459 Topics
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 | I recently made an appication that utilizes pyqt , i could say i wrote the code pythonic and made everything work work as I wanted, but didnt used any data model , so later I realized I could have used data model since I am building list in the QListView … |
| | I have made an standalone app inheriting from base class `QtGui.QFrame`, and now i want to add a floating toolbar to it the way I could have in QMainWindow, how should I do it ?  |
 | Hi everyone, Heres my problem: I've installed Qt 4, and there is **no** qmysql.dll/.a in C:\Qt\4.8.4\plugins\sqldrivers\. I am running a MySQL database program and I get Database error: Driver not loaded. Theres not really a lot of help anywhere on google so hopefully DaniWeb will yet again prove itself as … |
| | hi I've just started learning C# and I 'm working with excersice . There is something wrong with my add and remove button , but I don't know how to fix it here is the begining of my code and I'm sure that it correct also I have Item and … |
| | hi I'm using VS express for web and I'm using C# I know how to replace value in arrraylist in java , but I found it hard to do it in c# in the designe view in VS I have add button and textBox.. first I need to get what …  |
| | Hello all a bit of a navel gazing post but I could do with bouncing some opinion off of some people. Excuse the long post. A quick bit of background. I'm 32 and have been programming for about 10 years on and off. My degrees are all in applied mathematics … |
| | first of all, sorry if this thread is in the wrong section, but i think this is the most appropiate one i need clear instructions for installing AND configuring QT for my machine(i am running windows 7 on 64bit) i don't want other reference links unless they perfectly suit my … |
| | Hello, I have got [this](http://www.yasinuludag.com/darkorange.stylesheet) a Qt stylesheet, how do I load it to my PyQt module after creating a QString Object. if I do from PyQt4 import QtCore s = QtCore.QString('c:\myProject\darkFantasy.stylesheet') the above code loads the path string rather than the actual stylesheet. So how do I load the … |
| | Right everyone, here's my problem. I have just paid £45 for a book on Qt, have had a nightmere getting it sorted, and finally I can build apps to this extent... I have an app, *test.pro*. I have built it using `qmake test.pro` -> `make` which works. I am using … |
| | Hi there, I'm just a hobbyist teaching myself python but I am making progress with the help of "Rapid GUI Programming with Python and QT". I have written what is probably a very poorly designed programme which does just about what I want but when it's closed the process continues … |
| | from PySide import QtCore,QtGui import sys class ToolBarUI(QtGui.QMainWindow): def __init__(self,*args,**kwargs): super(ToolBarUI,self).__init__(*args,**kwargs) self.floatingToolBar() pass def buttons(self): self.btnVLay=QtGui.QVBoxLayout() self.incSavbtn=QtGui.QPushButton("Save") self.emailbtn=QtGui.QPushButton("Email") self.upldbtn=QtGui.QPushButton("Upload") self.setPrjbtn=QtGui.QPushButton("Set Project") self.setThumb=QtGui.QPushButton("Set thumb") self.shwMatbtn=QtGui.QPushButton("Show Material") self.fixtexbtn=QtGui.QPushButton("Fix Texture Paths") btns = [self.incSavbtn,self.emailbtn,self.upldbtn,self.setPrjbtn,self.setPrjbtn,self.setThumb,self.shwMatbtn,self.fixtexbtn] [self.btnVLay.addWidget(each) for each in btns] def floatingToolBar(self): self.buttons() self.setLayout(self.btnVLay) self.show() pass if __name__ =='__main__': app = QtGui.QApplication(sys.argv) app.setStyle("cleanlooks") win … |
| | Hi, I'm not sure what forum to stick this in but seeing as the test was in C++ I thought I'd stick it here but feel free to move. I recently completed a test for a job application. I completed 2 out of the 3 questions (it was a choose …  |
| | Hello all, A simple problem for anyone who know Qt, I'm very new to Qt and GUI programming in general. I’m on a linux platform and using Qtcreator. I have a window (see [here](http://1.bp.blogspot.com/-QM3EiY3oh5Q/UMeo8rb4fUI/AAAAAAAAAWY/tWPLdEl6OgM/s320/box.png) for a screen shot). I wish to have two "sub regions" (incorrect terminology I’m sure) within … |
 | So, let's say i have this on a file: #include "MyFolder1\MyFile1.txt" #include "MyFolder1\MyFolder1SubFolder\MySubFile1.txt" #include "MyFolder2\MyFolder2Sub\MyFolder3Sub\MySubFile1.txt" What i'm trying to do is to make a project tree, it's well explained on the sample up there. But the issue is, should i be using [QTreeWidget](http://qt-project.org/doc/qt-4.8/qtreewidget.html) or [QTreeView ](http://qt-project.org/doc/qt-4.8/qtreeview.html) for it? But that's …  |
| | Hello There, I am currently making a small game in c++ and Qt. In the game, an npc call's the Wander() function which makes it randomly wander around. However, only one of these npc's can call the Wander() function at any one time - Is there a way around this? …  |
 | in this program i'm writing the functions that have qt classes as parameters Qlabel, QSpinbox, etc. are causing compile errors, my other functions work fine i get the same 2 errors for each QT object i use as an argument this is the function definition that uses QT classes as … |
 | I apologize for the inconvenience this not a Qt question. I am using a library in my Qt application which is built and generated by lex and yacc compiler. When I am calling first time the function it’s working fine, a good file. Next time running a bad file from … |
| | hi everyone :) i dont know where i am doing it wrong...but cant upload my file...there is no error but its not saving the whole path in DB and not uploading anything in the directroy as well... please point me to riht direction tahnx :) <?php include("../includes/config.php");?> <?php $mediafile = … |
| | can you give me a very simple qtwebkit example that explain how it works and how to use it? |
| | I've been looking for a way to work with polynomials using python, did someone already wrote a code to do that?. Here's what i have until now using dictionaries as polynomials -for example: x^4-6x^2+1 would be {4:1, 2:-6, 0:1}-, someone have any suggestion to make? def degree(f): t = sorted(f.keys()) … |
| | Installing Eric4 on Windows 7, 32 Bit; using MS VS C++ 2010 After much ado and trial-and-error I was able to get it installed, via the following steps: Command-prompt run as administrator in all cases All packages installed in the root of C:\ After changing each environment variable, update command-prompt … |
| | Hello everybody... I have been using c++ for a while for console applications, but now I need to make a simulation of a soda factory, implementing multi-threading and GUI. I was using Dev c++ for console apps, and I tried to install some dev-packs for multi-threading and GUI development as …  |
| | Am I correctly including all the library files from the directory ?? LIBS += `"C:\openCV24\opencv_bin\lib\*.dll"` Because this line keeps on giving me `C:\openCV24\opencv_bin\install\lib*.dll: Invalid argument` Ive tried looking several places and have altered this line many times but cant seem to get it to work. Can someone please let me … |
| | I have a class orders which has its instanced stored in a QMap/Map and has a Key:int, value:order pattern. Everything went fine until I started iterating through the map and accessing the functions of the class.First I was trying to print out the order objects values using it's getter methods … |
| | Ive got a basic Qt console application whcih write and then reads back an xml document.I have compiled and ran this without any compilation errors, however for some reason it keeps returning an error code and then wipes clean the actual xml document ??? Can someone please explain why it … |
| | I am using C++/Qt4.3.0.Here I am exporting an html report to .doc file containing some images that are created at run time.For that, I have used html and then inserted the html text to QString and then to QTextEdit..Now I want to make this .doc file system independent so the … |
| | Ive just started going through and developing basic applications using the win32 API, and couple of times I have come across people mentioning that directly using win32 is not wise...I've just started using the library and personally think its nice and easy to use. However Ive been seeing things like …  |
| | How to store and retrieve an image in MS Access with OLE object Datatype using C++/Qt.I have searched a lot but everywhere found visual basic and VB.net codes..Can I have a code to do it in C++ with Qt. |
| | I have installed Qt on my ubuntu laptop and I get nothing but errors compiling .cpp files with <QApplication> preprocessor directives. I am new to using Qt and are reading a book online about it hosted here: http://www.informit.com/articles/article.aspx?p=1405562 Specific error i have obtained running g++ hello.cpp -o hello: hello.cpp:1:24: fatal … |
| | Hello again, I have been posting consecutively in these days nearly same topics, actually I am intern at a sofware company and our company ask to perform the proof of conception about sending voice call -at the beginning- and finally video calls, like walkie talkie application; as you have already … |
| | Hello I’m new to QT and C++, my primary language is JAVA (and I’m still a novice at that) But I want to learn how to use QT and C++ combined and create some awesome GUI programs I have a Bioinformatics program that reads a DNA sequence from a text … |
 | Hi there everyone... Allright my setting is this: I have written an C++ application that receives input from a user app, converts it to XML, and then posts it to our ERP (Syspro) through e.net COM objects using ActiveQt and in specific QAxObject... The problem is this: QAxObject inherits from … |
| | a small video editing Application using the core of GIMP and Audacity.... libraries that will embed GTk+ and wxWidgets... Which one will you go for?... I am fairly proefficient with Qt |
| | Hey Everybody, Allright my setting is like this: I created a derived MVC program using C++ and QT on Visual Studio 2008, that sends multiple instructions to our ERP system through an external program... On each command posted this way the user application needs to wait for a return string … |
 | Please i need help with this piece of Qt code. It gives a compiled error "**empList' was not declared in this scope**" in the getValue() function. This has got me stucked for a couple of weeks now retarding the pace i'm learning the language. I would gladly appreciate any assistance. … |
 | hi guys, im curious about c++ gui qt , the i searched for it and download QT opensource 4.8.2 (300mb+) for windows i run the installer, then it asked me for MinGw's directory in my pc, then i use the MinGw inside my codeblock, after that it said "Found version … |
 | Hi, I just installed PyQt Designer to start creating UI's with python, I've used WxPython and TKinter before, but never really done anything with PyQt. So for some of you this might be a very simple question that I can't seem to find with google. I really like how it … |
| | Hello 'am working in qt creator but have problem running my code. It compiles alright but never executes. And also gives the following message at the output pane 'exited at code -1073741819' Please help me out |
| | Please how do i write comments in a .qrc file in qt c++. I found out the normal c++ comment styles doesn't work. Please i need help. |
| | Hi. So I get this weird error message out from a QT application that i'm creating: 0xc0000005: read access violation at: 0x0, flags=0x0 Basically what I'm trying to do is to set in a QT List Widget an item of type QList Widget Item in which I store two things: … |
 | what QObject: Cannot create children for a parent that is in a different thread. (Parent is QTextDocument(0x905b660), parent's thread is QThread(0x8efc560), current thread is flooderthread(0x8efc548) error means ? and how to solve it?? |
| | hey all I've searched all over the web and i didn't get a solution! what should i do to take the text from the 'urlT' line edit? is there another way? Nameerror "global name 'self' is not defined" whats wrong with it? [CODE] from PyQt4 import QtCore, QtGui class Ui_MainWindow(object): … |
| | Hi there, I'm writing some application based on Qt and C++ and I've reached the problem. How to display window via clicking, triggering, etc. I wrote some code: //---------------------------- // THIS IS IN mainwindow.h //---------------------------- #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> namespace Ui { class MainWindow; } class MainWindow : … |
 | I'm just wondering if the below is true? I pulled this from another forum. Does this mean that a application using qt4 can be built and used in a bank without getting permission or paying fees for it's use? *The Framework is freely available for Windows, Linux, MacOS X, and … |
 | i have a Qt code writed in C++ . i want translate it to python code, but i have a problem in 4 code line: all code is: void TableView::print(QPainter* painter, const QRect& area) { const int rows = model()->rowCount(); const int cols = model()->columnCount(); // calculate the total width/height …  |
| | Have some problems with the qt destructor. I'm working on QtCreator: here's the class: the .cpp #include "controller.h" Controller::Controller() { } Controller::Controller(MovieRepo *movrep, MovieValidator *movval){ this->movrep=movrep; this->movval=movval; } void Controller::addMov(int id, string title, string desc, string type)throw(ValidatorException){ Movie* mov=new Movie(id, title, desc, type); movval->validate(*mov); movrep->store(*mov); } const Movie* Controller::getById(int id){ … |
| | hey i heard that there is something called qt signals you can use it to change the GUI out side the main thread coz when i try to change it i get an error that i cant change the gui out of the main thread but i need it to … |
| | I'm trying to print the contents of a QTableView to the printer . i implement bottom script and it run successfully without any error. but all data are Unusual in printPreview. this is [pic](http://img4up.com/up2/75917679167425743216.png) from my problem -[FOUNTAIN](http://www.qtcentre.org/threads/3796-QTableView-printing?highlight=Qprinter) def printTable(self,printer,painter,area): model = self.model myTableView = self.view printer = painter rows … |
 | Hi guys, I am having a small problem on using QNetworkAccessManager in QThread. The error message is: "Object::connect: No such slot QThread::replyFinished(QNetworkrReply\*)" And my code is header class SSLReceive : public QThread { //Q_OBJECT public slots: void replyFinished(QNetworkReply* net_reply); protected: void run(); private: void initialize(); QNetworkAccessManager* manager; QSslConfiguration config; }; … |
| | Hi there, I installed Qt on my Windows 7 machine and I tried to configure CMake but ran into this error: CMake Error at C:/Program Files/CMake 2.8/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:91 (MESSAGE): Could NOT find Qt4 (missing: QT_QMAKE_EXECUTABLE QT_MOC_EXECUTABLE QT_RCC_EXECUTABLE QT_INCLUDE_DIR QT_LIBRARY_DIR QT_QTCORE_INCLUDE_DIR QT_QTCORE_LIBRARY QT_QTGUI_INCLUDE_DIR QT_QTGUI_LIBRARY QT_QTOPENGL_INCLUDE_DIR QT_QTOPENGL_LIBRARY QT_UIC_EXECUTABLE) Call Stack (most recent call … |
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