/// <summary>
/// 指定されたパスのアイコンを取得する
/// </summary>
/// <param name="path">アイコン取得対象のパス</param>
/// <param name="size">
/// 取得するアイコンのサイズ
/// </param>
/// <param name="isExist">
/// ファイルが実在する場合だけアイコンを取得する場合 true、実在しなくても拡張子から取得する場合 false
/// </param>
/// <returns>取得されたアイコンをIconクラスで返す</returns>
public static Icon GetFileAssociatedIcon(string path, EIconSize size, bool isExist)
{
SHFILEINFO fileInfo = new SHFILEINFO();
uint flags = Shell32Wrapper.SHGFI_ICON;
if (size == EIconSize.Small)
{
flags |= Shell32Wrapper.SHGFI_SMALLICON;
}
if (!isExist)
{
flags |= Shell32Wrapper.SHGFI_USEFILEATTRIBUTES;
}
try
{
// アイコンの取得
Shell32Wrapper.SHGetFileInfo(path, 0, ref fileInfo, (uint)Marshal.SizeOf(fileInfo), flags);
if (fileInfo.hIcon == IntPtr.Zero)
{
return(null);
}
else
{
var unmanagedIcon = Icon.FromHandle(fileInfo.hIcon);
return(new Icon(unmanagedIcon, unmanagedIcon.Size)); // unmanagedIconは破棄されるのでManagedで新しく作成する
}
}
finally
{
if (fileInfo.hIcon != IntPtr.Zero)
{
User32Wrapper.DestroyIcon(fileInfo.hIcon);
}
}
}
/// <summary>
/// 指定した特殊フォルダのアイコンイメージを取得する
/// </summary>
/// <param name="targetFolder">アイコンイメージ取得対象の特殊フォルダを指すenum</param>
/// <param name="size">
/// 取得するアイコンのサイズ
/// </param>
/// <returns>取得されたアイコンをIconクラスで返す</returns>
public static Icon GetSpecialFolderAssociatedImage(SpecialFolderID targetFolder, EIconSize size)
{
uint flags = Shell32Wrapper.SHGFI_ICON | Shell32Wrapper.SHGFI_PIDL;
if (size == EIconSize.Small)
{
flags |= Shell32Wrapper.SHGFI_SMALLICON;
}
SHFILEINFO fileInfo = new SHFILEINFO();
IntPtr pidlRoot = IntPtr.Zero;
try
{
// 特殊フォルダのpIDLを取得
Shell32Wrapper.SHGetSpecialFolderLocation(IntPtr.Zero, (int)targetFolder, out pidlRoot);
// アイコンの取得
Shell32Wrapper.SHGetFileInfo(pidlRoot, 0, ref fileInfo, (uint)Marshal.SizeOf(fileInfo), flags);
if (fileInfo.hIcon == IntPtr.Zero)
{
return(null);
}
else
{
var unmanagedIcon = Icon.FromHandle(fileInfo.hIcon);
return(new Icon(unmanagedIcon, unmanagedIcon.Size)); // unmanagedIconは破棄されるのでManagedで新しく作成する
}
}
finally
{
if (fileInfo.hIcon != IntPtr.Zero)
{
User32Wrapper.DestroyIcon(fileInfo.hIcon);
}
// pidlを解放する。
if (pidlRoot != IntPtr.Zero)
{
IMalloc malloc = GetSHMalloc();
malloc.Free(pidlRoot);
}
}
}
private static void ShowContextMenuFolder(IntPtr handle, IShellFolder desktop, string parent, List <FileSystemInfo> lst, double x, double y,
ref IContextMenu2 FolderContextMenu, ref IntPtr FolderContextPtr)
{
IntPtr PopupPtr = IntPtr.Zero;
IntPtr newContextMenuPtr = IntPtr.Zero, newContextMenuPtr2 = IntPtr.Zero;
IContextMenu newContextMenu = null;
IntPtr PIDLParent = IntPtr.Zero;
try
{
uint fcharcnt = 0;
SFGAO fattr = SFGAO.BROWSABLE;
//親フォルダのパス文字列からPIDLを取得
desktop.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, parent, ref fcharcnt, out PIDLParent, ref fattr);
//メニューを作成
PopupPtr = User32Wrapper.CreatePopupMenu();
#region gomi
//コンテキストメニューに項目追加
//不必要なのでやらない
//viewSubMenu = User32Wrapper.CreatePopupMenu();
//MENUITEMINFO itemInfo = new MENUITEMINFO("View");
//itemInfo.cbSize = Shell32Wrapper.cbMenuItemInfo;
//itemInfo.fMask = MIIM.SUBMENU | MIIM.STRING;
//itemInfo.hSubMenu = viewSubMenu;
//User32Wrapper.InsertMenuItem(PopupPtr, 0, true, ref itemInfo);
//MFT rCheck = MFT.RADIOCHECK | MFT.CHECKED;
//User32Wrapper.AppendMenu(viewSubMenu,
// rCheck, (uint)0, "Tiles");
//User32Wrapper.AppendMenu(viewSubMenu,
// rCheck, (uint)1, "Icons");
//User32Wrapper.AppendMenu(viewSubMenu,
// rCheck, (uint)2, "List");
//User32Wrapper.AppendMenu(viewSubMenu,
// rCheck, (uint)3, "Details");
#endregion
#region New Submenu
//IContextMenuを作成する
if (GetNewContextMenu(PIDLParent, out newContextMenuPtr, out newContextMenu))
{
//セパレータ
//User32Wrapper.AppendMenu(PopupPtr, MFT.SEPARATOR, 0, string.Empty);
//作成したIContextMenuをメニュー（ここではcontextMenu）に追加する
newContextMenu.QueryContextMenu(PopupPtr, 0, Shell32Wrapper.CMD_FIRST, Shell32Wrapper.CMD_LAST, CMF.NORMAL);
//サブメニューを取得（ここでは追加したIContextMenu?
//WndProcで使用される
FolderContextPtr = User32Wrapper.GetSubMenu(PopupPtr, 0);
Marshal.QueryInterface(newContextMenuPtr, ref GUIDs.IID_IContextMenu2, out newContextMenuPtr2);
FolderContextMenu = (IContextMenu2)Marshal.GetTypedObjectForIUnknown(newContextMenuPtr2, typeof(IContextMenu2));
}
#endregion
uint selected = User32Wrapper.TrackPopupMenuEx(PopupPtr, TPM.RETURNCMD, (int)x, (int)y, handle, IntPtr.Zero);
if (selected >= Shell32Wrapper.CMD_FIRST)
{
uint cmdidx = selected - Shell32Wrapper.CMD_FIRST;
Helper.InvokeCommand(newContextMenu, cmdidx, parent, new Point(x, y));
}
}
#region finally
finally
{
if (PopupPtr != IntPtr.Zero)
{
User32Wrapper.DestroyMenu(PopupPtr);
}
if (newContextMenuPtr != IntPtr.Zero)
{
Marshal.Release(newContextMenuPtr);
newContextMenuPtr = IntPtr.Zero;
}
if (newContextMenuPtr2 != IntPtr.Zero)
{
Marshal.Release(newContextMenuPtr2);
newContextMenuPtr2 = IntPtr.Zero;
}
if (newContextMenu != null)
{
Marshal.FinalReleaseComObject(newContextMenu);
newContextMenu = null;
}
if (FolderContextMenu != null)
{
Marshal.FinalReleaseComObject(FolderContextMenu);
FolderContextMenu = null;
}
}
#endregion
}
public static void ShowContextMenu(IntPtr handle, IShellFolder desktop, string parent, List <FileSystemInfo> lst, double x, double y, ref IContextMenu2 newContextMenu2, ref IntPtr newSubmenuPtr)
{
if (lst == null)
{
ShowContextMenuFolder(handle, desktop, parent, lst, x, y, ref newContextMenu2, ref newSubmenuPtr);
return;
}
IntPtr PPopup = IntPtr.Zero, PIDLParent = IntPtr.Zero, PSHParent = IntPtr.Zero;
IntPtr PContext = IntPtr.Zero, PContext2 = IntPtr.Zero, PContext3 = IntPtr.Zero;
List <IntPtr> ChildrenList = null;
IContextMenu CContext = null;
IContextMenu2 CContext2 = null;
IContextMenu3 CContext3 = null;
IShellFolder SHParent = null;
try
{
//親フォルダの PIDL を取得する
uint fcharcnt = 0;
SFGAO fattr = SFGAO.BROWSABLE;
if (desktop.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, parent, ref fcharcnt, out PIDLParent, ref fattr) == Shell32Wrapper.S_OK)
{
//親フォルダのシェルフォルダのポインタを取得する
if (desktop.BindToObject(PIDLParent, IntPtr.Zero, GUIDs.IID_IShellFolder, out PSHParent) == Shell32Wrapper.S_OK)
{
//親フォルダのIShellFolder を取得する
SHParent = (IShellFolder)Marshal.GetTypedObjectForIUnknown(PSHParent, typeof(IShellFolder));
ChildrenList = new List <IntPtr>();
//対象ファイルの PIDL (親のシェルフォルダからの相対 PIDL)を取得する
foreach (var files in lst)
{
IntPtr PFile;
if (SHParent.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, files.Name, ref fcharcnt, out PFile, ref fattr) == Shell32Wrapper.S_OK)
{
ChildrenList.Add(PFile);
}
}
//対象ファイルの IContextMenu へのポインタを取得する
IntPtr[] children = ChildrenList.ToArray();
if (SHParent.GetUIObjectOf(IntPtr.Zero, (uint)children.Length, children, GUIDs.IID_IContextMenu, IntPtr.Zero, out PContext) == Shell32Wrapper.S_OK)
{
//対象ファイルの IContextMenu を取得する
CContext = (IContextMenu)Marshal.GetTypedObjectForIUnknown(PContext, typeof(IContextMenu));
//対象ファイルの IContextMenu2, IContextMenu3 のポインタを取得する
Marshal.QueryInterface(PContext, ref GUIDs.IID_IContextMenu2, out PContext2);
Marshal.QueryInterface(PContext, ref GUIDs.IID_IContextMenu3, out PContext3);
CContext2 = (IContextMenu2)Marshal.GetTypedObjectForIUnknown(PContext2, typeof(IContextMenu2));
CContext3 = (IContextMenu3)Marshal.GetTypedObjectForIUnknown(PContext3, typeof(IContextMenu3));
//ポップアップメニューを作成する
PPopup = User32Wrapper.CreatePopupMenu();
//ポップアップメニューに、コンテキストメニュー IContextMenu を追加する
CMF ContextMenuFlag = CMF.EXPLORE | CMF.CANRENAME;
CContext.QueryContextMenu(PPopup, 0, Shell32Wrapper.CMD_FIRST, Shell32Wrapper.CMD_LAST, ContextMenuFlag);
//ポップアップメニューを表示する
//呼び出しをブロックします
uint selected = User32Wrapper.TrackPopupMenuEx(PPopup, TPM.RETURNCMD, (int)x, (int)y, handle, IntPtr.Zero);
if (selected >= Shell32Wrapper.CMD_FIRST)
{
uint cmdidx = selected - Shell32Wrapper.CMD_FIRST;
Helper.InvokeCommand(CContext, cmdidx, parent, new Point(x, y));
}
}
}
}
}
#region finally
finally
{
if (PPopup != null)
{
User32Wrapper.DestroyMenu(PPopup);
}
if (CContext3 != null)
{
Marshal.FinalReleaseComObject(CContext3);
CContext3 = null;
}
if (CContext2 != null)
{
Marshal.FinalReleaseComObject(CContext2);
CContext2 = null;
}
if (CContext != null)
{
Marshal.FinalReleaseComObject(CContext);
CContext = null;
}
if (ChildrenList != null)
{
foreach (var child in ChildrenList)
{
Marshal.FreeCoTaskMem(child);
}
ChildrenList = null;
}
if (SHParent != null)
{
Marshal.FinalReleaseComObject(SHParent);
SHParent = null;
}
if (PIDLParent != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(PIDLParent);
}
if (PSHParent != IntPtr.Zero)
{
Marshal.Release(PSHParent);
}
if (PContext != IntPtr.Zero)
{
Marshal.Release(PContext);
}
if (PContext2 != IntPtr.Zero)
{
Marshal.Release(PContext2);
}
if (PContext3 != IntPtr.Zero)
{
Marshal.Release(PContext3);
}
}
#endregion
}
