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How to call method of an ActiveX control from inside VC++ project.

Hi all,

I have developed an ActiveX control (using VB), which will plot some data for 5 seconds. Now i have written a method that can accept the the time in run time.

Then i inserted the ActiveX by right clicking on dialog box & include ActiveX control, it works fine then i did not see any wrapper classes. (but when i included this control by clicking project->include object-> this activex control, I could see wrapper class created for this but i did not know how to display this in the dialog box.

And i have no idea of how to call the method there so that the graph is plotted for the new time interval that i pass from inside VC++.

Thanks in advance

Kalai

jimbucci

You have to get the IDispatch pointer to the ActiveX control then call its method.

ICtrlPtr pCtl;
IUnknown* pIUnk = NULL;
if SUCCEEDED(GetDlgControl(IDC_Control,
__uuidof(IUnknown),
(void**)&pIUnk))
{
pCtl = pIUnk;
pCtl->MethodCall();
}

IDC_Control is your resource ID for the ActiveX control.

I hope this helps.
Jim

kamp007

ASKER

Even though i know C++, i am not a experienced VC++ programmer. So I am not sure about what u said. Can you please explain it clearly. And I am sorry i forgot to say that, i inserted the ActiveX by right clicking on dialog box & include ActiveX control, then i did not see any wrapper classes.
Thanks again
Kalai

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jimbucci

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kamp007

ASKER

def that helps. But i read some MFC book and figured out myself about how to pass a pointer to a Control item. But thanks for your reply.
kalai