mirror of
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41 lines
1.5 KiB
C#
41 lines
1.5 KiB
C#
// Copyright © 2020 Paddy Xu
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//
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// This file is part of QuickLook program.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System.Reflection;
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using System.Windows.Media.Imaging;
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using QuickLook.Common.Helpers;
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namespace QuickLook.Plugin.ImageViewer
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{
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internal class Helper
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{
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public static void DpiHack(BitmapSource img)
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{
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// a dirty hack... but is the fastest
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var newDpiX = (double) DpiHelper.DefaultDpi * DpiHelper.GetCurrentScaleFactor().Horizontal;
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var newDpiY = (double) DpiHelper.DefaultDpi * DpiHelper.GetCurrentScaleFactor().Vertical;
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var dpiX = img.GetType().GetField("_dpiX",
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BindingFlags.NonPublic | BindingFlags.Instance);
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var dpiY = img.GetType().GetField("_dpiY",
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BindingFlags.NonPublic | BindingFlags.Instance);
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dpiX?.SetValue(img, newDpiX);
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dpiY?.SetValue(img, newDpiY);
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}
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}
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} |