using ActiveX in DLL fails

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3 total messages Started by frank_luo Fri, 24 Jul 1998 00:00

#92

Author: frank_luo
Date: Fri, 24 Jul 1998 00:00

17 lines
1559 bytes

I produced a dialog in a DLL using VC 5.0 and the dialog has an ActiveX
control  (Calendar Control 8.0) inside. The dialog can not be created by an
executable created by Delphi 3.0, with error message:

>>>CoCreateInstance of OLE control {8E27c92b.....} failed
>>>Result code : 0x800401f0
>>> Is the control is properly registered?

Can anybody give me a solution?

I do not have problem to pop up the dialog with an executable created by VC
5.0 (with support of Automation AND ActiveX controls).

Thanks in advance.

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Re: using ActiveX in DLL fails

#93

Author: Andreas Leitner
Date: Sat, 25 Jul 1998 00:00

20 lines
1558 bytes

<frank_luo@my-dejanews.com> wrote in message
6pb46r$1hu$1@nnrp1.dejanews.com...
>I produced a dialog in a DLL using VC 5.0 and the dialog has an ActiveX
>control  (Calendar Control 8.0) inside. The dialog can not be created by an
>executable created by Delphi 3.0, with error message:
>
>>>>CoCreateInstance of OLE control {8E27c92b.....} failed
>>>>Result code : 0x800401f0
>>>> Is the control is properly registered?
>
>Can anybody give me a solution?
>
>I do not have problem to pop up the dialog with an executable created by VC
>5.0 (with support of Automation AND ActiveX controls).


A call to CoInitialize() in the DLL initialization routine should help.

hope this helps, Andreas

Re: using ActiveX in DLL fails

#94

Author: Niki Estner
Date: Sat, 25 Jul 1998 00:00

24 lines
1757 bytes


frank_luo@my-dejanews.com schrieb im Beitrag
<6pb46r$1hu$1@nnrp1.dejanews.com>...
> I produced a dialog in a DLL using VC 5.0 and the dialog has an ActiveX
> control  (Calendar Control 8.0) inside. The dialog can not be created by
an
> executable created by Delphi 3.0, with error message:
> 
> >>>CoCreateInstance of OLE control {8E27c92b.....} failed
> >>>Result code : 0x800401f0
> >>> Is the control is properly registered?
> 
> Can anybody give me a solution?

Maybe you just didn't initialize COM [CoInitialize(...)].
I never had problems creating controls within controls from DLL's, pure SDK
programs (written in plain C) or console programs.
It should work from Delphi, too.
> I do not have problem to pop up the dialog with an executable created by
VC
> 5.0 (with support of Automation AND ActiveX controls).
Then MFC initializes COM itself.
	Niki Estner

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