General and Desktop

hiding the main window probably isn't quite what i wanted to do. i want to be able to start the app with a home screen, then click a button and go to another screen. the second(and subsequent) screens will have their own controls, event handlers, etc. i then want to be able to switch to other screens, as well as return to the 'home' screen. i'll take a look at QStackedWidget, that sounds like it might be closer to what i wish to do. thanks for input, i'll report back what i discover here.

I had the same trouble. Sometimes the debug mode misses some exception messages. Choose Build-> Clear All Run QMake Build all If this fails, check out step by step, each line in debug mode, you will surely find it.

In overriding QMainWindow::event() I should have not simply returned false in case of not handling the event myself, I should have had @return QMainWindow::event(e);@ That solved it.

The simplest example would be to save the entire "GPL-3.0":http://www.opensource.org/licenses/GPL-3.0 into resource file. When button is clicked, read the file, and put the "plain text":http://doc.qt.nokia.com/stable/qtextedit.html#plainText-prop into QTextEdit

ya i want to resize with mouse insides widgets of mainwindow

Ok thanks I try this a little later.

Now i got thanks

Maybe you should also use "application icon":http://doc.qt.nokia.com/latest/appicon.html

You could use "strechLastSection":http://doc.qt.nokia.com/4.7/qheaderview.html#stretchLastSection-prop which stretch only the last one and use a resizeToContents after filling in the data. Then the user could change the width but the last column always fits.

The point is, if it is declared under slots, it IS parsed by moc, which results in the error. MOC does some validation and the produces a build error.

[quote author="waqas" date="1321963889"]Hi. I got a quick question. I am developing a new programming language along with it's own compiler and IDE. I want to use nokia's Qt in order to build my own IDE. I want to license my product. My question is: Is it possible to use open source Qt to develop my own IDE so I can sell it for commercial purposes? Thank you. Waqas [/quote] Yes and no, you can use the LGPL license. You may not use stuff that is licensed under GPL. There are some restrictions, which are mentioned in the docs about stuff that has another then the standard Qt license.

Hi Gerolf My application is in one language(just utf-8 unicode). thanks,your right; And hi Volker. @msgBox.setText(QString::fromUtf8("your text"));@ this is so useful code for me. thanks a lot best regards

As Andre sayed you should read the documentation. You can use this one "items()":http://doc.qt.nokia.com/latest/qgraphicsscene.html#items-3

The problem is that you have probably an image in true color without color palette. To get the color, in such a case: @ QImage im(//the path); QVector c[im.width()][im.height]; for (int i = 0; i<im.width(); i++) for (int j=0; j<im.height(); j++) c[i][j] = qRed(im.pixel()); ... @

There is no implicit application version, just one explicitly set using QCoreApplication::setApplicationVersion(), which takes any version information you provide. You might set "VERSION":http://doc.qt.nokia.com/4.7/qmake-variable-reference.html#version in your .pro file, but this information does not automatically populate applicationVersion. If we are talking about embedding version information into Windows application see "this":http://developer.qt.nokia.com/forums/viewthread/9922 thread.

Thank you for your big help. In effect I solved the task on an other way. I just delegate an own Signal from Page1 through the Wizard to an own Slot of Page2. @connect(this->page(page1), SIGNAL(changed(QList<QString>)), this->page(page2), SLOT(magic(QList<QString>)));@ But your solution helped me a lot. Thank you verry much.

I don't need them...so just supress that warning as Microsoft says on MSDN ?... I hope, it'll work... Well, MSDN says: You could also compile with /Z7, so the pdb doesn't need to be used, or remove the /DEBUG linker option if you do not have .pdb files for the objects you are linking. @http://msdn.microsoft.com/en-us/library/b7whw3f3(VS.80).aspx@ It means that I have to add /Z7 option or remove /DEBUG parameter... But 4.7.3 don't do that...

Good to hear they are still available on line.