Qt Creator and other tools

You are welcome. Glad to see that my comment helped ;-) qmake is quite powerful, but the documentation and tutorials could benefit from a tune-up.

Uhm, the problem was other version of openssl on my pc and another. Thanks all for answers :)

libexif are not really in development, so I would see, if a update comes. Also, I would get a typical compiling error. I take a look in the QtCreator build environment and I noticed, that it is using another library path. LIBS += -llibexif -Lpath/to/libfolder doesn't work, because it takes first the library in the system folder instead of my version. Thanks all for their help!

You need to create QCH documentation (Qt Compiled Help) files, and then add them in Qt Creator's Preferences. To create qch, you can use either the built-in qdoc, or external: Doxygen. Doxygen is recommended for all code that is not Qt itself.

This is best asked on Qt Creator "mailing list":http://lists.qt-project.org/mailman/listinfo.

Qt can't guess your external dependencies ;) You're welcome ! Since it's all working now, please update the thread title prepending [solved] so other forum users may know a solution has been found :)

You should share the link so if other are looking for something similar they may find it more easily

Hey everybody, after a few days working at it, i have found one solution for my problem. I will list some things quickly! -first you have to add an QwtPlotPicker to your QwtPlot @QwtPlotPicker *picker = new QwtPlotPicker(ui->qwtPlot->xBottom, ui->qwtPlot->yLeft, QwtPicker::NoRubberBand, QwtPicker::AlwaysOn, ui->qwtPlot->canvas());@ -than u declare a QwtPickerMachine(ClickPoint or Drag Point) @QwtPickerMachine* pickerMachine = new QwtPickerDragPointMachine();@ -set the PickerMachine to your Picker @picker->setStateMachine(pickerMachine);@ -connect picker Signal with a Slot @connect(picker,SIGNAL(moved(QPoint)),this,SLOT(function(QPoint)));@ -your slot function should look like this @void function(QPoint actualMousePosition){ int x = myCurve->closestPoint(actualMousePosition, NULL); QPointF Position = myCurve->sample(x); Marker->setValue(Position); ui->qwtPlot->replot();@ Be sure u declared a QwtPlotMarker before using the function. The Function closestPoint() is very importend. I hope i could give u an idea how to use this things, if u have questions write me a private message!

To move them manually they first have to be unlocked. This is also in Window > Views. Or right-click in the area around the form. The item 'Locked' is a toggle of course. When this is done they show their titles which can be used to drag them. And atige has explained how to restore them to the default.

Hi, I agree with SGaist. If you use Qt Creator, you won't need to worry about environment variables at all. Just create a project using File -> New File or Project... -> Applications -> Qt Widgets Application. You will also find a more up-to-date tutorial at http://qt-project.org/doc/qt-5/gettingstartedqt.html

You're welcome ! Now that you have your old Qt working, please update the thread title prepending [solved] so other forum users may know a solution has been found :)

Hi, A better place to ask this question would be the interest mailing list. You'll find there Qt's developers/maintainers (this forum is more user oriented). Don't forget to subscribe first

Hi and welcome to devnet, Is it just an informative post or is the question missing ? :)

hii i guess online installer is very slow. i shall choose offline installer instead.

Thanks for the suggestion.. I think I'll do that!

Okay, got it! Thanks for the advice :-)

I might be wrong with this, I wouldn't consider myself an SQL expert, but this seems to works for me using SQLite within Qt. In my SQL I use the single quote ' rather than the double quote " and it doesn't need escaping, so I avoid the problem. I would also have thought that table and field names only need quotation marks if they have spaces in them. I use underscores in field names to avoid that and only use the single quote when I am including strings for things like date formats within the strftime function. I guess things could be different with different SQL libraries within Qt?