General and Desktop

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You are always using Makefile, which contains a debug and release target and invokes Makefile.Debug and Makefile.Release respectively. Depending on the selected mkspec (either using the -spec parameter or QMAKESPEC environment variable) the configuration (from $QTDIR/mkspecs/<mkspec>/qmake.conf) is read, and the QMAKE_ variables are set.

"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 ?