17 Nov
2016
17 Nov
'16
5:02 a.m.
Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI Programming
with Qt 3", which of course is not written with Trinity in mind, but
hopefully will be enough to get me started. I've already figured out that I
need to substitute 'tqmake' for 'qmake', but I can't get the
simple 'helloworld' project to actually compile the c++ code. I've got the
project generated, and I see the code in its src/ directory, but when I try
to build it (the book says to use 'make') it says "make: Nothing to be done
for 'first'."
Here is the Makefile generated by tqmake:
###########################################################################
Makefile for building: Tutorial1
Generated by qmake (1.07a) (TQt 3.5.0) on: Wed Nov 16 22:57:35 2016
Project: Tutorial1.pro
Template: subdirs
Command: $(QMAKE) -o Makefile Tutorial1.pro
###########################################################################
MAKEFILE = Makefile
MAKE = tqmake
DEL_FILE = rm -f
CHK_DIR_EXISTS= test -d
MKDIR = mkdir -p
INSTALL_FILE=
INSTALL_DIR =
SUBTARGETS =
first: all
all: Makefile $(SUBTARGETS)
Makefile: Tutorial1.pro /usr/share/tqt3/mkspecs/default/qmake.conf
$(QMAKE) -o Makefile Tutorial1.pro
qmake: qmake_all
@$(QMAKE) -o Makefile Tutorial1.pro
all qmake_all distclean uicables mocables install_subdirs uninstall_subdirs
uiclean mocclean lexclean yaccclean clean : FORCE
install: install_subdirs
uninstall: uninstall_subdirs
FORCE:
And here is the Project file:
######################################################################
# Automatically generated by qmake (1.07a) Wed Nov 16 22:47:58 2016
######################################################################
TEMPLATE = subdirs
# Directories
Are there additional steps required when compiling a QT project in Trinity?
Leslie
17 Nov
17 Nov
1:17 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016/11/17 01:02 PM, Leslie Turriff wrote:
Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI Programming
with Qt 3", which of course is not written with Trinity in mind, but
hopefully will be enough to get me started. I've already figured out that I
need to substitute 'tqmake' for 'qmake', but I can't get the
simple 'helloworld' project to actually compile the c++ code. I've got the
project generated, and I see the code in its src/ directory, but when I try
to build it (the book says to use 'make') it says "make: Nothing to be done
for 'first'."
Here is the Makefile generated by tqmake:
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele
###########################################################################
Makefile for building: Tutorial1
Generated by qmake (1.07a) (TQt 3.5.0) on: Wed Nov 16 22:57:35 2016
Project: Tutorial1.pro
Template: subdirs
Command: $(QMAKE) -o Makefile Tutorial1.pro
###########################################################################
MAKEFILE = Makefile
MAKE = tqmake
DEL_FILE = rm -f
CHK_DIR_EXISTS= test -d
MKDIR = mkdir -p
INSTALL_FILE=
INSTALL_DIR =
SUBTARGETS =
first: all
all: Makefile $(SUBTARGETS)
Makefile: Tutorial1.pro /usr/share/tqt3/mkspecs/default/qmake.conf
$(QMAKE) -o Makefile Tutorial1.pro
qmake: qmake_all
@$(QMAKE) -o Makefile Tutorial1.pro
all qmake_all distclean uicables mocables install_subdirs uninstall_subdirs
uiclean mocclean lexclean yaccclean clean : FORCE
install: install_subdirs
uninstall: uninstall_subdirs
FORCE:
And here is the Project file:
######################################################################
# Automatically generated by qmake (1.07a) Wed Nov 16 22:47:58 2016
######################################################################
TEMPLATE = subdirs
# Directories
Are there additional steps required when compiling a QT project in Trinity?
Leslie
27 Nov
27 Nov
2:11 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-17 07:17:00 Michele Calgaro wrote:
On 2016/11/17 01:02 PM, Leslie Turriff wrote:
Okay, I tried that and got exactly the same results. The tutorial you cited
even has the same mistaken instruction to use qmake instead of tqmake.
Leslie
Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI
Programming with Qt 3", which of course is not written with Trinity in
mind, but hopefully will be enough to get me started. I've already
figured out that I need to substitute 'tqmake' for 'qmake', but I
can't
get the
simple 'helloworld' project to actually compile the c++ code. I've got
the project generated, and I see the code in its src/ directory, but when
I try to build it (the book says to use 'make') it says "make: Nothing to
be done for 'first'."
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele 
7:54 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
Am Sonntag, 27. November 2016 schrieb Leslie Turriff:
On 2016-11-17 07:17:00 Michele Calgaro wrote:
It's essentally the tutorial from Trolltech of 2005. It would be nice if
"somebody" who is working through that stuff could adapt it on the fly.
Nik
--
Please do not email me anything that you are not comfortable also sharing with the NSA.
On 2016/11/17 01:02 PM, Leslie Turriff wrote:
Okay, I tried that and got exactly the same results. The tutorial you cited
even has the same mistaken instruction to use qmake instead of tqmake. Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI
Programming with Qt 3", which of course is not written with Trinity in
mind, but hopefully will be enough to get me started. I've already
figured out that I need to substitute 'tqmake' for 'qmake', but I
can't
get the
simple 'helloworld' project to actually compile the c++ code. I've got
the project generated, and I see the code in its src/ directory, but when
I try to build it (the book says to use 'make') it says "make: Nothing to
be done for 'first'."
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele
12:03 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016/11/27 11:11 AM, Leslie Turriff wrote:
On 2016-11-17 07:17:00 Michele Calgaro wrote:
I tried tutorial 1: copied the code to a .cpp file, followed the exact instructions
(except replacing qmake with tqmake
as you already pointed out). Works perfectly on my system.
This is a pretty basic tutorial ofcourse, no TDE stuff there, no tqtinterface.
Try to give it a second try :-)
Cheers
Michele
On 2016/11/17 01:02 PM, Leslie Turriff wrote:
Okay, I tried that and got exactly the same results. The tutorial you cited
even has the same mistaken instruction to use qmake instead of tqmake.
Leslie
Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI
Programming with Qt 3", which of course is not written with Trinity in
mind, but hopefully will be enough to get me started. I've already
figured out that I need to substitute 'tqmake' for 'qmake', but I
can't
get the
simple 'helloworld' project to actually compile the c++ code. I've got
the project generated, and I see the code in its src/ directory, but when
I try to build it (the book says to use 'make') it says "make: Nothing to
be done for 'first'."
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele
12:37 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-27 06:03:30 Michele Calgaro wrote:
On 2016/11/27 11:11 AM, Leslie Turriff wrote:
Okay, I removed all files from my Tutorial1 directory, and started over.
Here's what I get:
On 2016-11-17 07:17:00 Michele Calgaro wrote:
I tried tutorial 1: copied the code to a .cpp file, followed the exact
instructions (except replacing qmake with tqmake as you already pointed
out). Works perfectly on my system.
This is a pretty basic tutorial ofcourse, no TDE stuff there, no
tqtinterface. Try to give it a second try :-)
Cheers
Michele On 2016/11/17 01:02 PM, Leslie Turriff wrote:
Okay, I tried that and got exactly the same results. The tutorial you
cited even has the same mistaken instruction to use qmake instead of
tqmake.
Leslie Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI
Programming with Qt 3", which of course is not written with Trinity in
mind, but hopefully will be enough to get me started. I've already
figured out that I need to substitute 'tqmake' for 'qmake', but I
can't
get the
simple 'helloworld' project to actually compile the c++ code. I've got
the project generated, and I see the code in its src/ directory, but
when I try to build it (the book says to use 'make') it says "make:
Nothing to be done for 'first'."
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele @06:19:45,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ echo '/****************************************************************
**
** Qt tutorial 1
**
****************************************************************/
#include <qapplication.h>
#include <qpushbutton.h>
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}' >main.cpp
@06:20:02,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
└── main.cpp
0 directories, 1 file
@06:20:21,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tqmake -project
@06:20:29,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
└── Tutorial1.pro
0 directories, 2 files
@06:20:31,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tqmake
@06:20:38,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
├── Makefile
└── Tutorial1.pro
0 directories, 3 files
@06:20:40,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3 -o
main.o main.cpp
main.cpp:7:26: fatal error: qapplication.h: No such
file or directory
#include <qapplication.h>
^
compilation terminated.
Makefile:67: recipe for target 'main.o' failed
make: *** [main.o] Error 1
@06:20:46,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
├── Makefile
└── Tutorial1.pro
0 directories, 3 files
So, different, but still not working. I searched for qapplication.h and found
it in /usr/include/tqt/QT/, but adding -I/usr/include/tqt/QT/ to the Makefile
INCPATH made no difference.
@06:32:33,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3
-I/usr/include/tqt/QT/ -o
main.o main.cpp
main.cpp:7:26: fatal error: qapplication.h: No such
file or directory
#include <qapplication.h>
^
compilation terminated.
Makefile:67: recipe for target 'main.o' failed
make: *** [main.o] Error 1
Leslie
2:40 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On Sun, 27 Nov 2016 06:37:01 -0600
Leslie Turriff <jlturriff(a)mail.com> wrote:
On 2016-11-27 06:03:30 Michele Calgaro wrote:
> On 2016/11/27 11:11 AM, Leslie Turriff wrote:
> > On 2016-11-17 07:17:00 Michele Calgaro wrote:
> >> On 2016/11/17 01:02 PM, Leslie Turriff wrote:
> >>> Hi,
> >>> I'm trying to learn to write a GUI app using the book "C++
GUI
> >>> Programming with Qt 3", which of course is not written with
Trinity in
[...]
So, different, but still not working. I searched for
qapplication.h and found
it in /usr/include/tqt/QT/, but adding -I/usr/include/tqt/QT/ to the Makefile
INCPATH made no difference.
If I had to guess:
For anything with a "q" prefix, check for an equivalent with a "tq"
prefix (in this case,
"tqapplication.h"), and if it exists, use the "tq" version. And in
general, using things in
the QT subdirectory without going through a wrapper outside it may not be a good
idea.
We used to have a KDE3 -> TDE application conversion tool--it's probably still in
git somewhere. While it wasn't perfect, studying it might give you some idea of what
changes you need to make.
E. Liddell
@06:32:33,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3
-I/usr/include/tqt/QT/ -o
main.o main.cpp
> main.cpp:7:26: fatal error: qapplication.h: No such file or directory
> #include <qapplication.h>
> ^
> compilation terminated.
> Makefile:67: recipe for target 'main.o' failed
> make: *** [main.o] Error 1
28 Nov
28 Nov
12:38 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016/11/27 09:37 PM, Leslie Turriff wrote:
On 2016-11-27 06:03:30 Michele Calgaro wrote:
Sorry,
my bad, I never realized the code in the online tutorial and the offline one are different
:-(
I actually went through the same tutorial from the tqt3 local documents, found in
/usr/share/tqt3/doc/html/tutorial1-01.html
This is basically the same page as the online one, but there are small differences in the
include files and Qt objects.
------------------------------
#include <ntqapplication.h>
#include <ntqpushbutton.h>
int main( int argc, char **argv )
{
TQApplication a( argc, argv );
TQPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}
-------------------------------
Please try again and let us know.
Cheers
Michele
On 2016/11/27 11:11 AM, Leslie Turriff wrote:
Okay, I removed all files from my Tutorial1 directory, and started
over.
Here's what I get:
On 2016-11-17 07:17:00 Michele Calgaro wrote:
I tried tutorial 1: copied the code to a .cpp file, followed the exact
instructions (except replacing qmake with tqmake as you already pointed
out). Works perfectly on my system.
This is a pretty basic tutorial ofcourse, no TDE stuff there, no
tqtinterface. Try to give it a second try :-)
Cheers
Michele On 2016/11/17 01:02 PM, Leslie Turriff wrote:
> Hi,
> I'm trying to learn to write a GUI app using the book "C++ GUI
> Programming with Qt 3", which of course is not written with Trinity in
> mind, but hopefully will be enough to get me started. I've already
> figured out that I need to substitute 'tqmake' for 'qmake', but I
can't
> get the
> simple 'helloworld' project to actually compile the c++ code. I've got
> the project generated, and I see the code in its src/ directory, but
> when I try to build it (the book says to use 'make') it says "make:
> Nothing to be done for 'first'."
Take a look at the QT3 tutorial here
https://www.trinitydesktop.org/docs/qt3/tutorial.html
Should be able to get you started with TQt ;-)
Cheers
Michele
Okay, I tried that and got exactly the same results. The tutorial you
cited even has the same mistaken instruction to use qmake instead of
tqmake.
Leslie @06:19:45,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ echo '/****************************************************************
**
** Qt tutorial 1
**
****************************************************************/
#include <qapplication.h>
#include <qpushbutton.h>
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}' >main.cpp
@06:20:02,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
└── main.cpp
0 directories, 1 file
@06:20:21,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tqmake -project
@06:20:29,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
└── Tutorial1.pro
0 directories, 2 files
@06:20:31,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tqmake
@06:20:38,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
├── Makefile
└── Tutorial1.pro
0 directories, 3 files
@06:20:40,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3 -o
main.o main.cpp
main.cpp:7:26: fatal error: qapplication.h: No
such file or directory
#include <qapplication.h>
^
compilation terminated.
Makefile:67: recipe for target 'main.o' failed
make: *** [main.o] Error 1
@06:20:46,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ tree -a
.
├── main.cpp
├── Makefile
└── Tutorial1.pro
0 directories, 3 files
So, different, but still not working. I searched for qapplication.h and found
it in /usr/include/tqt/QT/, but adding -I/usr/include/tqt/QT/ to the Makefile
INCPATH made no difference.
@06:32:33,leslie@pinto.sixys.site
~/Documents/SourceCode/QT/Tutorial1
$ make
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3
-I/usr/include/tqt/QT/ -o
main.o main.cpp
main.cpp:7:26: fatal error: qapplication.h: No
such file or directory
#include <qapplication.h>
^
compilation terminated.
Makefile:67: recipe for target 'main.o' failed
make: *** [main.o] Error 1
Leslie
4:51 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-27 18:38:47 Michele Calgaro wrote:
Sorry,
my bad, I never realized the code in the online tutorial and the offline
one are different :-( I actually went through the same tutorial from the
tqt3 local documents, found in /usr/share/tqt3/doc/html/tutorial1-01.html
This is basically the same page as the online one, but there are small
differences in the include files and Qt objects.
------------------------------
#include <ntqapplication.h>
#include <ntqpushbutton.h>
int main( int argc, char **argv )
{
TQApplication a( argc, argv );
TQPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}
-------------------------------
Please try again and let us know.
Cheers
Michele
Okay. Based on your reply and a response from Gregory Guy, I replaced the
include path
-I/usr/include/tqt/QT/
with
-I/usr/include/tqt/
and got this:
| @10:30:57,leslie@pinto.sixys.site
| ~/Documents/SourceCode/QT/Tutorial1
| $ make
|
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3
-I/usr/include/tqt/ -o
main.o main.cpp
| g++ -luuid -o Tutorial1
main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt -lXext -lX11 -lm
| /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld:
main.o: undefined reference to symbol '_ZN7TQGListD0Ev'
| /usr/lib64/libtqt-mt.so.3: error adding symbols: DSO missing from command
line
| collect2: error: ld returned 1 exit status
| Makefile:88: recipe for target 'Tutorial1' failed
| make: *** [Tutorial1] Error 1
So apparently I've satisfied the compiler, but not the loader. I see lots of
files beginning with 'libtqt' in /usr/lib64, and a subdirectory
called /usr/lib64/tqt3/plugins that looks like parts for a QT development
tool. Is the fix as simple as adding "DSO" somewhere in the Makefile? Such
fun...
Leslie
9:54 p.m.
New subject: [trinity-users] Re: Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-28 13:52:56 deloptes wrote:
Leslie Turriff wrote:
...and that fixes it. How would I have known that?
g++ -luuid -o Tutorial1
main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt
-lXext -lX11 -lm
Add link to tqt-mt lib
g++ ... -lX11 -lm -ltqt-mt
It is called the linker not the loader btw.
Yes, of course. I misspoke. :-)
Leslie
10:43 p.m.
New subject: [trinity-users] Re: Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-28 13:52:56 deloptes wrote:
It sounds like we have some documentation to update on the Wiki. Do you
mind getting some notes together on what was unexpected / what you had to
fix? Many of the main developers (including myself) are so used to
working on TDE that we rarely have the opportunity to see the tools
through fresh eyes, as you have just (painfully) done.
Thanks!
Leslie Turriff wrote:
...and that fixes it. How would I have known that?
g++ -luuid -o Tutorial1
main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt
-lXext -lX11 -lm
Add link to tqt-mt lib
g++ ... -lX11 -lm -ltqt-mt
6 Dec
6 Dec
3:55 a.m.
New subject: [trinity-users] Re: Struggling with "C++ GUI Programming with Qt 3"
I'll see what I can do to help with this.
One of the things that I noticed (quite early, fortunately) is that the
documentation in /usr/share/tqt3/doc/html/ appears to be the old Qt docs,
superficially updated by globally changing all of the 'Qt's to 'TQt',
while
not fixing pointers to old Qt external references, many of which don't seem
to work any more; e.g., the link on theHow to Learn TQt page to 'the official
TQt book, C++ GUI Programming with TQt 3 (ISBN 0-13-124072-2)', which points
to an old QT3 book, and the links to the TrollTech website. This makes me
wonder how much of the content is actually for the old non-TQt code?
On 2016-11-28 16:43:52 Timothy Pearson wrote:
It sounds like we have some documentation to update on
the Wiki. Do you
mind getting some notes together on what was unexpected / what you had to
fix? Many of the main developers (including myself) are so used to
working on TDE that we rarely have the opportunity to see the tools
through fresh eyes, as you have just (painfully) done.
Thanks!
7:59 a.m.
Leslie Turriff wrote:
I'll see what I can do to help with this.
One of the things that I noticed (quite early, fortunately) is that the
documentation in /usr/share/tqt3/doc/html/ appears to be the old Qt docs,
superficially updated by globally changing all of the 'Qt's to 'TQt',
while not fixing pointers to old Qt external references, many of which
don't seem to work any more; e.g., the link on theHow to Learn TQt page to
'the official TQt book, C++ GUI Programming with TQt 3 (ISBN
0-13-124072-2)', which points
to an old QT3 book, and the links to the TrollTech website. This makes me
wonder how much of the content is actually for the old non-TQt code?
I guess no one has the time to go through it and make it right. I also think
it was passed through a script to update the code related stuff like the
names of the classes that have been already moved to tqt naming convention,
but obviously the underlaying stuff like links is not perfect.
However, if I may share my experience, the documentation is very useful per
se - much of it is in the header files anyway and when you know a bit of Qt
it is easy to understand what needs to be done. You have a lot of working
code as an example as well.
The TrollTech website seems to be a dead end - last time I visited it via
the documentation. I now maintain a local copy of most of the
documentation, via the doc packages.
I must also admit it is hard to find your way around. Finally I am just
asking here in the newsgroup and usually someone answers (Michele or
Slavek).
regards
28 Nov
28 Nov
7:56 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
Sorry,
my bad, I never realized the code in the online tutorial and the offline
one are different :-( I actually went through the same tutorial from the
tqt3 local documents, found in /usr/share/tqt3/doc/html/tutorial1-01.html
This is basically the same page as the online one, but there are small
differences in the include files and Qt objects.
------------------------------
#include <ntqapplication.h>
#include <ntqpushbutton.h>
int main( int argc, char **argv )
{
TQApplication a( argc, argv );
TQPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}
-------------------------------
Please try again and let us know.
Cheers
Michele
Okay. Based on your reply and a response from Gregory Guy, I replaced
the
include path
-I/usr/include/tqt/QT/
with
-I/usr/include/tqt/
and got this:
| @10:30:57,leslie@pinto.sixys.site
| ~/Documents/SourceCode/QT/Tutorial1
| $ make
|
g++ -c -O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector
-funwind-tables -fasynchronous-unwind-tables -Wall -W -O2 -DQT_NO_DEBUG
-I/usr/share/tqt3/mkspecs/default -I. -I. -I/usr/include -I/usr/include/tqt3
-I/usr/include/tqt/ -o
main.o main.cpp
| g++ -luuid -o Tutorial1
main.o -L/usr/lib64 -L/usr/lib64 -L/usr/X11R6/lib64 -luuid -ltqt -lXext -lX11 -lm
| /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld:
main.o: undefined reference to symbol '_ZN7TQGListD0Ev'
| /usr/lib64/libtqt-mt.so.3: error adding symbols: DSO missing from command
line
| collect2: error: ld returned 1 exit status
| Makefile:88: recipe for target 'Tutorial1' failed
| make: *** [Tutorial1] Error 1
So apparently I've satisfied the compiler, but not the loader. I see lots of
files beginning with 'libtqt' in /usr/lib64, and a subdirectory
called /usr/lib64/tqt3/plugins that looks like parts for a QT development
tool. Is the fix as simple as adding "DSO" somewhere in the Makefile? Such
fun...
Leslie
10:09 p.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-16 23:02:47 Leslie Turriff wrote:
Hi,
I'm trying to learn to write a GUI app using the book "C++ GUI
Programming with Qt 3", which of course is not written with Trinity in
mind, but hopefully will be enough to get me started.
:
Looking in /usr/include, I see two subdirectories related to Trinity, tqt/
and tqt3/. The first appears to be ~90% c headers, while the second seems to
be mostly c++ headers. How does one know which are appropriate for a piece
of code?
I also notice that while Tutorial1 seems to work okay with tqapplication.h
and tqpushbutton.h, there also exist ntqapplication.h and ntqpushbutton.h.
Again, how does one know which to use?
Leslie
29 Nov
29 Nov
1:39 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
I also notice that while Tutorial1 seems to work okay
with tqapplication.h
and tqpushbutton.h, there also exist ntqapplication.h and ntqpushbutton.h.
Again, how does one know which to use?
To try to keep it simple, the ntq* headers are tqt3 header files.
The tq* are the tqtinterface header files.
The tqtinterface was an intermediate layer that was born to support the migration of TDE
to qt4. In the end TDE remained
with tqt3, but the tqtinterface was already part of the code and it stayed.
If you are only interested in qt, you can use the ntq* headers, but normally we use the
tq* ones.
When you move to TDE development there will also be the TDE headers and additional
libraries needs to be linked.
Cheers
Michele
30 Nov
30 Nov
12:22 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-28 19:39:46 Michele Calgaro wrote:
Sounds like tq* is the
preferred API, but the examples all seem to use ntq*.
I also notice
that while Tutorial1 seems to work okay with
tqapplication.h and tqpushbutton.h, there also exist ntqapplication.h and
ntqpushbutton.h. Again, how does one know which to use?
To try to keep it simple, the ntq* headers are tqt3 header files.
The tq* are the tqtinterface header files.
The tqtinterface was an intermediate layer that was born to support the
migration of TDE to qt4. In the end TDE remained with tqt3, but the
tqtinterface was already part of the code and it stayed.
If you are only interested in qt,
As opposed to what?
you can use the ntq* headers, but
normally we use the tq* ones. When you move to TDE development there will
also be the TDE headers and additional libraries needs to be linked.
At this
point, I think that the TDE parts are probably way too advanced for
me. :-)
Leslie
1:55 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016/11/30 09:22 AM, Leslie Turriff wrote:
Opposed to "the
whole TDE environment"
On 2016-11-28 19:39:46 Michele Calgaro wrote:
Sounds like tq* is the
preferred API, but the examples all seem to use ntq*.
The original Qt3 framework used the q* API. In TDE, Qt3 has become TQt3, thus the tq*
API.
Since the introduction of the TQtInterface, the TQT3's tq* API has become ntq* API and
the tq* has been moved to the
TQtInterface level.
See the sketch attached, hope it helps to nuderstand better
I also
notice that while Tutorial1 seems to work okay with
tqapplication.h and tqpushbutton.h, there also exist ntqapplication.h and
ntqpushbutton.h. Again, how does one know which to use?
To try to keep it simple, the ntq* headers are tqt3 header files.
The tq* are the tqtinterface header files.
The tqtinterface was an intermediate layer that was born to support the
migration of TDE to qt4. In the end TDE remained with tqt3, but the
tqtinterface was already part of the code and it stayed.
If you are only interested in qt,
As opposed to what? you can use the ntq* headers, but
normally we use the tq* ones. When you move to TDE development there will
also be the TDE headers and additional libraries needs to be linked.
At this
point, I think that the TDE parts are probably way too advanced for
me. :-)
Leslie
2:57 a.m.
New subject: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"
On 2016-11-29 19:55:21 Michele Calgaro wrote:
On 2016/11/30 09:22 AM, Leslie Turriff wrote:
:
The original Qt3 framework used the q* API. In TDE, Qt3 has become TQt3,
thus the tq* API. Since the introduction of the TQtInterface, the TQT3's
tq* API has become ntq* API and the tq* has been moved to the TQtInterface
level.
See the sketch attached, hope it helps to nuderstand better
So,
TDE API = TDE*
TQtInterface = tq*
TQt3 = ntq* <== and I should use this one.
correct?
> Leslie
6:37 a.m.
Leslie Turriff wrote:
On 2016-11-29 19:55:21 Michele Calgaro wrote:
Leslie, feel free to use whatever suits your needs the best. Just have a
look into those files and it will be clear to you, that you can use for
what purpose.
As Michele already said
"If you are only interested in qt, you can use the ntq* headers, but
normally we use the tq* ones."
regards
On 2016/11/30 09:22 AM, Leslie Turriff wrote:
:
The original Qt3 framework used the q* API. In TDE, Qt3 has become TQt3,
thus the tq* API. Since the introduction of the TQtInterface, the TQT3's
tq* API has become ntq* API and the tq* has been moved to the
TQtInterface level.
See the sketch attached, hope it helps to nuderstand better
So,
TDE API = TDE*
TQtInterface = tq*
TQt3 = ntq* <== and I should use this one.
correct?
> > Leslie
9:12 a.m.
New subject: [Bulk] [trinity-users] Re: Struggling with "C++ GUI Programming with Qt 3"
On 2016/11/30 03:37 PM, deloptes wrote:
Leslie Turriff wrote:
Emanoil explained very well my point.
In TDE we mostly work with TDE and tqtinterface API, but since you are just starting out
with TQt, it would be easier to
start from the ntq* API and later move to TDE level. Basically the more complex an API is,
the more you need to know.
Just find out what fits the best for your current level and move forward from there ;-)
On 2016-11-29 19:55:21 Michele Calgaro wrote:
Leslie, feel free to use whatever suits your needs the best. Just have a
look into those files and it will be clear to you, that you can use for
what purpose.
As Michele already said
"If you are only interested in qt, you can use the ntq* headers, but
normally we use the tq* ones."
regards
On 2016/11/30 09:22 AM, Leslie Turriff wrote:
:
The original Qt3 framework used the q* API. In TDE, Qt3 has become TQt3,
thus the tq* API. Since the introduction of the TQtInterface, the TQT3's
tq* API has become ntq* API and the tq* has been moved to the
TQtInterface level.
See the sketch attached, hope it helps to nuderstand better
So,
TDE API = TDE*
TQtInterface = tq*
TQt3 = ntq* <== and I should use this one.
correct?
>> Leslie
2937
days inactive
2956
days old
21 comments
7 participants
participants (7)
-
deloptes -
Dr. Nikolaus Klepp -
E. Liddell -
gregory guy -
Leslie Turriff -
Michele Calgaro -
Timothy Pearson