General and Desktop

"I use mingw32-make, because it is situated in Qt’s SDK" I experienced several problems by trying to use mingw32-make of the Qt SDK too. So i recommend you to download the Qt libraries and install MinGW seperately as i mentioned above.

Thanks Lukas Geyer.

Hi 1+1=2 I am using Qt 4.8 and Visual Studio 2010. Ideally I am sticking to QStrings which is why I am questioning/double checking the idea of having to pass chars to Qt functions - all this encoding stuff is giving me a headache :-S

Can you please see my issue? Is this site the only place to take Qt? Many Thanks & Best Regards, HuaMin

Keep in mind, that good knowledge of C++ is necessary to work efficiently with Qt. For example, what's the point of reading about smart pointers classes if one doesn't know what the pointer is nor how it works? Personally I prefer reading books, articles to watching videos about programming languages or frameworks. I find it easier to mark interesting points and make bookmarks.

This is my solution: @QMdiSubWindow *subWin = mdiArea->addSubWindow(dialogo); connect( dialogo->getBtnCancel(),SIGNAL(clicked()),subWin,SLOT(close())); subWin->setAttribute(Qt::WA_DeleteOnClose); subWin->show();@

I find my console will print out Warning: QClipboard::setData: Cannot set X11 selection owner for CLIPBOARD

Never mind, it doesn't seem to work all the time.

I forgot. To open a project you created with Qt Creator, on VS go to menu, Qt, Open Qt project (.pro) and select the .pro file. One thing I don't know how to change is that the Debug configuration has the code optimizations set for speed and that's why you won't be able to debug properly. So the first thing you have to do is disable the code optimization for all the debug configurations. IntelliSense is probably gona complain about the Qt libraries it does not know. I have a few posts with the issues I found "http://blog.lfdm.net/index.php/Qt-c/":http://blog.lfdm.net/index.php/Qt-c/

I figured out the problem, finally. I had not reimplemented QSortFilterProxyModel::data() even though I had reimplemented data() on QAbstractTableModel. After doing that, it is now working much more predictably. So, I'm on to other problems. :)

Thank you. It works fine.

Mosaic also "has some plotting components":http://www.mosaicsoftware.net/products/qt/ you might be interested in.

You're (still) welcome ;-)

one more bump, really want it to work :-) soo any clues why it misbehaves?

There is no QT way to do this. Use system API functions for that. For windows API look at "this":http://msdn.microsoft.com/en-us/library/aa910392 reference

it's solved wenks21 ?

Please do not post the same issue in several threads. I took the liberty of merging them. Considering that this is a really standard situation I put the merged thread under "General and Desktop", since you definitely do not need a C++ guru for this;-) I would use unicode categories (see QChar::category()) to decide which characters to allow.

BTW, how do you make sure the data is incorrect: inspect a variable via debugger or outputting a value into some widget?

Well, that is what I thought but my code did not work until I put it in a QObject (a frustrated experiment) but I have just moved it back out of the QObject (deleted the TS) and it works. Must have been something funky about the update of the TS). Either way, it works, yay!