General and Desktop

Methods declared under slots section can be used like ordinary methods. In fact, from C++'s point of view they are not distinguishable from non-slot methods. It's just needed for the moc run, to have it generate the necessary glue code for signal/slot connections. So this does not cure the errors. Maybe you can make a simple test project, just the necessary code to reproduce the error, a method with just a dummy implementation. Without some code snippets, it's hard to tell what's going wrong here.

offtopic I'm not sure it's useful to ask an user more details about his problem... 9 months after his original message.

[quote author="dxwang" date="1312182018"]I am sorry, I still don’t find that which function can set line spacing in QFont. can someone help me .[/quote] Did you find the answer. I am searching something similar ?

I appreciate your posting, it is just that I wanted to point out what needs to be done to get this into our codebase. I don't want people telling me "there is a patch on devnet for ages, so why is that not in Qt Creator x.y.z" :-)

It is, and I've updated the title accordingly.

"QLabel":http://developer.qt.nokia.com/doc/qt-4.8/qlabel.html [quote]QLabel is used for displaying text or an image. No user interaction functionality is provided. The visual appearance of the label can be configured in various ways, and it can be used for specifying a focus mnemonic key for another widget.[/quote]

First You have to do installEventFilter On the widget to get the events ftom widget.

I found a solution. I was able to point to the correct libraries in the make file before building the .bundle.

[quote author="Lukas Geyer" date="1326190237"]It looks like QSettings doesn't reset the status (which might be a good thing or a bad thing, depends), but there should be a way to reset it on demand (your use case is a perfect one). Do you mind filing a bug report / feature request?[/quote] https://bugreports.qt.nokia.com/browse/QTBUG-23857 -Karthik

QString::fromUtf8 did the trick. much thanks.

Oo...you just need read some book about OOP. @ #include "B.h" class A : public QWidget { private: //First impl if you want to know about b all time; B *b; //or B b; -- if you don't want to dynamically create instance of B; QStackedLayout *stack; //your stack public: A() : b(new B()), stack(new QStackedLayout(this)) {} void foo() { stack->addWidget(b); //or second impl if you don't want to know about b all time stack->addWidget(new B()); } }; @

Thank you for the feedback. I updated my answer. Now that you solved the problem you can add [Solved] in the beggining of the title of the question.

Hi. It's because QScrollArea didn't have layout by default. You must set it by yourself. Like this: @QScrollArea *sarea = new QScrollArea(); QVBoxLayout *layout = new QVBoxLayout; layout->addWidget(new QPushButton("Hi")); sarea->setLayout(layout);@ So, program is crashed because you trying to use uncreated pointer.

[quote author="favoritas37" date="1327332502"]Sorry Volker, i mentioned it because i haven't noticed that the base class already inherits from QObject. I wouldn't suggest to inherit twice from QObject. [/quote] No problem, everyone overlooks something now and then :) I just wanted to make sure that another potential trouble maker does sneak in :)

Thanks for the answer basil, I almost forgot you could open the SVG file with a text editor and look at the XML code! I'm working on the application right now and reading through the Qt graphics framework docs, I'll try extracting and using the path coordinate numbers as soon as I'm ready. I noticed the SVG-related classes (like QGraphicsSvgItem) have some interesting functions like setting/getting the element's XML ID which could be helpful! I think i should have done a little more research before making a new thread :) Will report back here if it works or not, thanks again.

And yes now need to link to the latest qmake.exe

[quote author="koahnig" date="1327309310"]Did you check out "lineWidth":http://developer.qt.nokia.com/doc/qt-4.8/qframe.html#lineWidth-prop ?[/quote] but How can it will work with Qtextedit? I think line spacing is different from line width.