/// <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_SMALLICON);
//The icon is returned in the hIcon member of the shinfo struct
System.Drawing.Icon myIcon = System.Drawing.Icon.FromHandle(shinfo.hIcon);
return myIcon;
}
public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);