[C#] Menu contextuel explorer dans mon application

Bonsoir tout le monde,

Depuis quelques semaines, je cherche un moyen d'afficher dans mon application, le menu contextuel de l'explorateur de fichiers.

J'ai trouvé des exemples qui permettent d'ajouter ses propres fonctions dans le menu, mais rien en ce qui consiste l'affichage du menu. Pourtant j'ai déjà vu quelques applications le permettant.

La doc sur msdn n'indique pas grand chose la dessus, alors si quelqu'un à déjà effectué cela et qu'il peut m'aider ou me donner quelques tuyaux,

merci :) :)

mickaël

Je suis pas sûr d'avoir compris ton souci peux-tu illustrer concrètement ton besoin

oui bien sur,

voilà, j'ai développé un explorateur de fichiers alternatif. Je gère mon propre menu contextuel sur les fichiers (avec les options classiques, ouvrir, copier, coller, etc...)

je souhaite pouvoir afficher également le menu contextuel de windows (celui que l'on obtient en faisant clic droit sur un fichier). Ainsi je peux laisser le choix du contextuel à utiliser.

J'ai trouvé pas mal d'infos sur comment ajouter un élément dans le menu contextuel de windows, mais rien sur comment l'afficher.

Je sais qu'il y a des interfaces IContextMenu, IContextMenu2, IContextMenu3...

je rame pas mal, je ne trouve pas vraiment de class qui permettrait ca, tout semble à faire, et ca n'a pas l'air d'être le plus simple :(

voilà :)

Si les menuItems dont tu as besoin sont déjà implementer dans le MainMenu de ton explorateur, tu peux très bien ajouter dans ton ContextMenu les clones de ceux-ci
:arrow: Copie d'éléments des menus vers les menus contextuels

ce que je veux c'est pouvoir afficher le menu contextuel de windows...

pour cela il faut apparement enregistrer un serveur COM, afin de traiter l'affichage, la sélection de l'utilisateur et l'execution de l'action.

Par contre, si l'utilisateur choisit "Play in winamp", cela va appeler une fonction de winamp pour réaliser la lecture avec les éléments sélectionnés.

merci

J'ai trouvé une solution sur un site russe...

je mets le code, si ca interresse quelqu'un. (je l'ai testé sur mon appli, il fonctionne).

Code:

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//--x-x-x-x-x-x-x-x-x-x-x-
private void ListView_MouseUp(object sender, MouseEventArgs e)
{
 ListView lw = (ListView)sender;
 if (lw.GetItemAt(e.X, e.Y) == null)
 {
  lw.FocusedItem.Focused = true;
  lw.FocusedItem.Selected = true; 
 }
 
 Point pt = new Point(e.X, e.Y);
 pt = lw.PointToScreen(pt);
 
 if (e.Button == MouseButtons.Right && lw.GetItemAt(e.X, e.Y) != null)
 {
  string[] strFiles = new string[lw.SelectedItems.Count];
  for (int i = 0; i < strFiles.Length; i++)
 {
  strFiles[i] = lw.SelectedItems[i].Tag.ToString();
 }
 
 SysCntxtMenu.ShowContextMenu(this.Handle, strFiles, pt.X, pt.Y, true);
 }
}

Class gérant l'affichage du menu contextuel de l'explorateur en fonction des fichiers sélectionnés.

Code:

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using System;
using System.Runtime.InteropServices;
using System.IO;
using System.Diagnostics;
 
public class SysCntxtMenu
{
private SysCntxtMenu()
{
//
// All static, no instances
//
}
 
// CreatePopupMenu
[DllImport("user32.dll", EntryPoint="CreatePopupMenu", SetLastError=true, CallingConvention=CallingConvention.StdCall)]
public static extern IntPtr CreatePopupMenu();
 
// MessageBeep
[DllImport("User32", EntryPoint="MessageBeep", SetLastError=true, CallingConvention=CallingConvention.StdCall)]
public static extern bool MessageBeep(int SoundType);
 
// TrackPopupMenu
[DllImport("user32.dll", EntryPoint="TrackPopupMenu", SetLastError=true, CallingConvention=CallingConvention.StdCall)]
public static extern int TrackPopupMenu(IntPtr hMenu, int wFlags, int x, int y, int nReserved, IntPtr hwnd, out Rect lprc);
 
// SHGetDesktopFolder
[DllImport("shell32.dll", EntryPoint="SHGetDesktopFolder", SetLastError=true, CallingConvention=CallingConvention.StdCall)]
static extern void SHGetDesktopFolder(ref IShellFolder sf);
 
public const int MIN_SHELL_ID = 1;
public const int MAX_SHELL_ID = 0x7FFF;
//
public const int TPM_RETURNCMD = 0x100;
public const int TPM_LEFTALIGN = 0x0;
//
public const int SW_SHOWNORMAL = 1;
 
static int m_pidlCount = 0;
static IntPtr[] m_ipList;
 
public static int MAKEINTRESOURCE(int res)
{
return 0x0000FFFF & res;
}
 
public static int ShowContextMenu(IntPtr hwnd, string[] strFiles, int intX, int intY, bool blnErrorBeep)
{
CMINVOKECOMMANDINFO CI = new CMINVOKECOMMANDINFO();
 
DirectoryInfo dInfo;
 
FileInfo fInfo;
 
IContextMenu CM; // LPCONTEXTMENU
 
int cmdID; // LongBool
int pchEaten = 0; // DWORD pchEaten;
int dwAttributes = new int(); // ULONG
int intZero = 0;
int intCount;
 
IntPtr ipParent = new IntPtr(); // LPITEMIDLIST
IntPtr ipChild = new IntPtr(); // LPITEMIDLIST
IntPtr hMenu = new IntPtr(); // HMENU
IntPtr ipPath = new IntPtr();
IntPtr ipFileName = new IntPtr();
 
IShellFolder DesktopFolder = null; // IShellFolder
IShellFolder ParentFolder = null; // IShellfolder ParentFolder
 
Rect mRect;
 
REFIID IID_IShellFolder = new REFIID("000214E6-0000-0000-c000-000000000046");
REFIID IID_IContextMenu = new REFIID("000214E4-0000-0000-c000-000000000046");
 
string strFullName = "";
string strFilePath = "";
string strFileName = "";
string strFQName = "";
 
m_pidlCount = 0;
 
for(intCount = 0; intCount <= strFiles.GetUpperBound(0); intCount++)
{
strFullName = strFiles[intCount];
 
fInfo = new FileInfo(strFullName);
 
if(fInfo.Exists)
{
strFilePath = fInfo.DirectoryName;
strFileName = fInfo.Name;
strFQName = fInfo.FullName;
}
else
{
dInfo = new DirectoryInfo(strFullName);
if(dInfo.Exists)
{
try
{
strFileName = dInfo.Name;
strFilePath = dInfo.Parent.FullName;
 
}
catch
{
strFilePath = "";
}
}
}
 
SHGetDesktopFolder(ref DesktopFolder);
 
// ParseDisplayName - parent
// Translates a file object's or folder's display name into an item identifier list
pchEaten = 1;
dwAttributes = 0;
ipParent = new IntPtr();
DesktopFolder.ParseDisplayName(hwnd, IntPtr.Zero, strFilePath, ref pchEaten, ref ipParent, ref dwAttributes);
 
// BindToObject
// Retrieves an IShellFolder object for a subfolder
ParentFolder = null;
DesktopFolder.BindToObject(ipParent, IntPtr.Zero, ref IID_IShellFolder, ref ParentFolder);
 
// ParseDisplayName - child
// Translates a file object's or folder's display name into an item identifier list
pchEaten = 1;
dwAttributes = 0;
ipChild = new IntPtr();
ParentFolder.ParseDisplayName(hwnd, IntPtr.Zero, strFileName, ref pchEaten, ref ipChild, ref dwAttributes);
 
JAddItemToIDList(ipChild);
}
 
CM = null;
 
int intReturn = ParentFolder.GetUIObjectOf(hwnd, m_pidlCount, ref m_ipList[0], ref IID_IContextMenu, out intZero, ref CM);
 
if(CM != null)
{
hMenu = CreatePopupMenu();
 
CM.QueryContextMenu(hMenu, 0, MIN_SHELL_ID, MAX_SHELL_ID, QueryContextMenuFlags.CMF_EXPLORE);
 
cmdID = TrackPopupMenu(hMenu, (TPM_RETURNCMD | TPM_LEFTALIGN), intX, intY, 0, hwnd, out mRect);
 
if (cmdID != 0)
{
CI.cbSize = Marshal.SizeOf(CI);
CI.hwnd = hwnd;
CI.lpVerb = (IntPtr)MAKEINTRESOURCE(cmdID - 1);
CI.lpParameters = IntPtr.Zero;
CI.lpDirectory = IntPtr.Zero;
CI.nShow = SW_SHOWNORMAL;
CM.InvokeCommand(ref CI);
}
}
else
{
if(blnErrorBeep)
MessageBeep(-1);
}
return 0;
}
 
private static void JAddItemToIDList(IntPtr ipNew)
{
if(m_pidlCount == 0)
{
m_ipList = new IntPtr[1];
m_ipList[0] = ipNew;
m_pidlCount++;
return;
}
 
int intCount;
IntPtr[] ipTemp = new IntPtr[m_pidlCount];
 
for(intCount = 0; intCount < m_pidlCount; intCount++)
ipTemp[intCount] = m_ipList[intCount];
 
m_ipList = new IntPtr[m_pidlCount + 1];
 
for(intCount = 0; intCount < m_pidlCount; intCount++)
m_ipList[intCount] = ipTemp[intCount];
 
m_ipList[intCount] = ipNew;
m_pidlCount++;
}
}
 
[ComImport, Guid("00000000-0000-0000-c000-000000000046")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IUnknown
{
[PreserveSig]
IntPtr QueryInterface(REFIID riid, out IntPtr pVoid);
 
[PreserveSig]
IntPtr AddRef();
 
[PreserveSig]
IntPtr Release();
}
 
public struct Rect
{
public int left;
public int top;
public int right;
public int bottom;
 
public int Width
{
get
{
return right - left;
}
}
 
public int Height
{
get
{
return bottom - top;
}
}
}
 
[ComImport, Guid("000214E6-0000-0000-c000-000000000046")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IShellFolder
{
[PreserveSig]
int ParseDisplayName(IntPtr hwnd, IntPtr pbc, string pszDisplayName, ref int pchEaten, ref IntPtr ppidl, ref int pdwAttributes);
 
[PreserveSig]
int EnumObjects(IntPtr hWnd, ShellEnumFlags flags, ref IEnumIDList enumList);
 
[PreserveSig]
int BindToObject(IntPtr idList, IntPtr bindingContext, ref REFIID refiid, ref IShellFolder folder);
 
[PreserveSig]
int BindToStorage(ref IntPtr idList, IntPtr bindingContext, ref REFIID riid, IntPtr pVoid);
 
[PreserveSig]
int CompareIDs(int lparam, IntPtr idList1, IntPtr idList2);
 
[PreserveSig]
int CreateViewObject(IntPtr hWnd, REFIID riid, IntPtr pVoid);
 
[PreserveSig]
int GetAttributesOf(int count, ref IntPtr idList, out GetAttributeOfFlags attributes);
 
[PreserveSig]
int GetUIObjectOf(IntPtr hwnd, int cidl, ref IntPtr apidl, ref REFIID riid, out int rgfReserved, ref IContextMenu ppv);
 
[PreserveSig]
int GetDisplayNameOf(IntPtr idList, ShellGetDisplayNameOfFlags flags, ref STRRET strRet);
 
[PreserveSig]
int SetNameOf(IntPtr hWnd, ref IntPtr idList, IntPtr pOLEString, int flags, ref IntPtr pItemIDList);
 
}
 
[ComImport, Guid("000214f2-0000-0000-c000-000000000046")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IEnumIDList
{
[PreserveSig]
int Next(int count, ref IntPtr idList, out int fetched);
 
[PreserveSig]
int Skip(int count);
 
[PreserveSig]
int Reset();
 
[PreserveSig]
int Clone(ref IEnumIDList list);
}
 
[ComImport, Guid("000214e4-0000-0000-c000-000000000046")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IContextMenu
{
[PreserveSig]
int QueryContextMenu(IntPtr hMenu, int indexMenu, int idFirstCommand, int idLastCommand, QueryContextMenuFlags flags);
 
[PreserveSig]
int InvokeCommand(ref CMINVOKECOMMANDINFO ici);
 
[PreserveSig]
int GetCommandString(int idCommand, int type, int reserved, string commandName, int cchMax);
}
 
[StructLayout(LayoutKind.Sequential)]
public struct REFIID
{
public int x;
public short s1;
public short s2;
[MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst=8)]
public byte[] chars;
 
public REFIID(string guid)
{
// Needs to be a string of the form:
// "000214E6-0000-0000-c000-000000000046"
string[] data = guid.Split('-');
Debug.Assert(data.Length == 5);
x = Convert.ToInt32(data[0], 16);
s1 = Convert.ToInt16(data[1], 16);
s2 = Convert.ToInt16(data[2], 16);
string bytesData = data[3] + data[4];
chars = new byte[] { Convert.ToByte(bytesData.Substring(0,2), 16), Convert.ToByte(bytesData.Substring(2,2), 16),
Convert.ToByte(bytesData.Substring(4,2), 16), Convert.ToByte(bytesData.Substring(6,2), 16),
Convert.ToByte(bytesData.Substring(8,2), 16), Convert.ToByte(bytesData.Substring(10,2), 16),
Convert.ToByte(bytesData.Substring(12,2), 16), Convert.ToByte(bytesData.Substring(14,2), 16) };
}
 
}
 
 
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
public struct STRRET
{
public STRRETFlags uType; // One of the STRRET values
[MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst=1024)]
public byte[] cStr;
}
 
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
public struct CMINVOKECOMMANDINFO
{
public int cbSize; // sizeof(CMINVOKECOMMANDINFO)
public int fMask; // any combination of CMIC_MASK_*
public IntPtr hwnd; // might be NULL (indicating no owner window)
public IntPtr lpVerb; // either a string or MAKEINTRESOURCE(idOffset)
public IntPtr lpParameters; // might be NULL (indicating no parameter)
public IntPtr lpDirectory; // might be NULL (indicating no specific directory)
public int nShow; // one of SW_ values for ShowWindow() API
public int dwHotKey;
public IntPtr hIcon;
}
 
 
[StructLayout(LayoutKind.Sequential)]
public struct SHITEMID
{
public short cb;
[MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst=1)]
public byte[] abID;
}
 
[StructLayout(LayoutKind.Sequential)]
public struct ITEMIDLIST
{
public SHITEMID mkid;
}
 
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
public struct POINT
{
public int x;
public int y;
};
 
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;
}
 
// Enums
[Flags]
public enum ShellEnumFlags
{
SHCONTF_FOLDERS = 32, // for shell browser
SHCONTF_NONFOLDERS = 64, // for default view
SHCONTF_INCLUDEHIDDEN = 128, // for hidden/system objects
}
 
[Flags]
public enum ShellGetDisplayNameOfFlags
{
SHGDN_NORMAL = 0, // default (display purpose)
SHGDN_INFOLDER = 1, // displayed under a folder (relative)
SHGDN_INCLUDE_NONFILESYS = 0x2000, // if not set, display names for shell name space items that are not in the file system will fail.
SHGDN_FORADDRESSBAR = 0x4000, // for displaying in the address (drives dropdown) bar
SHGDN_FORPARSING = 0x8000, // for ParseDisplayName or path
}
 
[Flags]
public enum STRRETFlags
{
STRRET_WSTR = 0x0000, // Use STRRET.pOleStr
STRRET_OFFSET = 0x0001, // Use STRRET.uOffset to Ansi
STRRET_CSTR = 0x0002 // Use STRRET.cStr
}
 
[Flags]
public enum GetAttributeOfFlags : long
{
DROPEFFECT_NONE = 0,
DROPEFFECT_COPY = 1,
DROPEFFECT_MOVE = 2,
DROPEFFECT_LINK = 4,
DROPEFFECT_SCROLL = 0x80000000,
SFGAO_CANCOPY = DROPEFFECT_COPY, // Objects can be copied
SFGAO_CANMOVE = DROPEFFECT_MOVE, // Objects can be moved
SFGAO_CANLINK = DROPEFFECT_LINK, // Objects can be linked
SFGAO_CANRENAME = 0x00000010, // Objects can be renamed
SFGAO_CANDELETE = 0x00000020, // Objects can be deleted
SFGAO_HASPROPSHEET = 0x00000040, // Objects have property sheets
SFGAO_DROPTARGET = 0x00000100, // Objects are drop target
SFGAO_CAPABILITYMASK = 0x00000177,
SFGAO_LINK = 0x00010000, // Shortcut (link)
SFGAO_SHARE = 0x00020000, // shared
SFGAO_READONLY = 0x00040000, // read-only
SFGAO_GHOSTED = 0x00080000, // ghosted icon
SFGAO_HIDDEN = 0x00080000, // hidden object
SFGAO_DISPLAYATTRMASK = 0x000F0000,
SFGAO_FILESYSANCESTOR = 0x10000000, // It contains file system folder
SFGAO_FOLDER = 0x20000000, // It's a folder.
SFGAO_FILESYSTEM = 0x40000000, // is a file system thing (file/folder/root)
SFGAO_HASSUBFOLDER = 0x80000000, // Expandable in the map pane
SFGAO_CONTENTSMASK = 0x80000000,
SFGAO_VALIDATE = 0x01000000, // invalidate cached information
SFGAO_REMOVABLE = 0x02000000, // is this removeable media?
SFGAO_COMPRESSED = 0x04000000, // Object is compressed (use alt color)
SFGAO_BROWSABLE = 0x08000000, // is in-place browsable
SFGAO_NONENUMERATED = 0x00100000, // is a non-enumerated object
SFGAO_NEWCONTENT = 0x00200000 // should show bold in explorer tree
}
 
public enum QueryContextMenuFlags : long
{
CMF_NORMAL = 0x00000000,
CMF_DEFAULTONLY = 0x00000001,
CMF_VERBSONLY = 0x00000002,
CMF_EXPLORE = 0x00000004,
CMF_NOVERBS = 0x00000008,
CMF_CANRENAME = 0x00000010,
CMF_NODEFAULT = 0x00000020,
CMF_INCLUDESTATIC = 0x00000040,
CMF_RESERVED = 0xffff0000
}
//------------------------------------

voilà c'est résolu :)

mickaël