Function previously defined in created file?

[yop]

Yes. Is this not correct?

No it's perfectly legitimate that's not the problem, I was just thinking of various things for what happens, but I still can't visualize it. When I said that you should be more descriptive I meant for the workaround you found that didn't fit your needs. If it's possible attach your sourcecode to duplicate the error.

There really ought to be scrollbars on those [Q U O T E] boxes.

You can use the [C O D E] (without the spaces of cource) tag instead to get scrollbars

[Twey]

The workaround was to keep the implementation out of both SOURCES and HEADERS groups.
Source attached.

[yop]

From the assistant (Signals and Slots)

Signals are automatically generated by the moc and must not be implemented in the .cpp file.

Remove the implementation of your mouseMoved() and you' re done

Edit: Also rename this slot void QDoubleButton::clicked(). It's got the same name as the signal

[Twey]

Aha I did find the first problem, shortly after posting, but not the second.
Nevertheless, I still get these:

moc_qdoublebutton.o(.text+0x0): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/usr/lib/qt-3.3/include/qglist.h:150: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x0):/usr/lib/qt-3.3/include/qglist.h:150: first defined here
moc_qdoublebutton.o(.text+0x3a): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x3a):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: first defined here
moc_qdoublebutton.o(.text+0x74): In function `QTrackingButton::mouseMoveEvent(QMouseEvent*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: multiple definition of `QTrackingButton::mouseMoveEvent(QMouseEvent*)'
app4lin.o(.text+0x74):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: first defined here
moc_qdoublebutton.o(.text+0x304): In function `QDoubleButton::clicked()':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:31: multiple definition of `QDoubleButton::clicked()'
app4lin.o(.text+0x4ee):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:31: first defined here
moc_qdoublebutton.o(.text+0x3fa): In function `QDoubleButton::moused()':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:36: multiple definition of `QDoubleButton::moused()'
app4lin.o(.text+0x5e4):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:36: first defined here
moc_qdoublebutton.o(.text+0x556): In function `QDoubleButton::QDoubleButton(QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: multiple definition of `QDoubleButton::QDoubleButton(QWidget*, char*)'
app4lin.o(.text+0x7e):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: first defined here
/usr/bin/ld: Warning: size of symbol `QDoubleButton::QDoubleButton(QWidget*, char*)' changed from 488 in app4lin.o to 484 in moc_qdoublebutton.o
moc_qdoublebutton.o(.text+0x73a): In function `QDoubleButton::QDoubleButton(QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: multiple definition of `QDoubleButton::QDoubleButton(QWidget*, char*)'
app4lin.o(.text+0x266):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: first defined here
/usr/bin/ld: Warning: size of symbol `QDoubleButton::QDoubleButton(QWidget*, char*)' changed from 484 in app4lin.o to 488 in moc_qdoublebutton.o
moc_qtrackingbutton.o(.text+0x364): In function `QTrackingButton::mouseMoveEvent(QMouseEvent*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: multiple definition of `QTrackingButton::mouseMoveEvent(QMouseEvent*)'
app4lin.o(.text+0x74):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: first defined here
moc_qtrackingbutton.o(.text+0x0): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
moc_qtrackingbutton.cpp: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x0):app4lin.cxx: first defined here
moc_qtrackingbutton.o(.text+0x3a): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x3a):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: first defined here

moc_qdoublebutton.o(.text+0x0): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/usr/lib/qt-3.3/include/qglist.h:150: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x0):/usr/lib/qt-3.3/include/qglist.h:150: first defined here
moc_qdoublebutton.o(.text+0x3a): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x3a):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: first defined here
moc_qdoublebutton.o(.text+0x74): In function `QTrackingButton::mouseMoveEvent(QMouseEvent*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: multiple definition of `QTrackingButton::mouseMoveEvent(QMouseEvent*)'
app4lin.o(.text+0x74):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: first defined here
moc_qdoublebutton.o(.text+0x304): In function `QDoubleButton::clicked()':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:31: multiple definition of `QDoubleButton::clicked()'
app4lin.o(.text+0x4ee):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:31: first defined here
moc_qdoublebutton.o(.text+0x3fa): In function `QDoubleButton::moused()':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:36: multiple definition of `QDoubleButton::moused()'
app4lin.o(.text+0x5e4):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:36: first defined here
moc_qdoublebutton.o(.text+0x556): In function `QDoubleButton::QDoubleButton(QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: multiple definition of `QDoubleButton::QDoubleButton(QWidget*, char*)'
app4lin.o(.text+0x7e):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: first defined here
/usr/bin/ld: Warning: size of symbol `QDoubleButton::QDoubleButton(QWidget*, char*)' changed from 488 in app4lin.o to 484 in moc_qdoublebutton.o
moc_qdoublebutton.o(.text+0x73a): In function `QDoubleButton::QDoubleButton(QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: multiple definition of `QDoubleButton::QDoubleButton(QWidget*, char*)'
app4lin.o(.text+0x266):/home/twey/devel/cpp/qt/hts/app4lin/qdoublebutton.h:18: first defined here
/usr/bin/ld: Warning: size of symbol `QDoubleButton::QDoubleButton(QWidget*, char*)' changed from 484 in app4lin.o to 488 in moc_qdoublebutton.o
moc_qtrackingbutton.o(.text+0x364): In function `QTrackingButton::mouseMoveEvent(QMouseEvent*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: multiple definition of `QTrackingButton::mouseMoveEvent(QMouseEvent*)'
app4lin.o(.text+0x74):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:21: first defined here
moc_qtrackingbutton.o(.text+0x0): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
moc_qtrackingbutton.cpp: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x0):app4lin.cxx: first defined here
moc_qtrackingbutton.o(.text+0x3a): In function `QTrackingButton::QTrackingButton(QString, QWidget*, char*)':
/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: multiple definition of `QTrackingButton::QTrackingButton(QString, QWidget*, char*)'
app4lin.o(.text+0x3a):/home/twey/devel/cpp/qt/hts/app4lin/qtrackingbutton.h:17: first defined here

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[anda_skoa]

Looks like missing include guards, i.e.

#ifndef SOMEHEADER_H
#define SOMEHEADER_H
 
class SomeClass
{
};
 
#endif

#ifndef SOMEHEADER_H
#define SOMEHEADER_H

class SomeClass
{
};

#endif

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Cheers,
_

[Twey]

Nope, got them.

[yop]

The attached project built fine with:
g++ --version
g++ (GCC) 3.3.5 20050117 (prerelease) (SUSE Linux)
qmake --version
Qmake version: 1.07a (Qt 3.3.4)
under Suse Linux 9.3
A diff with your files will be usefull

[Twey]

Yes, builds here too. diff attached.

/EDIT: Of more interest might be this diff between your project and the same project when declaration and implementation are cat'ed into one file, which gives the same errors as above.

[yop]

Apparently that was the problem

[Twey]

Is this [putting definition and implementation in the same file] not correct?

No it's perfectly legitimate that's not the problem

If that's so, I don't understand why it should be a problem :-\

[yop]

Yes it's food for thought, I've been googling around for it but I can't seem to find any answers . It was a trial and error process for me too. It really felt right to have it in the header file (I would have told you to remove them in the first place) but apparenty it's not.

[jacek]

If that's so, I don't understand why it should be a problem :-\

In such case you must add a hint for qmake that it should run moc program on your .cpp file, as it only checks headers for Q_OBJECT.

You have to add:

#include "filename.moc"

#include "filename.moc"

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at the end of a file.

Edit: OK, forget it. I should check your program before posting. The problem is different.

[Twey]

In such case you must add a hint for qmake that it should run moc program on your .cpp file, as it only checks headers for Q_OBJECT.

But the files were headers.
Also, yop, when the second button in your code (b2) is connected to the moused() slot, nothing happens.

[yop]

In such case you must add a hint for qmake that it should run moc program on your .cpp file, as it only checks headers for Q_OBJECT.

You have to add:

#include "filename.moc"

#include "filename.moc"

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at the end of a file.

Don't you get a vtable blah blah error in that case? There is an undefined reference error here. Ok I'll shut up and reboot linux to check it out myself...

Edit: OK, forget it. I should check your program before posting. The problem is different.

Edit: Ok no need to check it out then