static DpiHelper()
{
IntPtr dC = NativeMethodsUltimate.GetDC(IntPtr.Zero);
if (dC != IntPtr.Zero)
{
DpiHelper.DeviceDpiX = (double)NativeMethodsUltimate.GetDeviceCaps(dC, 88);
DpiHelper.DeviceDpiY = (double)NativeMethodsUltimate.GetDeviceCaps(dC, 90);
NativeMethodsUltimate.ReleaseDC(IntPtr.Zero, dC);
}
else
{
DpiHelper.DeviceDpiX = 96.0;
DpiHelper.DeviceDpiY = 96.0;
}
System.Windows.Media.Matrix identity = System.Windows.Media.Matrix.Identity;
System.Windows.Media.Matrix identity2 = System.Windows.Media.Matrix.Identity;
identity.Scale(DpiHelper.DeviceDpiX / 96.0, DpiHelper.DeviceDpiY / 96.0);
identity2.Scale(96.0 / DpiHelper.DeviceDpiX, 96.0 / DpiHelper.DeviceDpiY);
DpiHelper.transformFromDevice = new MatrixTransform(identity2);
DpiHelper.transformFromDevice.Freeze();
DpiHelper.transformToDevice = new MatrixTransform(identity);
DpiHelper.transformToDevice.Freeze();
}
