/// <summary>
/// Constructor. Creates the ShellItem object for the Desktop.
/// </summary>
public ShellItem()
{
// Obtain the root IShellFolder interface.
int hRes = ShellAPI.SHGetDesktopFolder(ref m_shRootShell);
if (hRes != 0)
Marshal.ThrowExceptionForHR(hRes);
// Now get the PIDL for the Desktop shell item.
hRes = ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.CSIDL_DESKTOP, ref m_pIDL);
if (hRes != 0)
Marshal.ThrowExceptionForHR(hRes);
// Now retrieve some attributes for the root shell item.
ShellAPI.SHFILEINFO shInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(m_pIDL, 0, out shInfo, (uint)Marshal.SizeOf(shInfo),
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_SYSICONINDEX
);
// Set the arributes to object properties.
DisplayName = shInfo.szDisplayName;
IconIndex = shInfo.iIcon;
IsFolder = true;
HasSubFolder = true;
Path = GetPath();
// Internal with no set{} mutator.
m_shShellFolder = RootShellFolder;
m_bHaveRootShell = true;
}
public void Dispose()
{
// Release the IShellFolder interface of this shell item.
if (m_shShellFolder != null)
{
if (m_shShellFolder == ShellItem.m_shRootShell)
{
// If you release m_shRootShell you have also to update m_shRootShell and m_bHaveRootShell
m_shRootShell = null;
m_bHaveRootShell = false;
Marshal.ReleaseComObject(m_shShellFolder);
}
else
{
Marshal.ReleaseComObject(m_shShellFolder);
}
}
// Free the PIDL too.
if (!m_pIDL.Equals(IntPtr.Zero))
{
Marshal.FreeCoTaskMem(m_pIDL);
}
GC.SuppressFinalize(this);
}
/// <summary>
/// コンストラクタ。指定された ShellItem の子として初期化する。
/// 初期化途中で例外が発生したら pIDL を所有してはならない。
/// </summary>
/// <param name="pIDL">子アイテムのITEMIDL。</param>
/// <param name="shParent">親シェルアイテムオブジェクト。</param>
private ShellItem(IntPtr pIDL, ShellItem shParent)
{
// ITEMIDLを連結
m_pIDL = ShellAPI.ILCombine(shParent.PIDL, pIDL);
// 属性などいろいろ初期化する
InitAtr(InitMode.Child, pIDL, shParent.ShellFolder);
// 親 IShellFolder と親からの相対IDLを取得
m_ParentShellFolder = shParent.ShellFolder;
m_pRelativeIDL = pIDL;
}
/// <summary>
/// Checks the type of the special folder.
/// </summary>
/// <param name="parent">The parent.</param>
/// <param name="parentPIDL">The parent PIDL.</param>
/// <param name="pidl">The pidl.</param>
/// <returns></returns>
SpecialFolderType CheckSpecialFolderType(ShellAPI.IShellFolder parent, IntPtr parentPIDL, IntPtr pidl)
{
IntPtr pIDLCombined = ShellAPI.ILCombine(parentPIDL, pidl);
for (int i = 0; i < listSpecialFolders.Count; i++)
{
if (shellRoot.CompareIDs(0, listSpecialFolders[i].PIDL, pIDLCombined) == 0)
{
return(listSpecialFolders[i].FolderType);
}
}
return(SpecialFolderType.None);
}
/// <summary>
/// Constructor. Create a sub-item shell item object.
/// </summary>
/// <param name="shDesktop">IShellFolder interface of the Desktop</param>
/// <param name="pIDL">The fully qualified PIDL for this shell item</param>
/// <param name="shParent">The ShellItem object for this item's parent</param>
public ShellItem(ShellAPI.IShellFolder shDesktop, IntPtr pIDL, ShellItem shParent)
{
// We need the Desktop shell item to exist first.
if (m_bHaveRootShell == false)
{
throw new Exception("The root shell item must be created before creating a sub-item");
}
// Create the FQ PIDL for this new item.
m_pIDL = ShellAPI.ILCombine(shParent.PIDL, pIDL);
// Get the properties of this item.
ShellAPI.SFGAOF uFlags = ShellAPI.SFGAOF.SFGAO_FOLDER | ShellAPI.SFGAOF.SFGAO_HASSUBFOLDER;
// Here we get some basic attributes.
shDesktop.GetAttributesOf(1, out m_pIDL, out uFlags);
IsFolder = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FOLDER);
HasSubFolder = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_HASSUBFOLDER);
// Now we want to get extended attributes such as the icon index etc.
ShellAPI.SHFILEINFO shInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags = //ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_SYSICONINDEX |
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME;
ShellAPI.SHGetFileInfo(m_pIDL, 0, out shInfo, (uint)Marshal.SizeOf(shInfo), vFlags);
DisplayName = shInfo.szDisplayName;
IconIndex = shInfo.iIcon;
Path = GetPath();
// Create the IShellFolder interface for this item.
if (IsFolder)
{
uint hRes = shParent.m_shShellFolder.BindToObject(pIDL, IntPtr.Zero, ref ShellAPI.IID_IShellFolder, out m_shShellFolder);
if (hRes != 0)
{
Marshal.ThrowExceptionForHR((int)hRes);
}
}
//Icon icon = (Icon)Icon.FromHandle(shInfo.hIcon).Clone();
//icon.ToBitmap().Save(shInfo.szDisplayName + ".png");
//User32.DestroyIcon(shInfo.hIcon);
}
/// <summary>
/// コンストラクタ。指定されたパスを指し示すように初期化する。
/// </summary>
/// <param name="path">フルパス名。</param>
public ShellItem(string path)
{
// 指定されたパスを指し示すITEMIDLを取得する
m_pIDL = ShellAPI.ILCreateFromPathW(path);
if (m_pIDL == IntPtr.Zero)
{
throw new Exception(string.Format("{0} は有効なパスではありません。", path));
}
IntPtr parentIdl = IntPtr.Zero;
try
{
// 指定されたパスの親のIDLを取得
parentIdl = ShellAPI.ILClone(m_pIDL);
ShellAPI.ILRemoveLastID(parentIdl);
// 親からの相対IDLを検索
IntPtr relativeIdl = ShellAPI.ILFindLastID(m_pIDL);
// 相対IDLを取得（メモリ解放漏れさせないために即座にメンバ変数へ格納）
m_pRelativeIDL = ShellAPI.ILClone(relativeIdl);
// 指定されたパスの親のIShellFolderを取得
m_ParentShellFolder = ShellAPI.BindToIShellFolder(DesktopShellItem.ShellFolder, parentIdl);
// 属性などいろいろ初期化する
InitAtr(InitMode.Path, m_pRelativeIDL, m_ParentShellFolder);
}
finally
{
if (parentIdl != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(parentIdl);
}
}
}
/// <summary>
/// 属性を初期化する。
/// </summary>
private void InitAtr(InitMode mode, IntPtr pIDL, ShellAPI.IShellFolder parentSf)
{
// 基本的な属性を初期化する
ShellAPI.SFGAOF uFlags = 0;
switch (mode)
{
case InitMode.Desktop:
{
this.IsFolder = true;
this.IsFileSystem = false;
this.HasSubFolder = true;
}
break;
case InitMode.Path:
case InitMode.Child:
{
uFlags =
ShellAPI.SFGAOF.SFGAO_FOLDER |
ShellAPI.SFGAOF.SFGAO_FILESYSTEM |
ShellAPI.SFGAOF.SFGAO_FILESYSANCESTOR;
parentSf.GetAttributesOf(1, out pIDL, out uFlags);
this.IsFolder = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FOLDER);
this.IsFileSystem = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FILESYSTEM);
if (this.IsFolder)
{
// GetAttributesOf で SFGAO_HASSUBFOLDER を調べるとかなり遅くなる、
// そもそも this.HasSubFolder はヒントとして使用するだけなのでフォルダの場合は問答無用で
// this.HasSubFolder に true をセットする
this.HasSubFolder = true;
// このオブジェクト用の IShellFolder インターフェース取得
m_ShellFolder = ShellAPI.BindToIShellFolder(parentSf, pIDL);
}
}
break;
}
// パス名取得
m_Path = ShellAPI.SHGetPathFromIDList(m_pIDL);
// アイコンインデックス番号とかの属性取得
ShellAPI.SHFILEINFO shInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfoW(
m_pIDL,
0,
out shInfo,
(uint)Marshal.SizeOf(shInfo),
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_SYSICONINDEX |
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_TYPENAME
);
m_DisplayName = shInfo.szDisplayName;
m_TypeName = shInfo.szTypeName;
m_iIconIndex = shInfo.iIcon;
// 選択時のアイコンインデックス番号取得
ShellAPI.SHGetFileInfoW(
m_pIDL,
0,
out shInfo,
(uint)Marshal.SizeOf(shInfo),
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_SYSICONINDEX |
ShellAPI.SHGFI.SHGFI_OPENICON
);
m_iSelectedIconIndex = shInfo.iIcon;
// いろいろ調べてアイテム種類(m_ItemType)を確定する
if (this.IsFileSystem)
{
bool bValidated = false;
m_FileName = "";
try
{
m_FileName = System.IO.Path.GetFileName(m_Path);
if (this.IsFolder)
{
if (System.IO.Path.GetPathRoot(m_Path) == m_Path)
{
// パス名とルートパスが同じならドライブのはず
m_ItemType = ShellItemType.Drive;
bValidated = true;
}
else if (Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FILESYSANCESTOR))
{
// ファイルシステムアイテムを含むことができるフォルダ＝ファイルフォルダ（だと思う）
m_ItemType = ShellItemType.Folder;
bValidated = true;
}
}
}
catch
{
// システムのアイテムの場合まともなパス名ではなくて、例外が出ちゃうので
// ここで例外キャッチ
}
if (!bValidated)
{
m_ItemType = ShellItemType.File;
bValidated = true;
}
}
else
{
if (this.IsFolder)
{
m_ItemType = ShellItemType.SpecialFolder;
}
else
{
m_ItemType = ShellItemType.SpecialItem;
}
}
}
/// <summary>
/// Constructor. Create a sub-item shell item object.
/// </summary>
/// <param name="shFolder">IShellFolder interface of the Desktop</param>
/// <param name="pIDL">The fully qualified PIDL for this shell item</param>
/// <param name="shellDesktop">The ShellItem object for desktop</param>
public DataSourceShell(ShellAPI.IShellFolder shellDesktop, IntPtr pIDL, DataSourceShell shellParent, bool hasOnlyFolders, SpecialFolderType folderType)
{
_specialFolderType = folderType;
// We need the Desktop shell item to exist first.
if (haveRootShell == false)
{
throw new Exception("The root shell item must be created before creating a sub-item");
}
// Create the FQ PIDL for this new item.
ptrIDL = ShellAPI.ILCombine(shellParent.PIDL, pIDL);
shellItemPath = GetPath();
// Get the properties of this item.
ShellAPI.SFGAOF uFlags =
ShellAPI.SFGAOF.SFGAO_FOLDER |
//ShellAPI.SFGAOF.SFGAO_HASSUBFOLDER |
ShellAPI.SFGAOF.SFGAO_BROWSABLE |
ShellAPI.SFGAOF.SFGAO_STREAM |
ShellAPI.SFGAOF.SFGAO_LINK |
ShellAPI.SFGAOF.SFGAO_FILESYSTEM |
ShellAPI.SFGAOF.SFGAO_HIDDEN |
ShellAPI.SFGAOF.SFGAO_REMOVABLE
;
// Here we get some basic attributes.
uint result = shellParent.shellFolder.GetAttributesOf(1, ref pIDL, ref uFlags);
isFolder = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FOLDER);
hasSubFolder = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_HASSUBFOLDER);
IsBrowsable = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_BROWSABLE);
IsStream = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_STREAM);
IsLink = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_LINK);
isFileSystem = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_FILESYSTEM);
IsHidden = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_HIDDEN);
IsRemovable = Convert.ToBoolean(uFlags & ShellAPI.SFGAOF.SFGAO_REMOVABLE);
ShellAPI.IShellItem pshellitem;
if (ShellAPI.SHCreateShellItem(IntPtr.Zero, null, PIDL, out pshellitem) == 0)
{
Int32 length = 0;
if (ShellAPI.SHLoadLibraryFromItem(pshellitem, ref length) == 0)
{
_blibrary = true;
}
}
IntPtr parseString = IntPtr.Zero;
pshellitem.GetDisplayName(ShellAPI.SIGDN.SIGDN_DESKTOPABSOLUTEPARSING, out parseString);
this.ParsingName = Marshal.PtrToStringAuto(parseString);
LoadFileInfo(ptrIDL);
// [1/18/2010 jozhang #92129]
//when IsStream and isFolder is true,it means the file is .cab or .zip so isFolder should be changed to false;
if (IsStream && isFolder)
{
isFolder = false; // In case of zip
}
try
{
// Create the IShellFolder interface for this item.
if (IsFolder)
{
result = shellParent.shellFolder.BindToObject(pIDL, IntPtr.Zero, ref ShellAPI.IID_IShellFolder, out shellFolder);
if (result != 0)
{
Marshal.ThrowExceptionForHR((int)result);
}
}
}
catch (Exception ex)
{
LogHelper.Debug("shellParent.shellFolder.BindToObject Failed", ex);
}
}
public DirectoryHelper(ShellAPI.IShellFolder shellFolder, IntPtr pidl)
{
ShellFolder = shellFolder;
_pIDL = pidl;
}
