[Qt-interest] Treating User defined type as QVariant via void*

[Santhosh Y]

1>------ Build started: Project: variant_test, Configuration: Debug 
Win32 ------
1>Compiling...
1>variant.cpp
1>c:\qt\4.5.2\include\qtcore\../../src/corelib/kernel/qmetatype.h(189) : 
error C2039: 'qt_metatype_id' : is not a member of 'QMetaTypeId<T>'
1>        with
1>        [
1>            T=Node *
1>        ]
1>        
c:\qt\4.5.2\include\qtcore\../../src/corelib/kernel/qmetatype.h(189) : 
while compiling class template member function 'int 
QMetaTypeId2<T>::qt_metatype_id(void)'
1>        with
1>        [
1>            T=Node *
1>        ]
1>        
c:\qt\4.5.2\include\qtcore\../../src/corelib/kernel/qmetatype.h(199) : 
see reference to class template instantiation 'QMetaTypeId2<T>' being 
compiled
1>        with
1>        [
1>            T=Node *
1>        ]
1>        
c:\qt\4.5.2\include\qtcore\../../src/corelib/kernel/qvariant.h(585) : 
see reference to function template instantiation 'int qMetaTypeId<T>(T 
*)' being compiled
1>        with
1>        [
1>            T=Node *
1>        ]
1>        
c:\qt\4.5.2\include\qtcore\../../src/corelib/kernel/qvariant.h(327) : 
see reference to function template instantiation 'bool 
qVariantCanConvert<T>(const QVariant &)' being compiled
1>        with
1>        [
1>            T=Node *
1>        ]
1>        .\variant.cpp(62) : see reference to function template 
instantiation 'bool QVariant::canConvert<Node*>(void) const' being compiled
1>Build log was saved at 
"file://c:\cygwin\home\AFTERCHANGE\aera2GUI\variant_test\debug\BuildLog.htm"
1>variant_test - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

On 9/22/2010 3:26 PM, Stephen Kelly wrote:
> Santhosh Y wrote:
>
>    
>> Hi ,
>>
>> Please find the attached file.
>> Here I am trying to treat Node* as QVariant, since only QVariant can be
>> exported across 2-different process via COM (activeX control)
>> When I am trying to build this, I am facing compilation issues.
>> Can you guide us in resolving the issue over here .
>>
>>
>>      
> What is the compilation error? Is it that Node does not have a default
> constructor? Then create a default constructor.
>
> All the best,
>
> Steve.
>
>
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>    


-- 
----------------------------------------------------
Y Santhosh Kumar -
Senior Software Engineer,
SoftJin Technologies Pvt Ltd,
www.softjin.com
----------------------------------------------------



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