Whenever I use the signal/slot editor dialog box, I have to choose from the existing list of slots. So the question is how do I create a custom named slot?

Whenever I use the signal/slot editor dialog box, I have to choose from the existing list of slots. So the question is how do I create a custom named slot?

I'm developing a simple Qt 4 app and making my own dialog. I subclassed QDialog, inserted the Q_OBJECT macro in the class declaration block, and... I get [Linker error] undefined reference to `vtable for MyDialog' and there is no moc_MyDialog.cpp g...

I'm developing a simple Qt 4 app and making my own dialog. I subclassed QDialog, inserted the Q_OBJECT macro in the class declaration block, and... I get [Linker error] undefined reference to `vtable for MyDialog' and there is no moc_MyDialog.cpp g...

I am looking for a simple C++ library for tokenizing and parsing RTF (Rich Text Format) files. I am planning to edit them with Qt's QTextEdit. More the Formatting preserved the better -- but actually I am planning to use Bold and Italics only. In perl I...

I have a stub Qt application and I keep getting compiler errors #include <QApplication> int main(int argc, char *argv[]) { return 0; } I used qmake -project and qmake commands and as far as I can tell they did their job correctly. When I ...

How do I set the initial width of a QDockWidget? I have implemented the sizeHint function but what next?

In my C++ application (developed with Visual Studio 2003) and Qt4, I'd like to print the stack trace from a specific line of code, either to the console output or into a file. What would it take ? Is Qt of any help to do this ?

I've a dialog which contains a Qt TabWidget with a number of tabs added. I'd like to hide one of the tabs. _mytab->hide() doesn't work. I don't want to just delete the tab and all its widgets from the .ui file because other code relies on the ...

I'm looking for the equivalent in Qt to GetTickCount() Something that will allow me to measure the time it takes for a segment of code to run as in: uint start = GetTickCount(); // do something.. uint timeItTook = GetTickCount() - start; any suggestio...

I'm looking for the equivalent in Qt to GetTickCount() Something that will allow me to measure the time it takes for a segment of code to run as in: uint start = GetTickCount(); // do something.. uint timeItTook = GetTickCount() - start; any suggestio...

Trying to honor a feature request from our customers, I'd like that my application, when Internet is available, check on our website if a new version is available. The problem is that I have no idea about what have to be done on the server side. I can i...

I am building a physics simulation engine and editor in Windows. I want to build the editor part using Qt and I want to run the engine using SDL with OpenGL. My first idea was to build the editor using only Qt and share as much code with the engine (the ...

I am building a physics simulation engine and editor in Windows. I want to build the editor part using Qt and I want to run the engine using SDL with OpenGL. My first idea was to build the editor using only Qt and share as much code with the engine (the ...

Pros. and cons? how long do you use it? What about jambi?

Pros. and cons? how long do you use it? What about jambi?

At the moment, our application uses the Trident Win32 component, but we want to move away from that for a few reasons, chief among them being our desire to go cross-platform. We're looking at WebKit and Gecko, but I'd love to get some feedback before I m...

At the moment, our application uses the Trident Win32 component, but we want to move away from that for a few reasons, chief among them being our desire to go cross-platform. We're looking at WebKit and Gecko, but I'd love to get some feedback before I m...

According to the documentation the return value from a slot doesn't mean anything. Yet in the generated moc code I see that if a slot returns a value this value is used for something. Any idea what does it do? Here's an example of what I'm talking abou...

I know that this is a very specific C++ and Qt related question, but maybe someone can help me, anyway ... See the code below: I want to display an image within a scroll area. The view port of the scroll area shall have a defined initial size. That means...