C#

int IContextMenu.QueryContextMenu(uint hmenu,
              uint iMenu,
              int idCmdFirst,
              int idCmdLast,
              uint uFlags)
            {

                //Clicked file
                StringBuilder sb = new StringBuilder(1024);
                DllImports.DragQueryFile(m_hDrop, 0, sb, sb.Capacity + 1);

                //If it's a link (*.lnk) exits
                //Maybe the mistake is here, but I don't know!
                if (new FileInfo(sb.ToString()).Extension == ".lnk") { return 1; }

                // Adds the menus
                for (int i = 0; i < Menus.Length; i++)
                {

                    //Updates the ID
                    Menus[i].MenuItemInfo.wID += idCmdFirst;

                    //Verifies if the menu has some submenus
                    if (Menus[i].SubMenu != null) { PopolateSubMenu(Menus[i], idCmdFirst); }

                    //Adds the menu
                    DllImports.InsertMenuItem(hmenu, Menus[i].Position - 1, 1, ref Menus[i].MenuItemInfo);

                    //Adds the icon
                    if (Menus[i].Image != null) {
                        System.Drawing.Bitmap Bmp = Menus[i].Image;
                        DllImports.SetMenuItemBitmaps((IntPtr)hmenu, (IntPtr)(Menus[i].Position - 1), 0x400, Bmp.GetHbitmap(), Bmp.GetHbitmap());
                    }

                }

                // Returns the number of added menu item
                return (int)(NumeroMenu + 1);

            }

<br />
        public void SetProperty(String Path, String Value)<br />
        {<br />
			if (!this.Dispatcher.CheckAccess())<br />
			{<br />
                                Exception exception = null;<br />
				this.Dispatcher.Invoke((Action<String, String>)((path, val) => { <br />
                    <br />
                    try<br />
                    {<br />
                        SetProperty(path, val); // throws an exception<br />
                    }<br />
                    catch (System.Exception e)<br />
                    {<br />
                        exception = e;<br />
                    }<br />
                }), Path, Value, exception);<br />
                if(exception != null){<br />
                    MessageBox.Show(exception.Message);<br />
                }<br />

	public class CReadCDD
	{
		//Fields
    	private CProcessXMLdoc mdoc;
    	private string mFileName;
    	public  RichTextBox pRichTextBox1 {get; set;}
    	
    	//private Form1 myForm;

    	// Declare the event using EventHandler<T>
        public event EventHandler<CCustomEventArgs> RaiseCustomEvent;

        protected void pOnRaiseCustomEvent(CCustomEventArgs pEv)
        {
        	EventHandler<CCustomEventArgs> handler = RaiseCustomEvent;
			
        	// Event will be null if there are no subscribers
            if (handler != null)
                handler(this, pEv);
        }

		
        public CReadCDD(string pFileName, Form1 pForm)
    	{
       	//mDelSetText= mSetText;
       	
    	mFileName= 	pFileName;   	
    	//myForm= pForm;
    	}
 
    	    	
        #region Worker Threads
        public void mLoadXmlOnHeap_WorkThread()
        {
        	mdoc = new CProcessXMLdoc(mFileName);
        	
        	CCustomEventArgs evObj= new CCustomEventArgs("Load The XML Data from Cdd file on the HEAP\n");
        	
        	pOnRaiseCustomEvent(evObj);
        }
		
		// ......................................
	}


namespace CddToCaplDiagnosticTestsGenerator
{
    public partial class Form1 : Form
    {
    
        private CReadCDD objReadCdd;   
        public delegate void DelegateTypePrntText(string text);
        public DelegateTypePrntText mdelT;	
          	
    	public Form1()
        {
    		mdelT = new DelegateTypePrntText(mSetTextToRichTextControl);
    		InitializeComponent();
        }
    	
    	// Define what actions to take when the event is raised.
    	void mfHandleCustomEvent_PrintRichTextConsole(object sender, CCustomEventArgs e)
    	{
    		byte debug=0;
    		
    		string text = e.pTextBox;
    		// Check if this method is running on a different thread
    		// than the thread that created the control.
    		
    		if (this.richTextBox1.InvokeRequired)
    		{
    			// It's on a different thread, so use Invoke.
    			this.Invoke (mdelT, new object[] { text + " (Invoke)" });
    		}
    		else // It's on the same thread, no need for Invoke
    			richTextBox1.AppendText("No Invoke");
    	}
        
        void mSetTextToRichTextControl(string pText)
        {
        	richTextBox1.AppendText("Inner thread");
        }

    	   	    
        private void openToolStripMenuItem_Click(object sender, EventArgs e)
        {
           // Stream myStream = null;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            openFileDialog1.InitialDirectory = "c:\\";
            openFileDialog1.Filter = "Cdd files (*.cdd)|*.cdd";
            openFileDialog1.FilterIndex = 2;
            openFileDialog1.RestoreDirectory = true;

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {

                string filename = openFileDialog1.FileName;

                try
                {
                	objReadCdd= new CReadCDD(filename, this);
                	
                	objReadCdd.RaiseCustomEvent += mfHandleCustomEvent_PrintRichTextConsole;
                	
                	#region LoadXMLinMemory
                	objReadCdd.pRichTextBox1= richTextBox1;
                    
					Thread thrdLoadXmlOnHeap = new Thread(objReadCdd.mLoadXmlOnHeap_WorkThread);
					thrdLoadXmlOnHeap.Start();
					
					//richTextBox1.AppendText("Load The XML Data from Cdd file on the HEAP\n");
					
					thrdLoadXmlOnHeap.Join();
					#endregion
					
					#region Load Data in the CData tree
				//	Thread thrdLoadOnCDataTree = new Thread(objReadCdd.mLoadOnCDataTree_WorkThread);
				//	thrdLoadOnCDataTree.Start();
					
				//	richTextBox1.AppendText("End loading XML data in CData Tree\n");
					#endregion
  

                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
                }
            }

        }
        
    }
}
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