Forum: Qt Programming

Hello everyone. I've an unusual mistake connecting to a MS Access database. If I execute the .exe by clicking it twice directly from the windows...

I've got a context menu whose triggered() signal I've connected to another widget's slot, and this works fine. But I want to send some more...

I need to allocate a chunk of memory for reading and writing data. I notice that Qt has a QSharedMemory class, which seems to do just that. But how...

Hello. Now I have a problem when using QSqlQueryModel or QSqlTableModel. I installed an open-source version of Qt 4.6.2 for VS2008 and Qt 1.4.4...

Source code found in Files.tar.gz Okay, I do not have much experience with C++ or QT. This issue has been kicking my ass for a long time, so I...

I am still learning QT, I read somewhere that it is more portable to use Q_SIGNAL(S) instead of signal(s) in case the code is going to use 3rd party...

Hi QT community. I have a QDockWidget, which has a QFrame inside it (it's actually a QScrollArea) and I need to change their styles according to...

Dear Gurus, Suppose I have a table model that I view in a QTableView (A). In another QTableView (B) I want to display the rows that are selected...

Good day everyone I wrote a simple QGraphicsView, QGraphicsScene application that loads image file and add it to QGraphicsPixmapItem, I then can...

I want to set the background for the editor (not the placeholder display created by the paint method) of an Item Delegate. I'm using the...

I'm new to Qt and I'd be glad to know how to save a video (in for example the avi format) upon a image/pixmap sequence (for example some pixmaps I...

Hi, I am developing QT based non-GUI code (using QT events, shared memory, logging, etc). I want to unit test this code using boost unit test...

Why Qt4 doesn't have QMainWindow::toolBars()? (like Q3MainWindow::toolBars) Is there a way to iterate over them? (without using metaObject)

Hi Trying out a static build of Qt and am having problems getting the qt gif support to link in even when using Q_IMPORT_PLUGIN(qgif) E.g if I...

How to check object has created with new ? I tried like this, but not work :( Tahede *_tahede; //_tahede=new Tahede(this); if (_tahede) {...

Dear colleague: I am writing to you to explain with details my problems: I am working with Qt Creator 1.0.0 based on QT 4.5.0 and I am...

Hello, I'm facing a rather strange problem. I only recently started working with Qt and OpenGL. :D I'm programming an application in which I...

Hi there! How can I call the native event handler when using the scriptshell binding of the qt script binding generator? I'm using the splendid...

Hi to all, I built a dialog with designer to create an audiotrack list. With the dialog the user can add/remove audio tracks. In the dialog there...

Hi! Om working on a project thats showing a mpeg-file using phonon. I would like to place a transparent QWidget over my video so i can click and...

Hello, With the designer I created a MainWindow with a few DockWidgets. The widget of the DockWidget I promoted to my custom widget. Works nice. ...

Hi, I know that there are a lot of threads related to QScrollArea, but I'm can't find the solution to my problem. I want to show a QWt3DPlot...

Hello, I want to set different color for the menu item. I know there is stylesheet and palette which can be used. But I failed to find the...

Hello, I would like to create a ComboBox for selecting different line styles. I triedto to use a delegate that uses the paint function to draw...

Hi to all, I have a mess in my head(and almost sure iin my code as well), i have around 6 working thread that push information to a controller...

Hi, I have to launch application at startup of OS. I had done in window.But I new to Mac OS.So Please suggest me how to do it. Thanks in...

I have a GUI Application, the main form is widget and display as full screen. The main widget contains some sub-widgets and controls, they was placed...