public string GetRegisteredIcon(string filePath)
{
var ext = GetFileEntryType(filePath);
if (CachedIcons.ContainsKey(ext))
{
return(CachedIcons[ext]);
}
var shinfo = new SHfileInfo();
Win32.SHGetFileInfo(filePath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo),
Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
Icon icon;
using (var origIcon = Icon.FromHandle(shinfo.hIcon))
{
icon = (Icon)origIcon.Clone();
}
Win32.DestroyIcon(shinfo.hIcon);
var iconPath = saveIconLocal(icon, ext);
CachedIcons.Add(ext, iconPath);
return(iconPath);
}
public static System.Drawing.Icon GetRegisteredIcon(string filePath)
{
var shinfo = new SHfileInfo();
Win32.SHGetFileInfo(filePath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
return(System.Drawing.Icon.FromHandle(shinfo.hIcon));
}
public static ImageSource GetRegisteredIcon(string filePath, int width, int height)
{
var shinfo = new SHfileInfo();
const uint SHGFI_ICON = 0x100;
const uint SHGFI_SMALLICON = 0x1;
SHGetFileInfo(filePath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), SHGFI_ICON | SHGFI_SMALLICON);
var icon = Icon.FromHandle(shinfo.hIcon);
var hBitmap = icon.ToBitmap().GetHbitmap();
var bmpSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromWidthAndHeight(width, height));
DeleteObject(hBitmap);
return(bmpSource);
}
public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHfileInfo psfi, uint cbSizeFileInfo, uint uFlags);
