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How to link .o object library in QT Creator?

Hi all, I have a problem in linking the .o object library in my QT project. So this is what I wrote in the .pro file LIBS += $$_PRO_FILE_PWD_/libs/triangle.o INCLUDEPATH += $$_PRO_FILE_PWD_/libs...

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scrollArea is not working on Mac

Hello. Using QtCreator, I put a scrollArea inside a centralWidget, and then I put a stackedWidget inside the scrollArea, so that whenever a window is reduced the scroll bars appear. It works fine in...

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QMainWindow::showFullScreen() problem on Mac OS X 10.8

Hello again. I have new problem with Qt on Mac OS. I need fullscreen window in my app, and QMainWindow::showFullScreen() works fine on osx 10.7+, but when I trying to close it, gray fullscreen frame...

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Qt Creator 3 doesn't autocomplete.

This happen when I select target project for iOS but when the target is for Desktop Qt Creator yes autocomplete. I speak about the same project. Thanks

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popup a qmessagebox from a qmessagebox

I set a button in the MainWindow when I click it, a messagebox will popup, which contains two buttons: yes and no then when I click yes, another messagebox will popup. BUT when the second messagebox...

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Compile Oracle 64 bit plugin on Windows 64 bit with Qt4.3

Hello everyone,Compile Oracle 64 bit plugin on Windows 64 bit with Qt4.3 I’ve an application which must connect to an Oracle database. It works well on Windows x32 bit. But recently, I’ve encoutred a...

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Detached pthreads and memory leak

Can somebody please explain to me why this simple code leaks memory? I believe that since pthreads are created with detached state their resources should be released inmediatly after it’s termination,...

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[iOS][Android] IP Camera rtsp protocol

Hi, I need to implement showing image from rtsp camera in my application which runs on both Android and iOS. I tried using phonon4qt5 but can’t compile in there. Missing libraries. I also tried using...

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not detecting QGraphicsItem::mouseReleaseEvent [SOLVED]

void Circle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {       qDebug()<<"released";       update();...

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QAudioRecorder and output file name.

Hi, I’m confused by QAudioRecorder class. I’m trying to record audio, but when I’m saving file, extension are automatically generated (in my case .WAV). isn’t there any way to avoid this? // setup...

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connect to slot and specifying argument values

I have a QLineEdit object and I have connected the returnPressed() signal to a slot. The same slot though is called for another signal, and I’d like to differentiate between the slot caller using a...

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Customising Installers

I have managed to successfully create an ‘AdminProgram’ which is used to build the installer for my main project. It creates the required config/packages file system correctly, updates all .xml files...

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Qml Canvas in SplitView: on resizing the canvas the context disappear

Dear friends, i hope somebody can help me. I use a canvas in a splitview. the canvas item has minWidth , so that i can shrink it to minimum width. But here came an error. Than i resize (use the...

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avoid signal editingFinished() to be sent twice on hide()

I have a QLineEdit widget and when it looses focus or editing is finished by pressing the enter key it should disappear. So I connected a slot to it where I call the hide() method. With a few qDebug...

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Newbie signal set up confusion

Ok, I am really lost at the idea of declaring a signal but not implementing it, i.e. letting MOC do it. ‘ I have a mainwindow class with 2 objects – 1 is a plot window, 2 is a data analyzer. The data...

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QObject::Connect no such signal error but cannot see anything wrong :(

Hi My mainwindow class has 2 main objects, a dataDisp and a data Plotter. As a first step all I am trying to do is connect the peak detection in the dataDisp to the mainwindow with signals and slots...

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facebook login on android

Hei there :D Can anyone tell me how to implement a facebook login on android? Cause since there is no QtWebkit available for android I don’t see a solution for this.

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No BIN folder and no .apk and can't deploy.

I use Qt for Android and setup with android sdk & ndk + ant and jdk. I use default template app so it’s not the app fault. Looks like it compile ok, but can’t deploy. Compile output:...

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QGL vs QOpenGL

Hi everyone! I recently switched to Qt for developing OpenGL applications. Can someone tell me what the difference between QGL and QOpenGL is? Regarding the API QOpenGL seems to be more the OpenGL I am...

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Configure MinGW to QtCreator

Hi! I am trying to configure MinGW kit to QtCreator 2.8.1(Qt 5.1.1 based on MSVC). I want to change my compiler to GCC. I have installed MinGW and added it to KIt and compiler. But still it shows...

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