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Month: November 2016

Re: [trinity-users] Struggling with "C++ GUI Programming with Qt 3"

From: "E. Liddell" <ejlddll@...>
Date: Sun, 27 Nov 2016 09:40:57 -0500
On Sun, 27 Nov 2016 06:37:01 -0600
Leslie Turriff <jlturriff@...> 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.
> 
> > @06:32:33,leslie@...
> > ~/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

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