獲取分辨率縮放比例：

public const int HORZRES = 8;public const int VERTRES = 10;public const int LOGPIXELSX = 88;public const int LOGPIXELSY = 90;public const int DESKTOPVERTRES = 117;public const int DESKTOPHORZRES = 118;[DllImport("user32.dll")]public static extern IntPtr GetDC(IntPtr ptr);[DllImport("gdi32.dll")]public static extern int GetDeviceCaps(IntPtr hdc, // handle to DCint nIndex // index of capability);[DllImport("user32.dll", EntryPoint = "ReleaseDC")]public static extern IntPtr ReleaseDC(IntPtr hWnd, IntPtr hDc);[DllImport("user32.dll")]public static extern IntPtr GetDesktopWindow(); public static float GetSreenScale(){var hdc = Win32.GetDC(Win32.GetDesktopWindow());int nWidth = Win32.GetDeviceCaps(hdc, Win32.DESKTOPHORZRES);Win32.ReleaseDC(IntPtr.Zero, hdc);float f_Scale = (float)nWidth / (float)Screen.PrimaryScreen.Bounds.Width;return 1 / f_Scale;}

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