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Old 01-11-2004, 03:45 PM   #1
sabeel_ansari
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Registered: Nov 2000
Location: ottawa, canada
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help needed with QT


Hi
I am new to QT programming. I am a lil stuck and I needed some help with it. I would really appreciate it.


I have my code online here......

http://www.cs.concordia.ca/~sabee_an/testqt.cc

Heres the problem,
* Whenever I take out the comments on the statement "Q_OBJECT", i get a long list of error messages....something about "undefined reference to vtable (something)". anyway, the program is working without this statement.

* The more important thing is.......I cant seem to connect the signal clicked() in the class 'MyWidget' to draw_udg_graph() in the class 'Pal'.

Am I doing something wrong here?

Any help would be greatly appreciated.

Thank you in advance.

Sabeel
 
Old 01-21-2004, 03:14 PM   #2
esben
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Registered: Jun 2003
Location: Copenhagen, Denmark
Distribution: Gentoo
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You need to make sure you run the moc compiler on any Q_OBJECTS, and include the output in either the linkage or source file. The other problem is probably related to the first. The Q_OBJECT macro has to be there in order to use slots/signals.
 
  


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