static ShellImageList()
{
IntPtr desktopFolderPtr;
NativeMethods.Shell32.SHGetDesktopFolder(out desktopFolderPtr);
m_desktopFolder = (NativeMethods.IShellFolder)Marshal.GetObjectForIUnknown(desktopFolderPtr);
m_imageTable = new Hashtable();
uint flag = NativeMethods.SHGFI_USEFILEATTRIBUTES | NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_SMALLICON;
NativeMethods.SHFILEINFO shfiSmall = new NativeMethods.SHFILEINFO();
m_smallImageListHandle = NativeMethods.Shell32.SHGetFileInfo(".txt", NativeMethods.FILE_ATTRIBUTE_NORMAL, ref shfiSmall, Marshal.SizeOf(shfiSmall), flag);
flag = NativeMethods.SHGFI_USEFILEATTRIBUTES | NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_LARGEICON;
NativeMethods.SHFILEINFO shfiLarge = new NativeMethods.SHFILEINFO();
m_largeImageListHandle = NativeMethods.Shell32.SHGetFileInfo(".txt", NativeMethods.FILE_ATTRIBUTE_NORMAL, ref shfiLarge, Marshal.SizeOf(shfiLarge), flag);
}
internal static int GetIconIndex(IntPtr pidl, bool selectedIcon, bool openIcon)
{
NativeMethods.SHFILEINFO info = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, 0, ref info, NativeMethods.cbFileInfo, NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_SYSICONINDEX);
int index = info.iIcon;
bool hasOverlay = false; // true if it's an overlay
int rVal; // The returned Index
IntPtr[] pidls = new IntPtr[] { pidl };
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_LINK |
NativeMethods.SHGFAO.SFGAO_SHARE |
NativeMethods.SHGFAO.SFGAO_HIDDEN |
NativeMethods.SHGFAO.SFGAO_FILESYSTEM |
NativeMethods.SHGFAO.SFGAO_FOLDER;
m_desktopFolder.GetAttributesOf(1, pidls, ref attribs);
uint dwflag = NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ICON;
int dwAttr = 0;
// Build Key into HashTable for this Item
int key = index * 256;
if ((attribs & NativeMethods.SHGFAO.SFGAO_LINK) != 0)
{
key = key | 1;
dwflag = dwflag | NativeMethods.SHGFI_LINKOVERLAY;
hasOverlay = true;
}
if ((attribs & NativeMethods.SHGFAO.SFGAO_SHARE) != 0)
{
key = key | 2;
dwflag = dwflag | NativeMethods.SHGFI_ADDOVERLAYS;
hasOverlay = true;
}
if (selectedIcon)
{
key = key | 4;
dwflag = dwflag | NativeMethods.SHGFI_SELECTED;
hasOverlay = true;
}
if (openIcon)
{
key = key | 8;
dwflag = dwflag | NativeMethods.SHGFI_OPENICON;
hasOverlay = true; // Not really an overlay, but handled the same
}
if (m_imageTable.ContainsKey(key))
rVal = (int)m_imageTable[key];
else if (!hasOverlay && (attribs & NativeMethods.SHGFAO.SFGAO_HIDDEN) == 0) // For non-overlay icons, we already have
{
rVal = (int)Math.Floor((double)key / 256); // the right index -- put in table
m_imageTable[key] = rVal;
}
else // Don't have iconindex for an overlay, get it.
{
//item.m_isDisk = (item.m_path.Length == 3 && item.m_path.EndsWith(":\\"));
if ((attribs & NativeMethods.SHGFAO.SFGAO_FILESYSTEM) != 0 &&
(attribs & NativeMethods.SHGFAO.SFGAO_FOLDER) == 0)
{
dwflag = dwflag | NativeMethods.SHGFI_USEFILEATTRIBUTES;
dwAttr = dwAttr | NativeMethods.FILE_ATTRIBUTE_NORMAL;
}
NativeMethods.SHFILEINFO shfiSmall = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfiSmall, Marshal.SizeOf(shfiSmall), dwflag | NativeMethods.SHGFI_SMALLICON);
NativeMethods.SHFILEINFO shfiLarge = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfiLarge, Marshal.SizeOf(shfiLarge), dwflag | NativeMethods.SHGFI_LARGEICON);
lock (m_imageTable)
{
rVal = NativeMethods.ComCtl32.ImageList_ReplaceIcon(m_smallImageListHandle, -1, shfiSmall.hIcon);
NativeMethods.ComCtl32.ImageList_ReplaceIcon(m_largeImageListHandle, -1, shfiLarge.hIcon);
}
NativeMethods.User32.DestroyIcon(shfiSmall.hIcon);
NativeMethods.User32.DestroyIcon(shfiLarge.hIcon);
m_imageTable[key] = rVal;
}
return rVal;
}
public static Image GetImage(IntPtr pidl)
{
uint dwflag = NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ICON;
int dwAttr = 0;
NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfi, Marshal.SizeOf(shfi), dwflag);
IntPtr iconPtr = NativeMethods.ComCtl32.ImageList_GetIcon(m_largeImageListHandle, shfi.iIcon, NativeMethods.ILD_NORMAL);
return Icon.FromHandle(iconPtr).ToBitmap();
}
public static Image GetSmallImage(SpecialFolder specialFolder)
{
uint dwflag = NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ICON;
int dwAttr = 0;
IntPtr pidl;
NativeMethods.Shell32.SHGetSpecialFolderLocation(IntPtr.Zero, (int)specialFolder, out pidl);
NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(pidl, dwAttr, ref shfi, Marshal.SizeOf(shfi), dwflag);
IntPtr iconPtr = NativeMethods.ComCtl32.ImageList_GetIcon(m_smallImageListHandle, shfi.iIcon, NativeMethods.ILD_NORMAL);
return Icon.FromHandle(iconPtr).ToBitmap();
}
private static NativeMethods.SHGFAO GetAttributesOf(IntPtr abspidl)
{
NativeMethods.SHFILEINFO sfi = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(abspidl, NativeMethods.FILE_ATTRIBUTE_NORMAL, ref sfi,
NativeMethods.cbFileInfo,
NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ATTRIBUTES);
return (NativeMethods.SHGFAO)sfi.dwAttributes;
}
// Allows the common dialog box to filter objects that the view displays.
int NativeMethods.ICommDlgBrowser.IncludeObject(IntPtr ppshv, IntPtr pidl)
{
IntPtr strr = Marshal.AllocCoTaskMem(NativeMethods.MAX_PATH * 2 + 4);
Marshal.WriteInt32(strr, 0, 0);
StringBuilder buf = new StringBuilder(NativeMethods.MAX_PATH);
IntPtr[] pidls = new IntPtr[] { pidl };
NativeMethods.SHGFAO attribs = NativeMethods.SHGFAO.SFGAO_FILESYSANCESTOR |
NativeMethods.SHGFAO.SFGAO_STREAM |
NativeMethods.SHGFAO.SFGAO_LINK;
m_currentFolder.GetAttributesOf(1, pidls, ref attribs);
bool isFile = ((attribs & NativeMethods.SHGFAO.SFGAO_STREAM) == NativeMethods.SHGFAO.SFGAO_STREAM);
bool isLink = ((attribs & NativeMethods.SHGFAO.SFGAO_LINK) == NativeMethods.SHGFAO.SFGAO_LINK);
if (m_excludeFiles && !isLink && (isFile || (attribs & NativeMethods.SHGFAO.SFGAO_FILESYSANCESTOR) == 0))
return NativeMethods.S_FALSE;
if (!isFile && (attribs & NativeMethods.SHGFAO.SFGAO_FILESYSANCESTOR) == 0)
return NativeMethods.S_FALSE;
if (m_currentFolder.GetDisplayNameOf(
pidl,
NativeMethods.SHGNO.SHGDN_FORPARSING,
strr) == NativeMethods.S_OK)
{
NativeMethods.Shlwapi.StrRetToBuf(strr, pidl, buf, NativeMethods.MAX_PATH);
string path = buf.ToString();
string name = path.Substring(path.LastIndexOf('\\') + 1);
// If the object is a newly created folder browser to that folder
if (CreateNewFolder(path, pidl))
return NativeMethods.S_OK;
if (isLink && File.Exists(path))
{
NativeMethods.IShellLink psl;
psl = (NativeMethods.IShellLink)new NativeMethods.ShellLink();
NativeMethods.IPersistFile ppf;
ppf = (NativeMethods.IPersistFile)psl;
ppf.Load(path, 0);
IntPtr linkPidl;
psl.GetIDList(out linkPidl);
// IShellFolder.GetAttributesOf doesn't work
NativeMethods.SHFILEINFO sfi = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(linkPidl, NativeMethods.FILE_ATTRIBUTE_NORMAL, ref sfi,
NativeMethods.cbFileInfo,
NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_ATTRIBUTES);
string linkPath = GetDisplayName(m_desktopFolder, linkPidl, NativeMethods.SHGNO.SHGDN_FORPARSING);
NativeMethods.Shell32.ILFree(linkPidl);
Marshal.ReleaseComObject(ppf);
Marshal.ReleaseComObject(psl);
if ((sfi.dwAttributes & (int)NativeMethods.SHGFAO.SFGAO_FOLDER) ==
(int)NativeMethods.SHGFAO.SFGAO_FOLDER)
return NativeMethods.S_OK;
if ((sfi.dwAttributes & (int)NativeMethods.SHGFAO.SFGAO_STREAM) ==
(int)NativeMethods.SHGFAO.SFGAO_STREAM)
{
if (m_excludeFiles)
return NativeMethods.S_FALSE;
string linkName = linkPath.Substring(linkPath.LastIndexOf('\\') + 1);
FileType linkFileType = (FileType)fileTypeComboBox.SelectedItem;
if (m_currentFilePattern != string.Empty)
{
// If the object is a file and the file doesn't match the pattern, don't include the object
if (isFile && !Regex.IsMatch(linkName, m_currentFilePattern, RegexOptions.Compiled))
return NativeMethods.S_FALSE;
}
else if (linkFileType != null)
{
if (linkFileType.IncludeAllFiles)
return NativeMethods.S_OK;
// If the object is a file and the file doesn't math the pattern, don't include the object
if (isFile && !Regex.IsMatch(name, linkFileType.FilterPattern, RegexOptions.Compiled))
return NativeMethods.S_FALSE;
}
return NativeMethods.S_OK;
}
}
if (m_excludeFiles)
return NativeMethods.S_OK;
FileType fileType = (FileType)fileTypeComboBox.SelectedItem;
if (m_currentFilePattern != string.Empty)
{
// If the object is a file and the file doesn't match the pattern, don't include the object
if (isFile && !Regex.IsMatch(name, m_currentFilePattern, RegexOptions.Compiled))
return NativeMethods.S_FALSE;
}
else if (fileType != null)
{
if (fileType.IncludeAllFiles)
return NativeMethods.S_OK;
// If the object is a file and the file doesn't math the pattern, don't include the object
if (isFile && !Regex.IsMatch(name, fileType.FilterPattern, RegexOptions.Compiled))
return NativeMethods.S_FALSE;
}
}
return NativeMethods.S_OK;
}
private void Init()
{
// My Computer
NativeMethods.SHFILEINFO info = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetSpecialFolderLocation(IntPtr.Zero, (int)SpecialFolder.MyComputer,
out m_myCompPidl);
NativeMethods.Shell32.SHGetFileInfo(m_myCompPidl, 0, ref info, NativeMethods.cbFileInfo,
NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_DISPLAYNAME);
// Desktop
NativeMethods.Shell32.SHGetSpecialFolderLocation(IntPtr.Zero, (int)SpecialFolder.Desktop, out m_desktopPidl);
IntPtr desktopFolderPtr;
NativeMethods.Shell32.SHGetDesktopFolder(out desktopFolderPtr);
m_desktopFolder = (NativeMethods.IShellFolder)Marshal.GetObjectForIUnknown(desktopFolderPtr);
m_desktopPath = GetDisplayName(m_desktopFolder, m_desktopPidl, NativeMethods.SHGNO.SHGDN_FORPARSING);
m_currentFolder = m_desktopFolder;
// My Documents
m_desktopFolder.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, NativeMethods.CLSID_MyDocuments, IntPtr.Zero,
out m_myDocsPidl, 0);
info = new NativeMethods.SHFILEINFO();
NativeMethods.Shell32.SHGetFileInfo(m_myDocsPidl, 0, ref info, NativeMethods.cbFileInfo,
NativeMethods.SHGFI_PIDL | NativeMethods.SHGFI_DISPLAYNAME);
m_myDocsPath = GetDisplayName(m_desktopFolder, m_myDocsPidl, NativeMethods.SHGNO.SHGDN_FORPARSING);
}
