public static BitmapSource GetSmallIcon(string FileName, bool small)
{
var shinfo = new II.SHFILEINFO();
uint flags;
if (small)
{
flags = II.SHGFI_ICON | II.SHGFI_SMALLICON;
}
else
{
flags = II.SHGFI_ICON | II.SHGFI_LARGEICON;
}
var res = II.SHGetFileInfo(FileName, 0, ref shinfo, Marshal.SizeOf(shinfo), flags);
if (res == 0)
{
throw (new FileNotFoundException());
}
var bs = IconSource(shinfo.hIcon);
bs.Freeze(); // very important to avoid memory leak
II.DestroyIcon(shinfo.hIcon);
return(bs);
}
public static BitmapSource GetLargeIcon(string path, bool jumbo)
{
var shinfo = new II.SHFILEINFO();
const uint SHGFI_SYSICONINDEX = 0x4000;
const int FILE_ATTRIBUTE_NORMAL = 0x80;
var flags = SHGFI_SYSICONINDEX;
var res = II.SHGetFileInfo(path, FILE_ATTRIBUTE_NORMAL, ref shinfo, Marshal.SizeOf(shinfo), flags);
if (res == 0)
{
return(null);
}
var iconIndex = shinfo.iIcon;
// Get the System IImageList object from the Shell:
var iidImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
II.IImageList iml;
var size = jumbo ? II.SHIL_JUMBO : II.SHIL_EXTRALARGE;
II.SHGetImageList(size, ref iidImageList, out iml);
var hIcon = IntPtr.Zero;
const int ILD_TRANSPARENT = 1;
iml.GetIcon(iconIndex, ILD_TRANSPARENT, ref hIcon);
var bs = IconSource(hIcon);
bs.Freeze(); // very important to avoid memory leak
II.DestroyIcon(hIcon);
II.SendMessage(hIcon, II.WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
return(bs);
}