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 Dynamic library

 by michalkuchta on: Mar 4 2008
Score 50%

Hi I have problem compiling plugandpaint (Plug & Paint Example) program belong to QT examples. I see this errors:
g++ -o plugandpaint main.o mainwindow.o paintarea.o plugindialog.o moc_mainwindow.o moc_paintarea.o moc_plugindialog.o -L/usr/lib -L/examples/tools/plugandpaint/plugins -l libpnp_basictools -lQtGui -L/usr/lib -L/usr/X11R6/lib -lpng -lSM -lICE -pthread -pthread -lXi -lXrender -lXrandr -lXfixes -lXcursor -lXinerama -lfreetype -lfontconfig -lXext -lX11 -lQtCore -lz -lm -pthread -lgthread-2.0 -lrt -lglib-2.0 -ldl -lpthread
/usr/lib/gcc/i586-suse-linux/4.2.1/../../../../i586-suse-linux/bin/ld: cannot find -llibpnp_basictools

Structure of directory:
michal@michal-komp:/mnt/dane/Udostepnione/MyDownloads/qt-x11-opensource-src-4.3.4/examples/tools/plugandpaint> ls -l
razem 168
-rw-r--r-- 1 michal users 3647 II 19 18:47 interfaces.h
-rw-r--r-- 1 michal users 2380 II 19 18:47 main.cpp
-rw-r--r-- 1 michal users 3160 III 4 10:12 main.o
-rw-r--r-- 1 michal users 9748 II 19 18:47 mainwindow.cpp
-rw-r--r-- 1 michal users 3367 II 19 18:47 mainwindow.h
-rw-r--r-- 1 michal users 26748 III 4 10:13 mainwindow.o
-rw-r--r-- 1 michal users 11936 III 4 10:12 Makefile
-rw-r--r-- 1 michal users 2733 III 4 10:13 moc_mainwindow.cpp
-rw-r--r-- 1 michal users 9452 III 4 10:13 moc_mainwindow.o
-rw-r--r-- 1 michal users 1700 III 4 10:13 moc_paintarea.cpp
-rw-r--r-- 1 michal users 7508 III 4 10:13 moc_paintarea.o
-rw-r--r-- 1 michal users 1742 III 4 10:13 moc_plugindialog.cpp
-rw-r--r-- 1 michal users 7516 III 4 10:13 moc_plugindialog.o
-rw-r--r-- 1 michal users 6063 II 19 18:47 paintarea.cpp
-rw-r--r-- 1 michal users 3328 II 19 18:47 paintarea.h
-rw-r--r-- 1 michal users 10948 III 4 10:13 paintarea.o
-rw-r--r-- 1 michal users 753 III 4 09:54 plugandpaint.pro
-rw-r--r-- 1 michal users 5880 II 19 18:47 plugindialog.cpp
-rw-r--r-- 1 michal users 2895 II 19 18:47 plugindialog.h
-rw-r--r-- 1 michal users 15400 III 4 10:13 plugindialog.o
drwxr-xr-x 2 michal users 4096 III 4 10:12 plugins
michal@michal-komp:/mnt/dane/Udostepnione/MyDownloads/qt-x11-opensource-src-4.3.4/examples/tools/plugandpaint> cd plugins/
michal@michal-komp:/mnt/dane/Udostepnione/MyDownloads/qt-x11-opensource-src-4.3.4/examples/tools/plugandpaint/plugins> ls -l
razem 60
-rw-r--r-- 1 michal users 36174 III 4 10:12 libpnp_basictools.a
-rwxr-xr-x 1 michal users 24090 III 4 10:12 libpnp_extrafilters.so

OS: OpenSUSE 10.3
QT: 4.3.3

Please help!

...sorry for badly english...
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 new to qt, help need

 by swamyonline on: May 17 2008
Score 50%
Real Time Software Development

hi friends,
i used qt-3 for some applications under linux. now, iam trying to develop real time data display app under qt-4. the application will receive data (some x,y,z etc) from on ethernet and display it with 1 sec update. my problem is, which qt class can i use for flicker free, flexible display. i also need to draw pixels of data on display with zoom facility. previously i used, painter class. but it was not that much effective in drawing the pixels on screen when its resized.

can anybody suggest the better way of doing this in qt-4. code snippets, or sample applications will help me a lot to learn and develop my new application.

thank u very much in advance..bye

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 Alignment in a QTreeView

 by cydside on: Jun 12 2008
Score 50%

Hi to all,
the standard text alignment in a QTreeView is AlignLeft, how can I set an AlignRight?


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 Using QT for Digital TV menu s

 by mittalpa on: Jul 1 2008
Score 50%

I received this ambitious requirement of developing a menu system for Digital TV. Sounds very interesting work; but I am from pure Mirosoft.Net world. So, I need some help in figuring out a feasible solution.

Here are few very high level requirements:
- The system should run on Windows, Linux, Mobile and Macintosh. So far, I think it has to be a desktop style app not browser based due to very high speed and visual quality requirements.
- The system should have a light-weight mechanism (database or files?) of storing/updating data.
- The system should have ability to connect to internet for data updates or what not.

What are hardware components options? Basically, where will the system be eventually deployed in TV?
What are the options for runtime environment? (O/S, runtime library, data storage etc)
What are the options for development? (Language, IDE, database etc)
What are the deployment options?

Someone suggested me to check out QT for developing it so here I am. Please advice.


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 Qt standby / hibernate

 by rensdenobel on: Oct 13 2008
Score 50%

Hi !

I'm trying to figure out how to handle standby / hibernate system events on windows / mac / linux using Qt.

Qt has the QSessionManager which deals with things like that but it doesn't notify about standby / hibernate events.

Qt guidelines state that handling stanby / hibernate shouldn't be necessary in an application. However, I'm building a chatclient that should disconnect from the server on standby and reconnect when the computer resumes.

Anybody with tips for handling standby / hibernate in Qt ?

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 need help in creating a widget

 by sh123 on: Jan 7 2009
Score 50%
gauranga infotech

need help in creating a widget similar to thermometer.please help

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 Re: need help in creating a widget

 by thomas12777 on: Mar 7 2009
Score 50%

what help in particular?

you probably want to inherit QAbstractSlider, reimplement paintEvent() and connect setValue() to your "sensor"

but 1st, you should explain you problem a little more detailed...

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