[Lazarus] ActiveX, TOLEControl

[Jesus Reyes A.]

En Wed, 19 Oct 2016 11:07:35 -0500, Dennis via Lazarus  
<lazarus at lists.lazarus-ide.org> escribió:

>
>
> LacaK via Lazarus wrote:
>>
>>>
>>>
>>>> Hi *,
>>>>
>>>> I need help with OCX component (not visual I guess), which I need use  
>>>> in Lazarus application (to control another application, which  
>>>> supplies this OCX control).
>>>> I have imported type library using importtl.exe (new unit was created  
>>>> successfully)
>>>>
>>>> Then in program I have created instance:
>>>>   v := CreateOleObject('SCAPS.ScSamlightClientCtrl');
>>>> or
>>>>   intf := CreateComObject(CLASS_ScSamlightClientCtrl) as  
>>>> _DSamlight_client_ctrl_ocx;
>>> What is the type of your V or intf  variable?
>>
>> V: OLEVariant;
>> intf: _DSamlight_client_ctrl_ocx;
>>
>>> I am wild guessing maybe they are not proper referenced type so the  
>>> object is created and then immediately freed.
>>
>> There is something strange behind scene. I have tried various methods:
> I remember in Delphi, I sometimes have to call CoInitialize and  
> CoUninitialize.
> Not sure if FPC has to do the same.
> Have you tried that?
>
> Dennis


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