Quote Originally Posted by Arthur
it doesn't recognize the signal.
Could you post the exact error message? If you add "CONFIG += console" to your .pro file, it should appear on the console.

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'...
Well... it looks like that D3DXMATRIX causes the problem. Maybe there should be a #include directive somewhere?

You might try this (although it probably won't help):
Qt Code:
  1. typedef D3DXMATRIX Matrix;
  2. ...
  3. matrixChanged( const Matrix& matrix );
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