Merge pull request #82 from hoywu/master

尝试优化高DPI下显示质量
jitwxs · May 2, 2022 · 5ff15c1 · 5ff15c1
2 parents 8230be4 + 2f5b037
commit 5ff15c1
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Showing 2 changed files with 41 additions and 3 deletions.
diff --git a/MusicLyricApp/App.config b/MusicLyricApp/App.config
@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
+  </startup>
+  <System.Windows.Forms.ApplicationConfigurationSection>
+    <add key="DpiAwareness" value="PerMonitorV2" />
+  </System.Windows.Forms.ApplicationConfigurationSection>
 </configuration>
diff --git a/MusicLyricApp/MainForm.cs b/MusicLyricApp/MainForm.cs
@@ -6,6 +6,7 @@
 using System.Linq;
 using System.Net;
 using System.Net.Http;
+using System.Reflection;
 using System.Text;
 using System.Threading;
 using System.Windows.Forms;
@@ -68,6 +69,8 @@ public MainForm()
 
             InitializeComponent();
             InitialConfig();
+
+            TrySetHighDPIFont("Segoe UI");
         }
 
         private void InitialConfig()
@@ -101,6 +104,38 @@ private void InitialConfig()
             }
         }
 
+        private void TrySetHighDPIFont(String fontName)
+        {
+            //缩放比例大于100%才更改字体
+            if (DeviceDpi <= 96) return;
+
+            Font font = null;
+            try
+            {
+                font = new Font(fontName, 9F, FontStyle.Regular, GraphicsUnit.Point);
+            }
+            catch (System.Exception) { }
+
+            if (font == null || !fontName.Equals(font.Name)) return;
+
+            Type type = this.GetType();
+            FieldInfo[] fieldInfos = type.GetFields(BindingFlags.NonPublic | BindingFlags.Instance);
+            foreach (FieldInfo fieldInfo in fieldInfos)
+            {
+                Type fieldType = fieldInfo.FieldType;
+                if ("System.Windows.Forms".Equals(fieldType.Namespace))
+                {
+                    try
+                    {
+                        PropertyInfo propertyInfo = fieldType.GetProperty("Font");
+                        Object obj = fieldInfo.GetValue(this);
+                        propertyInfo.SetValue(obj, font);
+                    }
+                    catch (System.Exception) { }
+                }
+            }
+        }
+
         /// <summary>
         /// 读取搜索框并重新加载配置
         /// </summary>