private static SizeF CalculateScalingFactor()
{
const int LOGPIXELSX = 88;
const int LOGPIXELSY = 90;
IntPtr primaryMonitorDC = DllImports.GetDC(IntPtr.Zero);
try
{
int deviceDpiX = DllImports.GetDeviceCaps(primaryMonitorDC, LOGPIXELSX);
int deviceDpiY = DllImports.GetDeviceCaps(primaryMonitorDC, LOGPIXELSY);
double scalingFactorX = deviceDpiX / LogicalDpi;
double scalingFactorY = deviceDpiY / LogicalDpi;
return(new SizeF((float)scalingFactorX, (float)scalingFactorY));
}
finally
{
DllImports.ReleaseDC(IntPtr.Zero, primaryMonitorDC);
}
}
