IE BHO display a messagebox on toolbar button click.

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I am developing BHO for IE with C++ (ATL). Via registry I have added a toolbar button into IE that calls COM dll of mine. However, how could I make it display a message box on button click (not load/unload of addin).

Posted 21-Jan-10 4:18am

byytas

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Jast_in · Accepted Answer · 2010-01-21T21:03:00

Solution 1

You need to add a message handler to your button:

<br />
  ON_BN_CLICKED( BUTTON_ID, OnBtnClick )<br />

And, of course a function for that:

<br />
afx_msg void ClassName::OnBtnClick()<br />
{<br />
MessageBox( "Some test text" );<br />
}<br />

I just tried it in my BHO for IE... works fine!

Posted 21-Jan-10 21:03pm

Jast_in

Updated 21-Jan-10 21:09pm

v2

Jast_in · Accepted Answer · 2010-01-22T10:51:00

Add this 2 blocks to your class source file:

<br />
BEGIN_MESSAGE_MAP(YourClassName, YourBaseClass)<br />
ON_BN_CLICKED( BUTTON_ID, OnBtnClick )<br />
END_MESSAGE_MAP()<br />

<br />
afx_msg void YourClassName::OnBtnClick()<br />
{<br />
MessageBox( "Some test text" );<br />
}<br />

Add this line to your class header file:

<br />
afx_msg void OnBtnClick();<br />

That's all... what else do you need? :)