwnd(window));
var _screenProps = new ScreenProperties();
_screenProps.GetMonitorsInformation();
var monitorInfo = _screenProps.GetMonitorInformation(monitor);
var workingArea = monitorInfo.rcWork;
var dpiScale = DpiUtilities.CalculateScale((uint)monitorInfo.dpiX, (uint)monitorInfo.dpiY, 96, 96);
double workingLeft = (workingArea.left + hOffset) / dpiScale.X;
double workingWidth = workingArea.width / dpiScale.X;
double workingTop = (workingArea.top + vOffset) / dpiScale.Y;
double workingHeight = workingArea.height / dpiScale.Y;
PositionWindow(window, workingLeft, workingTop, workingWidth, workingHeight, horizontalAlignment, verticalAlignment);
}