init: 导入项目到 meswork Gitea

2026-05-29 10:07:05 +08:00
commit ad9a4106fb
3582 changed files with 460312 additions and 0 deletions
--- a/DataMirrorTools_Simulator/ModelBasic/ExportModelHandler/GetSystemIcon.cs
+++ b/DataMirrorTools_Simulator/ModelBasic/ExportModelHandler/GetSystemIcon.cs
@@ -0,0 +1,127 @@
+using System;
+using System.Drawing;
+using System.IO;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Win32;
+using System.Runtime.InteropServices;
+
+namespace FileExplorer
+{
+   public class GetSystemIcon
+    {
+        /// <summary>
+        /// 依据文件名读取图标，若指定文件不存在，则返回空值。
+        /// </summary>
+        /// <param name="fileName"></param>
+        /// <returns></returns>
+        public static Icon GetIconByFileName(string fileName)
+        {
+            if (fileName == null || fileName.Equals(string.Empty)) return null;
+            if (!File.Exists(fileName)) return null;
+
+             SHFILEINFO shinfo = new SHFILEINFO();
+            //Use this to get the small Icon
+             Win32.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_LARGEICON);
+            //The icon is returned in the hIcon member of the shinfo struct
+             System.Drawing.Icon myIcon = System.Drawing.Icon.FromHandle(shinfo.hIcon);
+            return myIcon;
+        }
+
+        /// <summary>
+        /// 给出文件扩展名（.*），返回相应图标
+        /// 若不以"."开头则返回文件夹的图标。
+        /// </summary>
+        /// <param name="fileType"></param>
+        /// <param name="isLarge"></param>
+        /// <returns></returns>
+        public static Icon GetIconByFileType(string fileType, bool isLarge)
+        {
+            if (fileType == null || fileType.Equals(string.Empty)) return null;
+
+             RegistryKey regVersion = null;
+             string regFileType = null;
+             string regIconString = null;
+             string systemDirectory = Environment.SystemDirectory + "\\";
+
+            if (fileType[0] == '.')
+            {
+                //读系统注册表中文件类型信息
+                 regVersion = Registry.ClassesRoot.OpenSubKey(fileType, true);
+                if (regVersion != null)
+                {
+                     regFileType = regVersion.GetValue("") as string;
+                     regVersion.Close();
+                     regVersion = Registry.ClassesRoot.OpenSubKey(regFileType + @"\DefaultIcon", true);
+                    if (regVersion != null)
+                    {
+                         regIconString = regVersion.GetValue("") as string;
+                         regVersion.Close();
+                    }
+                }
+                if (regIconString == null)
+                {
+                    //没有读取到文件类型注册信息，指定为未知文件类型的图标
+                     regIconString = systemDirectory + "shell32.dll,0";
+                }
+            }
+            else
+            {
+                //直接指定为文件夹图标
+                 regIconString = systemDirectory + "shell32.dll,3";
+            }
+             string[] fileIcon = regIconString.Split(new char[] { ',' });
+            if (fileIcon.Length != 2)
+            {
+                //系统注册表中注册的标图不能直接提取，则返回可执行文件的通用图标
+                 fileIcon = new string[] { systemDirectory + "shell32.dll", "2" };
+            }
+             Icon resultIcon = null;
+            try
+            {
+                //调用API方法读取图标
+                int[] phiconLarge = new int[1];
+                int[] phiconSmall = new int[1];
+                 uint count = Win32.ExtractIconEx(fileIcon[0], Int32.Parse(fileIcon[1]), phiconLarge, phiconSmall, 1);
+                 IntPtr IconHnd = new IntPtr(isLarge ? phiconLarge[0] : phiconSmall[0]);
+                 resultIcon = Icon.FromHandle(IconHnd);
+            }
+            catch(Exception err) 
+            { 
+                        LogNet.LogisTrac.WriteLog(typeof(GetSystemIcon), err);
+
+            }
+            return resultIcon;
+        }
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct SHFILEINFO
+    {
+        public IntPtr hIcon;
+        public IntPtr iIcon;
+        public uint dwAttributes;
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
+        public string szDisplayName;
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
+        public string szTypeName;
+    };
+
+    /// <summary>
+    /// 定义调用的API方法
+    /// </summary>
+    class Win32
+    {
+        public const uint SHGFI_ICON = 0x100;
+        public const uint SHGFI_LARGEICON = 0x0; // 'Large icon
+        public const uint SHGFI_SMALLICON = 0x1; // 'Small icon
+
+        [DllImport("shell32.dll")]
+        public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);
+        [DllImport("shell32.dll")]
+        public static extern uint ExtractIconEx(string lpszFile, int nIconIndex, int[] phiconLarge, int[] phiconSmall, uint nIcons);
+
+    }
+
+}