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ryujinx-final/Ryujinx.Common/System/ForceDpiAware.cs

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using Ryujinx.Common.Logging;
using System;
using System.Drawing;
using System.Runtime.InteropServices;
namespace Ryujinx.Common.System
{
public static class ForceDpiAware
{
[DllImport("user32.dll")]
private static extern bool SetProcessDPIAware();
private static readonly double _standardDpiScale = 96.0;
private static readonly double _maxScaleFactor = 1.25;
/// <summary>
/// Marks the application as DPI-Aware when running on the Windows operating system.
/// </summary>
public static void Windows()
{
// Make process DPI aware for proper window sizing on high-res screens.
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && Environment.OSVersion.Version.Major >= 6)
{
SetProcessDPIAware();
}
}
public static double GetWindowScaleFactor()
{
double userDpiScale;
try
{
userDpiScale = Graphics.FromHwnd(IntPtr.Zero).DpiX;
}
catch (Exception e)
{
Logger.Warning?.Print(LogClass.Application, $"Couldn't determine monitor DPI: {e.Message}");
userDpiScale = 96.0;
}
return Math.Min(userDpiScale / _standardDpiScale, _maxScaleFactor);
}
}
}