C++ Qt 02 - hello world
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Uploader Comments (VoidRealms)
All Comments (20)
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very good!!
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hello guys with qt version 2.4.0
after this tutorial i've also got 2 errors
how to fix them : close the console window, rebuild everything
should work
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I could have sworn you said 'now we're just going to bitch shift out'. That is my new motto.
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All the code in this tutorial gives me errors, and I'm not sure why.. any ideas?
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hmm cout << "hello world"; works but qDebug() << "hello world!"; gives me errors. error: invalid use of incomplete type 'struct QDebug' error: forward declaration of 'struct QDebug' warning: inline function 'QDebug qDebug()' used but never defined
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Nice tutorial!
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thanks a lot, it really helps me, kepp going!
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Thanks a lot!
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Brain you are awesome! Great tutorial!!!
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Could you put the corrections in annotations so I don't have to keep track of the comment?
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Errata (from offical Qt forums):
04:42 Same thing; you get the QString #include “for free” because of other includes, but you’re not including it explicitely (nor including every header from core), which is bad practice
VoidRealms 1 year ago
Errata (from offical Qt forums):
04:15 QT += core doesn’t “add” anything to a specific file; you still must #include anything you use, or the compiler will complain (and Creator won’t autocomplete, etc.). The list that pops up is of classes, objects, macros, functions etc. you got by #including QCoreApplication and QDebug, and it does NOT contain EVERYTHING available in the core module (an #include QtCore would do that). For instance, QAbstractItemModel is missing from that list.
VoidRealms 1 year ago
Errata (from offical Qt forums):
01:00 add a note about why the two inclusion header are different?
01:43 you’re not creating a QString, but using the QDebug::operator<<(const char *)
02:06 QtCore is not a framework but a module/library
03:20 same thing
03:43 TARGET isn’t the name of the project but the name of the executable to build
VoidRealms 1 year ago