I create a simple form in Qt designer and am trying to load it in to a Qt application I'm creating with PySide but without much luck. Here's the generated code from `pyside-uic': # -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'clientEditorForm.ui' # # Created: Tue Nov 3 23:46:41 2009 # by: PySide ui...
I am a long time MFC programmer and know it quite well. Recently we are planning for a large desktop application. In order to beat competition, one requirement is polished UI. We narrow down the choices to three: WinForms MFC QT4 We looked at some big WinForms applications, such as Paint.Net, and feel that it still lacks power of pe...
Hello I am using the Mfc to Qt migration solution, to migrate my Mfc plugin to Qt. My Mfc plugin is loaded in third party Mfc app. Basically I am using the following example Qt based Application Extension : BOOL WINAPI DllMain( HINSTANCE hInstance, DWORD dwReason, LPVOID ) { static bool ownApplication = FALSE; if ( dwReason == DLL_P...
Hi, I have directly added some QWidgets to a QToolbar but simply going widget->setVisible(false) did not work. Can someone please give me an example of how to show and hide a widget that is on a QToolbar? Thanks! ...
Hi Currently our all GUI component are written in MFC, Out build environment is : VC 6 Windows XP I have no idea about : 1) If we can replace all MFC components with QT, without changing build environment ? 2) Will Qt work with VC6 as any other library ? You answers will help me in getting started, In mean time i have i...
A friend of mine and myself are working on this application for QT4. Each of us has created parts of the gui that work. I am trying to integrate his work into the main window of the gui (his work is another form that should load up). As of now this is the code I am using to try and load his second window: //connect buttons and such c...
i want a table cell to have just an icon without any text. i see the QTableWidgetItem class has a method to align the text (int QTableWidgetItem::textAlignment () const) i find no way to adjust the placement of the icon (which seems to get stuck on the left -- even where there is no text in the cell) look at the Status and Energy colu...
The solution may be simple. Then again it may not be possible. I have the base callback class: class CFCallback { int command_; int transfer_rate_; public: CFCallback(int command, int transfer_rate = 0) { command_ = command; transfer_rate_ = transfer_rate; } virtual ~CFCallback() {} virtual void operator...
I'm building client/server apllication on QT. I just want user to execute only one application per a machine. I've heard MUTEX can be used for those kind of situation. Does anyone get some tips on MUTEX or anything else? Thanks. ...
I want to create a program, which gets a video-file from Qt, converts that video file to TIFF-files and sends them to an algorithm which handles these TIFF-Files. My questions: is it possible with ffmpeg or avcodec not to convert a video-file to TIFF-files first on harddrive and send them to the algorithm after that, but to convert f...
When I call QObject::findChildren(), the address I receive is not the right address but it points to an exact copy of what im looking for. This error happens for the only case where im trying to find a custom widget plugin I have created. Whats up with that...do i need to add something to the plugin project? ...
I've created a child class of QTreeWidget that I want to be able to drag items from another tree widget too (I want to handle the insertion myself though), as well as from a QListWidget. I've overridden the dropEvent method in my class, and it looks like the mimetype of the data I'm getting from my QTreeWidget is application/x-qabstract...
I am dealing with Sql Server and Oracle through Qt, when using QSqlDatabase::transaction() on a database connection. When another user/connection has a transaction open on the same database does the transaction() call block until the other transaction is finished or fail ? ...
Hi All, I have a big Qt project, splitted on several static libraries (around 70) and one application, and for that I'm using a .pro file with the subdirs template. To speed up the compilations time, I want to use precompiled headers and found that using the PRECOMPILED_HEADER on each sub-project does the trick, BUT, every project co...
I'd like to know what happens exactly when I call a QWidget's update() method. Here is the documentation: http://doc.trolltech.com/4.5/qwidget.html#update This function does not cause an immediate repaint; instead it schedules a paint event for processing when Qt returns to the main event loop. This permits Qt to optimize fo...
Hi, I'm having big troubles with drag & drop. I've created a new Qt Designer Form Class in which I have one QListWidget and one QWidget. Now I want to enable dragging & dropping between these two widgets. The problem is, where can I add dragEnterEven(...), dragMoveEvent(...) etc. functions? I only have these class.h, class.cpp and clas...
I'm working on a small project in QT (well, pyQT4 actually, but it shouldn't matter too much) and I've run into the following problem. I have a QTableView with several rows and columns. I have set the selection mode to be rows only. When I call getSelectedIndexes() on my QTableView, I get an index for every row and column, which in the c...
I am a newbie who is trying to use the QT creator, I installed the latest version "qt-win-opensource-4.5.1-mingw". Everything was working fine except for launching the QT Designer .. I don't really know what is the exact problem .. but whenever I try to edit my project visually or even to launch the QT Designer itself, the windows pops u...
Hi, I am very new to using QT4. I am trying to use sql in an already working application. However, when I try to compile I get this error: "‘QSqlDatabase’ was not declared in this scope." Here is the relevent code: #include <QtSql> QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL"); db.setHostName("bigblue"); db.setDatabaseName...
I want to use an older code-fragment in my Qt-project, which is using WinSocks. I created my program with Qt Creator and I don't know, how I can link to the ws2_32-Library. I already added LIBS += -lws2_32 to my .pro, but nothing happened. So how can I link to this library? edit: Where can I find the ws2_32.lib to include it? Do I have...