void GetIcon(ISession session, string iconExtension)
{
var iconHandle = IntPtr.Zero;
try
{
for (var i = 0; i < 4; i++)
{
var shinfo = new Api.SHFILEINFO();
Api.SHGetFileInfo(iconExtension,
Api.FILE_ATTRIBUTE_NORMAL, ref shinfo, (uint)Marshal.SizeOf(shinfo),
(int)(Api.SHGetFileInfoConstants.SHGFI_ICON |
Api.SHGetFileInfoConstants.SHGFI_SMALLICON |
Api.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES |
Api.SHGetFileInfoConstants.SHGFI_TYPENAME));
if (shinfo.hIcon == IntPtr.Zero)
{
var watt = Marshal.GetLastWin32Error();
if (watt == 997)
{
Thread.Sleep(20);
continue;
}
throw new Exception("Fehler");
}
iconHandle = shinfo.hIcon;
break;
}
using (var icon = Icon.FromHandle(iconHandle))
{
using (var bitmap = icon.ToBitmap())
{
var ms = new System.IO.MemoryStream();
bitmap.Save(ms, ImageFormat.Png);
ms.Position = 0;
session.SendStream(ms, "image/png", Constants.NotModified, false);
}
}
}
catch (Exception)
{
session.SendError("Nicht gefunden", "Nicht gefunden", 404, "Not Found");
}
finally
{
Api.DestroyIcon(iconHandle);
}
}
public static ImageBrush ExtractIcon(string name)
{
var shinfo = new Api.SHFILEINFO();
var ptr = Api.SHGetFileInfo(name,
Api.FILE_ATTRIBUTE_NORMAL, ref shinfo, (uint)Marshal.SizeOf(shinfo),
(int)(Api.SHGetFileInfoConstants.SHGFI_ICON |
Api.SHGetFileInfoConstants.SHGFI_SMALLICON |
Api.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES |
Api.SHGetFileInfoConstants.SHGFI_TYPENAME));
var icon = Icon.FromHandle(shinfo.hIcon).Clone() as Icon;
Api.DestroyIcon(shinfo.hIcon);
var brush = CreateBrush(icon);
icon.Dispose();
return(brush);
}
