[qt] Forum Topics

Hello folks,i am teaching myself qt and i have run into a problem.In my data entry application,i want to bind my forms to my grid explained in this picture: [URL=http://imgur.com/KeNTI][IMG]http://i.imgur.com/KeNTI.png[/IMG][/URL] Right now,i am scratching my head plotting on how i am gonna accomplish this. Ideas are welcome.

I was just able to get PyQt4 to work on my system, and I'm now have that of python2.6, and that of python 3.2, but I have been trying to open Qt designer but all it does is just open a process in the background eating up my PCs memory, …

I was surfing net for updates and I found Mobile Hands-on Lab v1.5. It has modules that cover Qt, Web Development and Java Me. It give an outline to the module contents, explains the Development Environment, describes the key aspects of the programming language, also provides with an optional brief …

I have VS 2008, and QT. I wanted to know if I could include the .NET Framework and QT Framework in one application. How do you do this? Help!

I'm new to [B]Qt[/B]. What resources do you recommend for learning Qt? Thanks.

When trying to run a simple `Qt program`, I get the following erros: (How can I solve them?) [CODE]In function `WinMain@16': c:/Qt/2010.05/qt/lib/libqtmaind.a(qtmain_win.o)[/CODE] [CODE]error: undefined reference to `_Unwind_Resume: C:\qt-greenhouse\Trolltech\Code_less_create_more\Trolltech\Code_less_create_more\Troll\4.6\qt\src\winmain/qtmain_win.cpp:93[/CODE] [CODE]error: undefined reference to `_Unwind_Resume': C:\qt-greenhouse\Trolltech\Code_less_create_more\Trolltech\Code_less_create_more\Troll\4.6\qt\src\winmain/qtmain_win.cpp:135[/CODE] [CODE]error: collect2: ld returned 1 exit status[/CODE] Thanks.

[URL="http://www.pyside.org/"]PySide[/URL]: Python for Qt 1.0 released! The PySide team is thrilled to announce the release of PySide: Python for Qt version 1.0.0. In addition to the source code release, project community packagers have already released binary packages [developer.qt.nokia.com] for all major Linux distributions, Microsoft Windows, Mac OS X, and Nokia’s …

Please I downloaded the latest version of python QT but I've been unable to use because i don't know how, help from the experts in the house. Thanks in advance

0 down vote favorite I'm new to Qt, and trying to compile and run this Qt program I typed from the [I]Programming with Qt[/I] book: [CODE]#include <qapplication.h> #include <qlabel.h> int main(int argc, char *argv[]) { QApplication myapp(argc, argv); QLabel *mylabel = new QLabel("Hello",0); mylabel->resize(120,30); myapp.setMainWidget(mylabel); mylabel->show(); return myapp.exec(); }[/CODE] When …

Hi, I am starting to make programs with GUI, so with buttons, frames etc, and some of them will work via internet, like multyplayer card game or something like that. So during my search, I ran onto few choices, Qt, Win32 api, wxWidget and by most forums the Qt is …

Hello, I'm working with a team on a program and freeglut is causing trouble for one of team members. He's the only member working under Windows and he's unable to get the scroll wheel to work. Does anyone know a library for windows that'll read in the mouse wheel input …

Hello! I am trying to create a tabbed program with Pyqt4. The idea is that I want to be able to add python scripts in a folder. Those scritps should be then be accessible from a main framework/program. Finally, when I run the python script I want the window to …

Hai guys, I am a newbie here, maybe you know about my problem. this is VB source code : [COLOR="Red"][B]ReDim[/B][/COLOR] parent.Individuals(maxPop) As Individual [COLOR="Red"][B]ReDim[/B][/COLOR] offspring.Individuals(maxPop) As Individual Do While bil < maxPop bil_gen = 0 [COLOR="Red"][B]ReDim[/B][/COLOR] parent.Individuals(bil).Gen(batas_gen) As Genetik parent.Individuals(bil).Genome = AssignValue(1) List3.AddItem parent.Individuals(bil).Genome bil = bil + 1 Loop …

Hi, I'm looking for a good book on Qt 4 programming, I checked both chapters and amazon but couldn't locate a Qt book with favorable reviews and was wondering if the daniweb members knew of a good text...Thanks in advance. Gerard4143

Hello, Currently, I am trying to write a program which should upload a file to an FTP server. As recommended in the QT Docu., I chose to use QNetworkAccessManager's put function instead of QFtp. As far as I know, I should be able to access the FTP Server without using …

Hi, I'd like to add a GUI to one of my C++ codes. As the software should run under Linux and Windows I think about using QT. A special requirement is that I'd like to visualize 3D objects (triangular meshes). It should be possible to turn and zoom the objects, …

Alright guys, I'm in quite a situation. I have a project for school to create an application in C++ that can create and generate shopping dockets/receipts. This includes being able to add the names of the items, the prices, and then finding the total price of the purchase. We can …

SORRY FOR THE NOOB QUESTION, but until some time ago (1 or 2 weeks) all my programs we comand-line, so I didn't have to... build them(?) But some days ago, i decided to create a program with GUI, and I used QT creator for that. Now My program is finished, …

I'm trying to turn my PyQt4 into a .exe in order to give it my end users. I'm so-so familiar with cx-freeze and I know how to use Innosetup. My problem is that when run from the command line my Qt application uses the icon correctly. After I freeze the …

Delving into modelview programming became complicated after seeing few explanations of the structure involving an editable model; Perusing through forums, source and documentation is only leading me so far. My issue currently is trying to edit a tableview header (subclass) entry using a custom delegate. I've seen implementations using an …

Hi all! I have a question about PyQT4. How can I get an index of current cell, in which the cursor is whitout clicking on it? According to official documentation of QT there are only signals that send current index when you click on it. But if you just enter …

i just downloaded qt and i dont know how to build in qt, it keeps saying: Could not find make command: mingw32-make.exe in the build environment Error while building project case (target: Desktop) When executing build step 'Make' Could not find make command: mingw32-make.exe in the build environment Error while …

HI I have a Map Image that I got from OpenstreetMap(Osmarender Image ) .My question is how to convert geographic coordinates to the co-ordinates of my picture (that is in pixels on X and Y on a picture). That is I receive geographic coordinates and it is necessary for me …

What I really wanted was a single class, ImageSegmentation<T> that operates on images of type T. The problem was that this object needed to be a member of my Qt form object (called Form), but I didn't know T until runtime (the user selects which type of image to operate …

Hi everyone, I am working on a 3D viewer using libQGLViewer. In all of the examples provided, the main function looks something like this: [CODE] int main(int argc, char** argv){ QApplication application(argc, argv); Viewer viewer; #if QT_VERSION < 0x040000 application.setMainWidget(&viewer); #else viewer.setWindowTitle("pointCloud"); #endif viewer.show(); return(g_qApplication.exec()); //waits for Esc } [/CODE] …

I need help with a py generated file that was made in QT. I use the following line [CODE]QtGui.QTabWidget.addTab(self.tabWidget, QtGui.qApp.tr("New Tab"))[/CODE] and get this error [CODE]Traceback (most recent call last): File "C:\python\mainwindow2.py", line 349, in createInvoice QtGui.QTabWidget.addTab(self.tabWidget, QtGui.qApp.tr("New Tab")) TypeError: arguments did not match any overloaded call: QTabWidget.addTab(QWidget, QString): argument …

I have been trying to no avail to load a ui file and insert it into a tabWidget as a new tab. I commented out a try that I thought would work, I was wrong. I have tried several different ways but I always seem to get the same error. …

Hi Guys! A newbie and a student here. I want to ask your assistance by being my respondent just to answer the following few survey questions here below. This will help me a lot for the completion of my project in Mobile Programming Subject which is one of my major …

I am having a problem using the common dialog in PyQT. For some reason, when I try and import 'QFileDialog', I get a not found error, same with importing QDialog. I am on Py 2.7 (was 2.6) using 'PyQt-Py2.7-x86-gpl-4.8.2-1'. I can import QTCore and QTGui just fine. I thought PyQT4 …

Hi... I want to start with PyQt and I don't from where should I beggin !! I'm using Fedora Linux 14 !

Hi all, I want to make my own widgets in c++, but don't know where to start. I didn't find any examples, tutorials,... on google. I know there are some toolkits like qt, gtk+, wxwidgets, and i've used them already, but i want to make some myself. Qt says to …

Hey, I have a bit of a problem. I have a class that uses C libraries to make a TCP connection, which is accomplished with the connect() function. Now, I'd like to use this class in a Qt program and make it inherit QObject. The problem is, since I need …

Hi all, I am trying to modify sqliteman. I need to add a module able to import plug ins made in python. Mainly, this is in order to have some sort of powered Excel where data are stored in a DB and macro are written in Python and can have …

Hi, I recently filmed a school nativity, I edited in final cut, exported to QT, created the DVD menu in iDVD and burned most disks from there. I copied a selection of the disks in the schools disk copier to save time. Some of the DVD's when played contain a …

Hey, I'm trying to compile a simple producer-consumer program with Qt, using QThreads. I get this error message when trying to compile: [CODE] In file included from /usr/include/qt4/QtCore/QThread:1, from producer.h:4, from mainwindow.cpp:3: /usr/include/qt4/QtCore/qobject.h: In copy constructor ‘QThread::QThread(const QThread&)’: /usr/include/qt4/QtCore/qobject.h:309: error: ‘QObject::QObject(const QObject&)’ is private /usr/include/qt4/QtCore/qthread.h:60: error: within this context In …

Hi i am new to qt but i have programing experience in c++ in dev - c++ after i moved to qt i thought i could start like this if i press a button it should output hello world it is just showing me 1 error system was not declared …

Dear Friends I am facing some problems in deploying my application for lower version of qt. Basically i want to generate scripts for my application and I have chosen pythonqt for this purpose. Pythonqt has the problem with lower version of Qt (Qt 4.5.2) and also with Higher version of …

I'm not a huge contributor on these forums, but I do read a lot. Anyhow, I have "completed" a couple things I've been working on in the last couple weeks, and thought I would share. [url]https://bitbucket.org/jgrigonis/mortgagecalculator[/url] A simple mortgage calculator written in python using tkinter that lets you calculate any …

I am trying to use Qt 4.0 with devCpp. I have a weird error when i try to compile this simple code : [code] #include <QtGui/QApplication> int main(int argc, char *argv[]) { QApplication qApp(argc, argv); return qApp.exec(); } [/code] The error is : [code] 10 : no matching function for …

Hi I wanted to start a project on implementing packet sniffer. Though I have fairly good experience of C++ programming and network protocols( theoretical), I am not able to get start with this. How should I approach towards it. What libraries or resources should be helpful ? Would Qt be …

How to remove first few bytes in files concept in qt3 designer

Hi, I have just installed CPLEX, and this has installed correctly. It put it's header files under: /home/dorien/ILOG/..../include/ Now I am trying to compile an example, which has: [CODE]#include <ilcplex/ilocplex.h>[/CODE] but I got: [CODE]/home/dorien/C++/cplex-build-desktop/../cplex/main.cpp:35: error: ilcplex/ilocplex.h: No such file or directory[/CODE] First thing I did was lose the .h... to …

I downloaded data from google.com/favicon.ico and saved it in a file "icon.png" using the following: [CODE]URL url=new URL("http://www.google.com/favicon.ico"); InputStream ss=url.openStream(); byte bytes[]=new byte[100000]; int offset = 0; int numRead = 0; while (offset < bytes.length && (numRead=ss.read(bytes, offset, bytes.length-offset)) >= 0) { offset += numRead; } FileOutputStream out=new FileOutputStream("icon.png"); out.write(bytes);[/CODE] …

i have to crreate a splash screen to display messages at various instance of my project .So any one can provide me an example how to create a singleton instance for the creation of Qt widgets.

Morning guys, I've almost finished a new site i'm doing for a client but there's a few points that are causing me a headache and they're all related to the same thing. I've searched everywhere on the web for an answer and I'm beginning to think that there isn't one …

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heyy guys wats up !?? i am trying to convert a list(c++) in qt list... i have no idea how i can do that.... the list is a list of employee objects.... (id , name, rate) i want a list of qtlist which containts the employee objects or at least …

Hello Im new to qt and I have a problem, I am trying to connect a radio button to a signal and a slot that have different number of arguments,I know this is not possible, is the any way to get around it? [code=c]here is my code: void myclass::createbutton() { …

Hi, Im trying to do a screen-flashing application, that flashes the screen according to the music(which will be frequencies, such as healing frequencies, etc...). I already made the player and know how will I make the screen flash, but I need to make the screen flash super fast according to …

Im trying to do a screen-flashing application that flashes the screen depending on the audio(like an audio visualizer, but instead of a visualization like bars or something like that, just flash the screen). I already made the music player and know how to make the widget get full screen and …