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qtsignals-slotsqthread

Object::connect: No such signal MyThread::MySignal()

  1. My program has one thread class.
  2. The signal and the slot both are in that thread class itself.
  3. The header file and the source file are separate.
  4. main () function is in the source file itself.

In main (), I am using connect as follows:

MyThread objA;
Object :: connect (&objA, SIGNAL(MySignal()), &objA, SLOT(MySlot()));

.pro file is:

######################################################################
# Automatically generated by qmake (2.01a) Thu Dec 1 13:05:43 2011
######################################################################

TEMPLATE = app
TARGET = 
DEPENDPATH += .
INCLUDEPATH += .

# Input
HEADERS += qtWheel.h
SOURCES += qtWheel.cpp

I saw the above error during run time. Please guide.

Solution

  • I have found the solution:
    The parameters of signal and slot functions were mismatching! As soon as I fixed them, the slot got called.

    Thanks to: http://samdutton.wordpress.com/2008/10/03/debugging-signals-and-slots-in-qt/