在QT中,怎样在disconnect一个信号和槽的联接之前,先判断它是否已经connect?

lklk205

rt!

wulfgang

try this:

void QObject::dumpObjectInfo ()

Dumps information about signal connections, etc. for this object to the debug output.
This function is useful for debugging, but does nothing if the library has been compiled in release mode (i.e. without debugging information).