30 lines
974 B
C#
30 lines
974 B
C#
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using System;
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using System.Globalization;
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using System.Linq;
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using System.Windows;
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using System.Windows.Media;
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namespace PCL.Core.App.Essentials;
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public static class StartupValidation
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{
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/// <summary>
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/// 确保 WPF 字体渲染环境正常（修复缺失 %windir% 环境变量导致的字体渲染异常 #3555）
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/// </summary>
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public static void EnsureWpfFont()
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{
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try
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{
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_ = new FormattedText("", CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
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Fonts.SystemTypefaces.First(), 96d, Brushes.Black, 96d);
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}
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catch (UriFormatException)
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{
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Environment.SetEnvironmentVariable("windir", Environment.GetEnvironmentVariable("SystemRoot"),
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EnvironmentVariableTarget.User);
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_ = new FormattedText("", CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
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Fonts.SystemTypefaces.First(), 96d, Brushes.Black, 96d);
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}
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}
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}
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