[Qt-creator] Custom widgets in integrated Qt-designer

[Ayo]

>>> I use custom widgets in Qt-designer (QGLViewer, qwt). They do appear
>>> in the Widget Box when I launch Qt-designer directly, but they are not
>>> visible when I edit or create a UI file in Qt-Creator. Do I miss
>>> anything or is it a bug ?
>>
>> This should work if the designer can find the plugins. That is we don't 
>> build
>> with any namespace, buildkey or libinfix option.
>>
>> Where did you put those plugin files? Note that qtcreators designer uses 
>> the
>> qt that is inside the bin directory.
>
>Under Linux, plugin .so files are in /usr/lib/qt4/plugins/designer. Under 
>Windows XP, plugin DLLs are in Qt\QtCreator\qt\plugins\designer and when I 
>launch designer.exe from Qt\QtCreator\qt\bin I get my custom plugins, which 
>are not visible in the integrated designer - same behaviour under Linux.

It's been about two months since that post and there haven't been any replies
or solutions posted so far. I'm having exactly the same problem and just
can't figure out why Qt Creator isn't showing the custom widgets that Qt
Designer does.

Has there been any progress on this?

- Ayo