NHSE/NHSE.WinForms/Util/InterpolatingPictureBox.cs

using System.Drawing.Drawing2D;
using System.Windows.Forms;

namespace NHSE.WinForms;

public class InterpolatingPictureBox : PictureBox
{
    private readonly InterpolationMode InterpolationMode = InterpolationMode.HighQualityBicubic;

    protected override void OnPaint(PaintEventArgs eventArgs)
    {
        eventArgs.Graphics.InterpolationMode = InterpolationMode;
        base.OnPaint(eventArgs);
    }

    protected override void OnPaintBackground(PaintEventArgs pevent)
    {
        pevent.Graphics.InterpolationMode = InterpolationMode;
        base.OnPaintBackground(pevent);
    }
}