Qt error ------ qRegisterMetaType() 跨线程信号与槽的形参携带
Qt提示:
QObject::connect: Cannot queue arguments of type 'FrequencySpectrum'
(Make sure 'FrequencySpectrum' is registered using qRegisterMetaType().)
解决:
在connect之前添加如下,FrequencySpectrum为信号与槽形参类型
qRegisterMetaType<FrequencySpectrum>("FrequencySpectrum");

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