General and Desktop

@QWidget obj = (QWidget)m_formCategories->children().at(0); obj->setFocus();@

That big X is not part of your Qt application. It is up to the window manager to style it.

There is no cross platform possibility to store the version info inside a dll. Even on Linux, I know no one. There, some libs have the version number in the name, but not all, but AFAIK they have no vendor info compiled in. So, use the platform APIS for such things.

Looks like: https://qt.gitorious.org/qt/qt/commit/25c9b6ed

There is a chapter dedicated to this subject in the official Qt book "C++ GUI Programming with Qt 4":http://www.qtrac.eu/C++-GUI-Programming-with-Qt-4-1st-ed.zip

No, I don't think there is a way. This is not something Qt offers as a simple flag.

No, QListWidget doesn't use linked list, it uses model-view architecture. If you don't specify model it creates QListModel implicitly.

how can i access parent child items loop by loop.. can some one please tell me

Mostly because you splitted between the template definition and declaration. C++ doesn't allow this, template function must be placed in header file. "C++ FAQ had it":http://www.parashift.com/c++-faq-lite/templates.html#faq-35.12

Got it. Thank you. I used isminimized, and if yes then shownormal() ;

Fixed! @ QString name = curveParms->curveColor().name(); QStringList colorNames = QColor::colorNames(); for (int i = 0; i < colorNames.count(); ++i) { QString cn = colorNames[i]; QColor color(cn); if(color.name().compare(name) == 0) { name = cn; } } v = QVariant(name); @

Thanks for your coincidence I agree with @andre i need to use thread because gui is locked when querying data or submitting data to remote server...can any one tell how work well thread with sql please .........

Have a look at "this thread":http://developer.qt.nokia.com/forums/viewthread/5062/P15.

Is there any tutorial for a drop-shadow with OpenGL and shaders? (I've never done some opengl stuff :D)

A very open question :) Do you have some more detail to share?

First, please re-edit your post an indent your code, it's quite unreadable this way. For your actual problem: You set the items in your loops and in the end you destroy all the work you've done by setting a new (and empty!) model on your table widget. The way to go is: Either use [[Doc:QTableWidget]] together with [[Doc:QTableWidgetItem]]s Or use [[Doc:QTableView]] together with a [[Doc:QStandardItemModel]] You should not mix a QTableWidget with any item model, being it standard or custom.

Maybe just calling the first select creating the temp table can be moved to a simple [[Doc:QSqlQuery]] call. This way you would save yourself a reset on your model.

QVariant != VARIANT!!! the thing you have to do it this way in MFC is that VARIANT is a structure so it has no constructor. In MFC you could use CVariant which does this implicitly. I'm not 100% sure what to do in ActiveQ there

Uhm...there could be a little difference, but should not be such the one you reported. You have to understand that given a completed query allows the optimizer to choose in advance the right/best plan, giving a prepared statement makes the optimizer to guess and to rebuild the plan once the values are known. You can test the same prepared query from the console too, and see if the problem persist. Anyway, take into account that testing the same query over and over again is a bad idea: the database will cache data and the execution of the same query will result faster. Finally, you can enable verbose logging to see which plan the database choose and compare it against the complete query.

[quote author="andyc" date="1319583136"]Hello, how i can i allign my pushbutton in the centre of the mainwindow ? ive been googling for a while, and didnt find any answer... also, i would like to have my button in the centre of the window even if the window is resized... Best regards, OSiRiS[/quote] Do you mean like using a layout? Otherwise, can you elaborate?