com inteface appears in the scenario of front end and back end.for eg:if you r using oracle as back end and front end as VB or any language then for better compatibility we will go for an interface.of which COM wil be one among those intefaces.

hi

i will give you example of com.COM means component object model access the methods and properties to your application.

Ex:1.how to accessing the methods in your com object

note:our COM object name is ADO( Activex Data Object )

QTP CODE:

Dim Cn Rs

set Cn CreateObject( ADODB.Connection )

1.note:syntax:set objectName CreateObject( ProgramId )

2.note:every com object having one program id

set Rs CreateObject( ADODB.Recordset )

Cn.ConnectionString path of the Database

Note:1.Cn is the Object name

2.use this Cn object we can access the methods and properties of our COM object

Rs.Open quer name cn

Rs.Move First

Note:Rs.Move First means move the first record