C# 获取系统文件图标

获取文件的图标

 this.Icon = GetFileIcon(@"c:/gdiplus.dll");

获取文件夹图标

 this.Icon = GetDirectoryIcon();    

 

 

 

全不代码

 

[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> /// 返回系统设置的图标 /// </summary> /// <param name="pszPath">文件路径 如果为"" 返回文件夹的</param> /// <param name="dwFileAttributes">0</param> /// <param name="psfi">结构体</param> /// <param name="cbSizeFileInfo">结构体大小</param> /// <param name="uFlags">枚举类型</param> /// <returns>-1失败</returns> [DllImport("shell32.dll")] public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags); public enum SHGFI { SHGFI_ICON = 0x100, SHGFI_LARGEICON = 0x0, SHGFI_USEFILEATTRIBUTES = 0x10 } /// <summary> /// 获取文件图标 [email protected] qq:116149 /// </summary> /// <param name="p_Path">文件全路径</param> /// <returns>图标</returns> public static Icon GetFileIcon(string p_Path) { SHFILEINFO _SHFILEINFO = new SHFILEINFO(); IntPtr _IconIntPtr = SHGetFileInfo(p_Path, 0, ref _SHFILEINFO, (uint)Marshal.SizeOf(_SHFILEINFO), (uint)(SHGFI.SHGFI_ICON | SHGFI.SHGFI_LARGEICON | SHGFI.SHGFI_USEFILEATTRIBUTES)); if (_IconIntPtr.Equals(IntPtr.Zero)) return null; Icon _Icon = System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon); return _Icon; } /// <summary> /// 获取文件夹图标 [email protected] qq:116149 /// </summary> /// <returns>图标</returns> public static Icon GetDirectoryIcon() { SHFILEINFO _SHFILEINFO = new SHFILEINFO(); IntPtr _IconIntPtr = SHGetFileInfo(@"", 0, ref _SHFILEINFO, (uint)Marshal.SizeOf(_SHFILEINFO), (uint)(SHGFI.SHGFI_ICON | SHGFI.SHGFI_LARGEICON)); if (_IconIntPtr.Equals(IntPtr.Zero)) return null; Icon _Icon = System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon); return _Icon; }