private static IntPtr GetIconHandleFromFilePath(string filepath, IconSizeEnum iconsize)
{
var shinfo = new Shell.SHFILEINFO();
const uint SHGFI_SYSICONINDEX = 0x4000;
const int FILE_ATTRIBUTE_NORMAL = 0x80;
const uint flags = SHGFI_SYSICONINDEX;
return(getIconHandleFromFilePathWithFlags(filepath, iconsize, ref shinfo, FILE_ATTRIBUTE_NORMAL, flags));
}
private static IntPtr GetIconHandleFromFolderPath(string folderpath, IconSizeEnum iconsize)
{
var shinfo = new Shell.SHFILEINFO();
const uint SHGFI_ICON = 0x000000100;
const uint SHGFI_USEFILEATTRIBUTES = 0x000000010;
const int FILE_ATTRIBUTE_DIRECTORY = 0x00000010;
const uint flags = SHGFI_ICON | SHGFI_USEFILEATTRIBUTES;
return(getIconHandleFromFilePathWithFlags(folderpath, iconsize, ref shinfo, FILE_ATTRIBUTE_DIRECTORY, flags));
}
public DirectoryNode(string path)
{
if (!Directory.Exists(path))
{
throw new FileNotFoundException("The directory added to MediaDirectory was not found.", path);
}
_path = path;
_nodes = new List <IMediaNode>();
_name = new FileInfo(_path).Name;
string[] files = Directory.GetFiles(_path);
foreach (string file in files)
{
_nodes.Add(new FileNode(file));
}
string[] directories = Directory.GetDirectories(_path);
foreach (string directory in directories)
{
_nodes.Add(new DirectoryNode(directory));
}
_sizeOnDisc = 0;
foreach (IMediaNode node in _nodes)
{
_sizeOnDisc += node.SizeOnDisc;
}
//
// Get the Directory icon
//
Shell.SHFILEINFO shinfo = new Shell.SHFILEINFO();
IntPtr hImg = Shell.SHGetFileInfo(_path, 0, ref shinfo,
(uint)Marshal.SizeOf(shinfo), Shell.SHGFI_ICON | Shell.SHGFI_SMALLICON);
if (shinfo.hIcon != null)
{
//The icon is returned in the hIcon member of the shinfo struct
System.Drawing.IconConverter imageConverter = new System.Drawing.IconConverter();
System.Drawing.Icon icon = System.Drawing.Icon.FromHandle(shinfo.hIcon);
try
{
_fileIcon = (System.Drawing.Image)imageConverter.ConvertTo(icon, typeof(System.Drawing.Image));
}
catch (NotSupportedException)
{
}
Shell.DestroyIcon(shinfo.hIcon);
}
}
private static IntPtr getIconHandleFromFilePathWithFlags(
string filepath, IconSizeEnum iconsize,
ref Shell.SHFILEINFO shinfo, int fileAttributeFlag, uint flags)
{
const int ILD_TRANSPARENT = 1;
var retval = SHGetFileInfo(filepath, fileAttributeFlag, ref shinfo, Marshal.SizeOf(shinfo), flags);
if (retval == 0)
{
throw new System.IO.FileNotFoundException();
}
var iconIndex = shinfo.iIcon;
var iImageListGuid = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
_ = SHGetImageList((int)iconsize, ref iImageListGuid, out Shell.IImageList iml);
var hIcon = IntPtr.Zero;
_ = iml.GetIcon(iconIndex, ILD_TRANSPARENT, ref hIcon);
return(hIcon);
}
public FileNode(string path)
{
if (!File.Exists(path))
{
throw new FileNotFoundException("The file added to MediaFile was not found.", path);
}
_fileIcon = null;
_path = path;
FileInfo fileInfo = new FileInfo(_path);
_name = fileInfo.Name;
_sizeOnDisc = fileInfo.Length;
//
// Get the File icon
//
Shell.SHFILEINFO shinfo = new Shell.SHFILEINFO();
IntPtr hImg = Shell.SHGetFileInfo(_path, 0, ref shinfo,
(uint)Marshal.SizeOf(shinfo), Shell.SHGFI_ICON | Shell.SHGFI_SMALLICON);
if (shinfo.hIcon != null)
{
//The icon is returned in the hIcon member of the shinfo struct
System.Drawing.IconConverter imageConverter = new System.Drawing.IconConverter();
System.Drawing.Icon icon = System.Drawing.Icon.FromHandle(shinfo.hIcon);
try
{
_fileIcon = (System.Drawing.Image)imageConverter.ConvertTo(icon, typeof(System.Drawing.Image));
}
catch (NotSupportedException)
{
}
Shell.DestroyIcon(shinfo.hIcon);
}
}
public static extern int SHGetFileInfo(
string pszPath,
int dwFileAttributes,
ref Shell.SHFILEINFO psfi,
int cbFileInfo,
uint uFlags);
