How to compile Qt with Microsoft Visual Studio
I created a Qt programme, I can compile it without problem manuelly with Visual Studio (using Add-In) but when I try to compile it with coding I have a problem. The problem is C:\Program...
View ArticleCmake error: QGLWidget: No such file or directory
I am using Qt5 and I am trying to implement a QGLWidget. When I run make after I have configured cmake I get the following error: QGLWidget: No such file or directory My CMakeList.txt file includes the...
View ArticleUsing Qt Designer plugin in applications
Hi I have developed a number of Qt Designer plugins and can use them in my applications. But obviously I need my apps to link against the plugin library which means when I deploy the application I need...
View ArticleQt Pluggin in new tab
Hello, My main application contains a subclassed QTabWidget with 3 tabs. I would like to be able to load a pluggin at runtime which will add a 4th tab if the pluggin exists. I have no idea where to...
View ArticleRounded image using shaders
Hi all, I’m trying a piece of code got from another thread [qt-project.org] testing it on nokia n9 (but I think problem could be another one); at runtime I get this compilation error: ...
View ArticleThread Finalizing
Hello my dear friends I have a simple scenario I want to start a thread using QThread class and finalize it when ever I want class PlayerManager : public QThread …. PlayerManager::PlayerManager(QObject...
View ArticleQWidget expanding in QGraphicsScene/View
Hello, Here is my issue. I have a CustomWidget class which inherits from QWidget and has a UI file. This widget’s main layout has its policy to x expanding, y expanding. I want this widget to fit in a...
View ArticleData base is not getting updated in different session
Dear All, I am just the novice in this field…i am writing an application where i want to store the data in to the database. my doubts are as under: 1. Data is stored in DB for a very first session...
View ArticleProblems with image colortable from latin1 file
Hello, I wrote some Raw-Image-Reader and most of it works. But I still cant figure out how to set the colortable correctly. So first of all here is my code example: QFile file(”:/new/1.raw”); //open...
View ArticleQt Creator: Controlling output pane auto-open
Is there any way I can control if and when an output pane automatically opens in Qt Creator? Or more specifically, I’m looking for a way to tell the “Version Control” one not to open just because the...
View ArticleChange existing string through Buttonsinput (qml/javascript function)
Hello! I am making a frontend in QML. I have one Input field with initial value of “0000.00”. And I have Buttons from 0 to 9. Now I want to be able to make an input from 0 to 9 so that the respective...
View ArticleQGraphicsView/QGraphicsScene Multiple (redundant?) resizeEvent and...
I’m getting to many calls to drawBackground during window resize and I’m trying to understand what is causing this behavior. I’ve created a really short sample program that will reproduce this...
View ArticleQtCreator : Plugin to replace ProgressManager implementation
Hi there, I’m currently trying to write a plugin that would allow the build progress and the number of issues to be displayed in Unity launcher icon based on this proposal :...
View ArticleQt FireBird
sorry to trouble you again, I’ve seen several forums about FireBird but none gave me a solution that worked even … tested with Qt 4.8 it is perhaps not attempted use eg IBPP had problems with memset...
View ArticleQTreeview sometimes shrinks first column on Solaris only (using 4.8.4)
I have a QTreeView with four columns. Sometimes, on the Solaris build, the first column shrinks to the width of the little tree-navigation buttons (those little buttons next to a row that expand the...
View ArticleQt 5 Firebird
Lamento molestarte de nuevo, He visto varios foros sobre FireBird pero ninguno me dio una solución que funcionó incluso … probado con Qt 4.8 tal vez no sea intento de uso por ejemplo IBPP tuvo...
View ArticleQt 5 com Firebird
desculpe o incomodo mais uma vez, eu já vi vários foruns sobre o FireBird mas nenhum me deu uma solução que funcionasse mesmo… não testei com Qt 4.8 talvez seja isso tentado utilizar o IBPP por exemplo...
View Articleftp server connection..
I am using Qt-5.1.1 but not able to find any QFtp module. But I can see the example for qftp online. I want to implement a qftp appllication where I need to connect to the ftp server and fetch files to...
View ArticleQt on Android: Possibilities to grab frames from a video stream
I’m working on a kind of AR application, in which I add additional information to a video stream. The additional information is realized as OpenGL overlay on top of the video stream. As the video...
View Articleshows gray background of application after the resize application window
Hi , i am creating the hoops widget from Qwidget. i am transferring the my application from 3.0 to 4.8 qt. i have seen that the same code is not working in 4.8 . whenever i resize my application window...
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