ActiveX controls with old Delphi versions
- by DamienD
I'm testing a non visual ActiveX control based on a registered .ocx
which I import into Delphi using the provided wizard.
Then, I simply put the generated component on the main form of a new VCL application.
Under old Delphi versions (D5 and D2007), when i launch the application, this raise an AV
during the component initialization.
with Delphi 2009 : no problem, the application starts smoothly.
My questions are :
Are there known enhancements of ActiveX management in recent Delphi versions which
can explain this difference ?
Can I suspect a bug in the ActiveX control, or can I consider the origin of the
problem is from old Delphi versions ?
I need to use this component (if tests OK) in D2007.
Do you think that it is possible to correct the AV problem under D2007 by modifying the D2007 generated .tlb file (for example by trying to use the D2009 generated one)
PS: the ActiveX control is not named, because my question is a general question about Delphi and ActiveX, not about a specific ActiveX control.