How to call the OnChange event of “Select” ? (Delphi - WebBrowser)

Question

I\'m using Delphi and WebBrowser componenet to navigate a html page . the page have a Combobox . is there any way to call the OnChange event ?

The ComboBox is like this

Answer 1

Inspired by the response. NET have been using the structures below:

FrameSet Document Elements Item Name Value Change ;
EWB.OleObject.Document.Frames.Item('mainFrame').Document.Forms.Item('invoiceForm').Elements.Item('inputname').Value:= '123456';

or

FrameSet Document Elements Items Lenth;

EWB.OleObject.Document.Forms.Item('invoiceForm').Elements.Length;