discuss.visual-prolog.com

Posted: **7 Mar 2014 9:08**

Hi,

After to create a new MSHTML Com component in my VP 7.3 project, I've this type of error :
How to solve it ?

mshtml\export\dispHTMLDocument_export.pro(246,20) error c504: The expression has type 'comDomains::variant', which is incompatible with the type 'comDomains::comVariant'

Code: Select all

% dispHTMLDocument_impl.i :
predicates
    get_AlinkColor : (comDomains::comVariant HResult) -> core::hResult HResult procedure (o) language stdcall.
predicates
    dispHTMLDocument_get_AlinkColor : () -> comDomains::variant Value.
 
% dispHTMLDocument_export.pro :
clauses
    get_AlinkColor(Value) = VipHR000 :- % !!! error here on Value
        try
            Value = implementation_fact:dispHTMLDocument_get_AlinkColor(),
            VipHR000 = winErrors::s_ok
        catch TraceId do
            VipHR000 = catchHandler(TraceId)
        end try.
 
% dispHTMLDocument_native_binary.i :
predicates
    get_AlinkColor : (comDomains::comVariant HResult) -> core::hResult HResult procedure (o) language stdcall.

Posted: **24 Mar 2014 15:56**

Sorry, I must have missed this mail.

The generated code is (obviously) wrong.

However instead of fixing the code I suggest that you delete all those "export" files and their include directives that are not related to event listening.

I cannot remember how it is in the MSHTML, but I believe there are only a few interfaces related to event listening. I also believe they have names that are not starting with "i" and contains "Event".

discuss.visual-prolog.com

MSHTML Com component error c504

MSHTML Com component error c504