Mysql and PDF
personal Need a little help need to get data from a select and play in a pdf. The two separated can normally do, ie create a pdf with data “fixed” quiet and will make the connection to the database,...
View ArticleAdvanced Question : Crash after hours of running my multithreaded application
I have this very very annoying and hard to trace crash that happens after 20 hours of running my application. I have this multithreaded application that that controls some mechanical linear stages and...
View ArticleCentral Widget margin property?
I’m learning Qt by following a book (The Book of Qt 4) and it says to change the margin property to 0 in Qt Designer for the central widget. I have the central widget in the object selector selected,...
View ArticleSize of a dialog box
Greetings. Implement a dialog box for an application and it works pretty well. I work with a laptop, and run my program on another computer the dialog box looks considerably larger (but still works...
View Article[SOLVED] Touch doesn't work with QtCreator
Hi, I have an embedded board with a touchscreen. If I start the application directly from the console, the touch works. (simple application, nfs mount) But if I start the application with the QtCreator...
View Articlemingw32-make keep calling qmake and build never ends.
I have tried mingw from both qtcreator and command. Also tried mingw that is bundled with qt and a seperate install but the setup never takes off beyong calling : qmake xxxxxx.pro -r -spec win32-g++...
View ArticleQML alias not working
Anyone any ideas why this code is not working? I have a loader in main which is happily loading files the c++ spits out to it but a slightly different mechanics is required for the username/password...
View ArticleSegmentation fault while using QCA
I’ve been getting the following segmentation fault when compiling: “The inferior stopped because it received a signal from the Operating System. Signal name : SIGSEGV Signal meaning : Segmentation...
View ArticleDelegates and relational table views
Hi :) I am using QSqlRelationalDelegate into a QSqlRelationalTableView, which works fine. However I’d like the combo box to be able to filter as I type, because it holds several thousands of items. I’d...
View ArticleOld Plugin System New Plugin System
I am confused about the plugin system. I a using Qt 5.1 with a msvc compiler, but I am developing in QtQuick 1.1. I cant get any plugins to work. Do I need to use the old plugin system...
View ArticleStarting multiple threads - at once or with a small break in between?
Dear Qt community, I’m writing an application which is using multiple threads to load some data to keep the GUI responsive. Number of threads and work time for each thread is unknown – depends on the...
View ArticlesetWindowOpacity doesn't work
I am using qt 5.1.0 on windows 7 I opened simple GUI application added one button to main window. After you click on it QDialog is opened (or Qlabel, QSplashScreen etc. by ->show() ) . I want...
View ArticleQt5 vc12 64 build with webkit giving unresolved for WebKit::WebProcessMainQt
Evening all, when building Qt 5.1 with webkit on windows using vc 2012 I keep getting the following unresolved. if I skip over building QtWebProcess.exe then it continues and builds fine does anyone...
View ArticleConnect to SQL Database from a custom widget plugin
Hello, I’ve created a custom widget plugin and includet it into QTCreator so I can use it from the Widgetbrowser in QTDesigner to create my gui. Now I want to extend my custom widget to connect to a...
View Articleqmlqtimeexampleplugin not working
has anyone got this pluginexample working? In my case it complains abaout not finding the plugins just like in my own examples and i cant wrap my head around why.
View Articlehow to setup Multiple DESTDIR?
Hi friends, How to have multiple DESTDIR for my project. In my team, other developers also using my code and testing it in the embedded system.So whatever the changes i do in my .so files should...
View ArticleDemo: Integrating OpenSceneGraph with Qt Quick
Screen shot More info osgQtQuick Demo [qt-project.org]
View ArticleProgressbar showing the status of external application
I want to display the progress of my external application in the progressBar…..as I am new to Qt I am not aware how to proceed……kindly help me in this regard….. void...
View ArticleBeste way to implement a treemap?
Hello, I was wondering what the best approach would be to get something like this: http://upload.wikimedia.org/wikipedia/en/8/85/GradientGroupedTreemap.jpg I was thinking about several qGraphicsScenes...
View ArticleRepository pattern implementation example
I’ve been googling around a bit with no avail, attempting to find a Repository Pattern implementation in C++ so that I can use in my first Qt project. I wonder if there are good sources for design...
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