Odd behavior Signals and Slots

[Arthur]

Thanks for your input.

In the debugger I can see that Qt is logging the error (however I don't see it in the VS IDE output window). The reason is simple: it doesn't recognize the signal.

Strange enough it only works in the example I wrote, no matter how the signal and slot are defined. It works when I define it with 'const D3DXMATRIX &' and connect with only 'D3DXMATRIX'...

Note that this is the only case in which I experienced this behavior. I have for example some QLineEdit connections defined with (QString const &) which work fine...

Is it because the struct (DirectX SDK), is not a QObject?

Arthur