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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="DPIAwareness.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// Defines the DPIAwareness type.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Utilities
{
using System.Windows;
using System.Windows.Media;
/// <summary>
/// The dpi awareness.
/// </summary>
public class DPIAwareness
{
/// <summary>
/// The dx.
/// </summary>
private static double dx;
/// <summary>
/// The dy.
/// </summary>
private static double dy;
/// <summary>
/// Initializes a new instance of the <see cref="DPIAwareness"/> class.
/// </summary>
public DPIAwareness()
{
var presentationSource = PresentationSource.FromVisual(Application.Current.MainWindow);
if (presentationSource != null && presentationSource.CompositionTarget != null)
{
Matrix m = presentationSource.CompositionTarget.TransformToDevice;
dx = m.M11;
dy = m.M22;
}
}
/// <summary>
/// Gets the dpix.
/// </summary>
public double Dpix
{
get
{
return dx;
}
}
/// <summary>
/// Gets the dpi y.
/// </summary>
public double DpiY
{
get
{
return dy;
}
}
}
}
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