[Qt-creator] Qt-Creator and Qwt under Win, MinGW

[Martin Mensch]

Hi,

I tried to install Qwt under Win7 compiled with MinGW which works so far that I can compile and run the examples.
Now I wanted to install Qwt to Qt Creator so I can use the integrated designer to setup my forms. But this fails. When  using the integrated designer I get a message under Tools | Form Editor | About Qt Designer Plugins... -> Failed plugins:
The plugin 'C:/Qt/Qwt/6.0.2/designer/plugins/designer/qwt_designer_plugin.dll' uses incompatible Qt library. Expected build key "Windows msvc release full-config", got "Windows mingw release full-config"
Googling for that I found some comments that say it is because Qt Creator is compiled with Visual Studio and cannot work together with dlls compiled with MinGW.
So I just want to ask the Qt Creator experts:
- Is that the reason for this message?
- Is there a ready to use Qt Creator compiled with MinGW?
- Are there other ways to get me working with Qwt and Qt Creator?
- What about stand alone Qt Designer? Does it have the same issue?

Thank you for any help

Martin