public static Icon GetIconFrom(string PathName, IconSize IcoSize, bool UseFileAttributes)
{
Icon ico = null;
SHFILEINFOW shinfo = new SHFILEINFOW();
uint flags = SHGFI_SYSICONINDEX;
if (UseFileAttributes)
{
flags |= SHGFI_USEFILEATTRIBUTES;
}
if (SHGetFileInfoW(PathName, FILE_ATTRIBUTE_NORMAL, ref shinfo, Marshal.SizeOf(shinfo), flags) == 0)
{
throw new System.IO.FileNotFoundException();
}
Guid iidImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
IImageList iml = null;
SHGetImageList((int)IcoSize, ref iidImageList, ref iml);
if (iml != null)
{
IntPtr hIcon = IntPtr.Zero;
iml.GetIcon(shinfo.iIcon, (int)ILD_IMAGE, ref hIcon);
ico = (Icon)Icon.FromHandle(hIcon).Clone();
DestroyIcon(hIcon);
if (ico.ToBitmap().PixelFormat != PixelFormat.Format32bppArgb)
{
ico.Dispose();
iml.GetIcon(shinfo.iIcon, (int)ILD_TRANSPARENT, ref hIcon);
ico = (Icon)Icon.FromHandle(hIcon).Clone();
DestroyIcon(hIcon);
}
}
return(ico);
}
public static bool GetFileInfo(string fileName, ref Item item)
{
if (!File.Exists(fileName))
{
return(false);
}
var info = new SHFILEINFOW();
SHGetFileInfoW(fileName, FileAttributesFlags.FILE_ATTRIBUTE_NORMAL,
ref info, (uint)Marshal.SizeOf(info),
ShellFileInfoFlags.SHGFI_ICON | ShellFileInfoFlags.SHGFI_SMALLICON |
ShellFileInfoFlags.SHGFI_TYPENAME | ShellFileInfoFlags.SHGFI_DISPLAYNAME);
item.Image = Imaging.CreateBitmapSourceFromHIcon(info.hIcon, Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
item.Type = info.szTypeName;
item.Title = Path.GetFileNameWithoutExtension(info.szDisplayName);
item.Path = fileName;
item.Base64 = item.Image.ToBase64String();
return(true);
}
public static BitmapSource GetIcon(string path, IconSize size)
{
BitmapSource result = null;
var shinfo = new SHFILEINFOW();
var flags = SHGFI_SYSICONINDEX;
if (SHGetFileInfoW(path, FILE_ATTRIBUTE_NORMAL, ref shinfo, Marshal.SizeOf(shinfo), flags) != 0)
{
IImageList iml = null;
var guid = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
SHGetImageList((int)size, ref guid, ref iml);
if (iml != null)
{
var hIcon = IntPtr.Zero;
iml.GetIcon(shinfo.iIcon, (int)ILD_IMAGE, ref hIcon);
var icon = Icon.FromHandle(hIcon);
if (icon.ToBitmap().PixelFormat != PixelFormat.Format32bppArgb)
{
icon.Dispose();
DestroyIcon(hIcon);
iml.GetIcon(shinfo.iIcon, (int)ILD_TRANSPARENT, ref hIcon);
}
result = Imaging.CreateBitmapSourceFromHIcon(icon.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
result.Freeze();
icon.Dispose();
DestroyIcon(hIcon);
}
}
return(result);
}
/// <summary>
/// Extracts an icon from any file type.
/// </summary>
public static Icon ExtractIcon(string filePath, IconSize size)
{
Icon icon = null;
var fileInfo = new SHFILEINFOW();
if (NativeMethods.SHGetFileInfoW(filePath, NativeMethods.FILE_ATTRIBUTE_NORMAL, ref fileInfo, Marshal.SizeOf(fileInfo), NativeMethods.SHGFI_SYSICONINDEX) == 0)
{
throw new FileNotFoundException();
}
var iidImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
IImageList imageList = null;
NativeMethods.SHGetImageList((int)size, ref iidImageList, ref imageList);
if (imageList != null)
{
var hIcon = IntPtr.Zero;
imageList.GetIcon(fileInfo.iIcon, (int)NativeMethods.ILD_IMAGE, ref hIcon);
icon = Icon.FromHandle(hIcon).Clone() as Icon;
NativeMethods.DestroyIcon(hIcon);
if (icon.ToBitmap().PixelFormat != PixelFormat.Format32bppArgb)
{
icon.Dispose();
imageList.GetIcon(fileInfo.iIcon, (int)NativeMethods.ILD_TRANSPARENT, ref hIcon);
icon = Icon.FromHandle(hIcon).Clone() as Icon;
NativeMethods.DestroyIcon(hIcon);
}
}
return(icon);
}
private static extern int SHGetFileInfoW(IntPtr pszPath, uint dwFileAttributes, ref SHFILEINFOW psfi, int cbFileInfo, uint uFlags);
private static extern int SHGetFileInfoW([MarshalAs(UnmanagedType.LPWStr)] string pszPath, uint dwFileAttributes, ref SHFILEINFOW psfi, int cbFileInfo, uint uFlags);
public static extern IntPtr SHGetFileInfo(string path, uint fileAttributes, ref SHFILEINFOW sfi, uint cbFileInfo, SHGFI flags);
private static extern IntPtr SHGetFileInfoW(string pszPath, FileAttributesFlags dwFileAttributes, ref SHFILEINFOW psfi, uint cbSizeFileInfo, ShellFileInfoFlags uFlags);
