VERSIONS: P9 and later
SUBJECT: OCX methods not available
BY: TONY MCGUIRE
Date: 22 November 2001
PROBLEM:
I can add a Corel SVG viewer object to a form, and even display a graphics from a local URL in it. But in the object explorer, or in the code
windows, I don't have access to the objects methods and callbacks, although this works fine with other OCXs.
Whether you can see the OCX methods/properties/events at design time is totally up to the person who created the OCX. A LOT of ocxs
don't expose them at design time, at least not so Paradox can see them. For VB and other programming languages this isn't an issue; for Paradox it
sometimes is. If the OCX isn't visual (if you don't have to use the ocx to display something), I strongly recommend opening and using it from a
library.
Just in case you aren't aware of it:
To view the ocx/COM controls registered on your system:
var
oa oleauto
dy dynarray[] string
endvar
enumautomationservers(dy)
dy.view()
(right side of dynarray display is the internal name used below)
To see the properties/methods/events available in a control:
var
oa oleauto
dye,
dyp,
dym dynarray[] string
endvar
oa.open("ocx.internalname.1") ; some you include the .1, some not
oa.enumproperties(dyp)
oa.enummethods(dym)
oa.enumevents(dye)
oa.close()
dyp.view("properties")
dym.view("methods")
dye.view("events")