Problem about Instances...

Hii..Frends this is very genuine problem.
Functionality :-When i was developing Window Explorer control for my application then i just stuck in a problem I had three instances of window - explorer.. One is as similar as Window file explorer by which you can drag drop files and that will open in any editor.(We had given additional functionality like to show INF,INI,BAK and ORG files) and other two are as same as Window File - Folder Explorer like in left hand side Folder Explorer(TreeView) and Right hand side ListView which shows all the files with size,Modified date and type of file.and you can sort using coloumn click.(Like Window File detail view in windows) and the third one which is just below of this one has same feature but the root node of this tree will be a path where ever we want to show we said this is destination view and above one is source view .You can drag files from Source listView to Destination TreeView and ListView both and that will copy the whole directory at that path physically and You can add folder from source treeview to destination treeView and we can move folder and files from destination listView to destination treeview.We given the special functionality like we can add new folder,delete the folder and rename the folder.That all the features we have given in all the controls.

Problem:-I have only one control with three instances if i m doing some changes from application and rename and bla bla..n all the tree view has opened a same path then i want to make all the controls as real time like if we add a folder of some path then in all the controls will be the same...So i need some notification then i know the methods about shell if we add , delete and rename from shell then shell will send a notification to application and then WndProc method will send the notification to all the instances and to invoke shell methods i have already make a post related to How to Copy,Delete,Rename from Shell.

If you add delete , add folder,media and other devices and rename and all other changes then how system invokes the message and will reflect real time.

Enjoy the Code..

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How to Copy,Delete,Rename and Move files and create new directory using Shell32 in C#?

#region Enum
public enum FileOp
{
Move = 0x0001,
Copy = 0x0002,
Delete = 0x0003,
Rename = 0x0004
}

[Flags]
public enum FileOpFlags
{
MultiDestFiles = 0x0001,
ConfirmMouse = 0x0002,
Silent = 0x0004,
RenameCollision = 0x0008,
NoConfirmation = 0x0010,
WantMappingHandle = 0x0020,
AllowUndo = 0x0040,
FilesOnly = 0x0080,
SimpleProgress = 0x0100,
NoConfirmMkDir = 0x0200,
NoErrorUI = 0x0400,
NoCopySecurityAttributes = 0x0800,
NoRecursion = 0x1000,
NoConnectedElements = 0x2000,
WantNukeWarning = 0x4000,
NoRecursiveReparse = 0x8000
}

#endregion

#region Structure
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 1)]
public struct SHFILEOPSTRUCT
{
public IntPtr hwnd;
[MarshalAs(UnmanagedType.U4)]
public int wFunc;
public string pFrom;
public string pTo;
public short fFlags;
[MarshalAs(UnmanagedType.Bool)]
public bool fAnyOperationsAborted;
public IntPtr hNameMappings;
public string lpszProgressTitle;
}
#endregion

Import a shell method to copy file from one location to another,delete file,copy file and rename files and folders.
[DllImport("shell32.dll", CharSet = CharSet.Auto)]
public static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);

Import a shell method to create a new directory.
[DllImport("shell32.dll")]
public static extern int SHCreateDirectoryEx(IntPtr hwnd, string pszPath, IntPtr psa);

To create a new folder :
private const string NULL_STRING = "\0";
newFolderPath is the path where you want to create your directory.
SHCreateDirectoryEx(this.Handle, newFolderPath + NULL_STRING, IntPtr.Zero);

To do all the file operation like move , copy ,delete and rename :-
public bool FileOperation(string sourceFileName, string destinationFileName, FileOp fileOp)
{
bool success = true;
try
{
SHFILEOPSTRUCT shf = new SHFILEOPSTRUCT();
shf.wFunc = (int)fileOp;
shf.fFlags = (short)FileOpFlags.AllowUndo | (short)FileOpFlags.NoConfirmation;
if(!string.IsNullOrEmpty(sourceFileName))
{
shf.pFrom = sourceFileName + NULL_STRING;
}
if(!string.IsNullOrEmpty(destinationFileName))
{
shf.pTo = destinationFileName + NULL_STRING;
}
int result = SHFileOperation(ref shf);

if (result != 0)
{
success = false;
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, Application.ProductName, MessageBoxButtons.OK);
}
return success;
}

How to call this method :-
To Delete the file or folder.
FileOperation(newFolderPath, string.Empty, FileOp.Delete);

To Copy the File or Folder.
FileOperation(sourcePath, destinationPath, FileOp.Move);

To Rename the file or Folder.
FileOperation(sourcePath, destinationPath, FileOp.Rename);

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