/// <summary>
/// 获取文件类型的关联图标
/// </summary>
/// <param name="fileName">文件类型的扩展名或文件的绝对路径</param>
/// <param name="isLargeIcon">是否返回大图标</param>
/// <returns>获取到的图标</returns>
public static Icon GetIcon(string fileName, bool isLargeIcon)
{
SHFILEINFO shfi = new SHFILEINFO();
IntPtr hI;
if (isLargeIcon)
{
hI = APIs.SHGetFileInfo(fileName, 0, ref shfi, (uint)Marshal.SizeOf(shfi), (uint)FileInfoFlags.SHGFI_ICON | (uint)FileInfoFlags.SHGFI_USEFILEATTRIBUTES | (uint)FileInfoFlags.SHGFI_LARGEICON);
}
else
{
hI = APIs.SHGetFileInfo(fileName, 0, ref shfi, (uint)Marshal.SizeOf(shfi), (uint)FileInfoFlags.SHGFI_ICON | (uint)FileInfoFlags.SHGFI_USEFILEATTRIBUTES | (uint)FileInfoFlags.SHGFI_SMALLICON);
}
Icon icon = Icon.FromHandle(shfi.hIcon).Clone() as Icon;
APIs.DestroyIcon(shfi.hIcon); //释放资源
return(icon);
}
/// <summary>
/// 获取文件夹图标
/// </summary>
/// <returns>图标</returns>
public static Icon GetDirectoryIcon(bool isLargeIcon)
{
SHFILEINFO _SHFILEINFO = new SHFILEINFO();
IntPtr _IconIntPtr;
if (isLargeIcon)
{
_IconIntPtr = APIs.SHGetFileInfo(@"", 0, ref _SHFILEINFO, (uint)Marshal.SizeOf(_SHFILEINFO), ((uint)FileInfoFlags.SHGFI_ICON | (uint)FileInfoFlags.SHGFI_LARGEICON));
}
else
{
_IconIntPtr = APIs.SHGetFileInfo(@"", 0, ref _SHFILEINFO, (uint)Marshal.SizeOf(_SHFILEINFO), ((uint)FileInfoFlags.SHGFI_ICON | (uint)FileInfoFlags.SHGFI_SMALLICON));
}
if (_IconIntPtr.Equals(IntPtr.Zero))
{
return(null);
}
Icon _Icon = System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon);
return(_Icon);
}