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DotNet COM Interoperability


Posted Date: 10 Oct 2008    Resource Type: Articles    Category: .NET Framework
Posted By: Palanivel       Member Level: Silver
Rating:     Points: 10



Introduction

I am very glade to share this article with you. This is a simple and useful example for COM interoperability. DOTNET Framework contains lots of components (eg: dll’s).
If we want to use external components this article will guide you better.

Overview

This article explains how to get synonym list for a particular word. To achieve this functionality I just take MS-Office component for my application.

Reference:

Go to Add Reference>COM>Microsoft Word 11.0 Object Library

Note: Word 11.0 version is based on MS-Office version.
10 for MS-Office 2000, 11 for MS-Office 2003 like that.


Form Design

This is windows application so you just design the form with one text box to read string and one Listbox control to display resultant synonyms.

Code Snippet

// Create object for Global Class

Word.GlobalClass gblObj = new GlobalClass();

// Define Language Object

object theLanguage = WdLanguageID.wdEnglishUS;

// Get all the synonym for particular string and store into synLst object

SynonymInfo synLst = gblObj.get_SynonymInfo(strInput, ref theLanguage);

// assign meaning list into object

object meanings = synLst.MeaningList;

// convert object value into array to display value one by one in the Listbox control

Array meaningList = (Array)meanings;
ListViewItem lv;

if (lstBoxSynonyms.Items.Count > 0)
{
lstBoxSynonyms.Items.Clear();
}

foreach (string meaning in meaningList)
{
// MessageBox.Show(meaning);

lv=new ListViewItem(meaning);

lstBoxSynonyms.Items.Add(lv.Text);
}



Conclusion
This sample should help beginners who are develop application using COM interoperability. For this application we no need to go for internet to search the meaning of the word. We can get result for resultant value by clicking the listbox text.



Attachments

  • DesktopDictionary (21736-10329-DesktopDictionary.zip)



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