C++ Qt 02 - hello world

[FrenchTutoCommunity]

very good!!

[denit28s]

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

[ArtyomLastLight]

I could have sworn you said 'now we're just going to bitch shift out'. That is my new motto.

[InterFiction100]

All the code in this tutorial gives me errors, and I'm not sure why.. any ideas?

[InterFiction100]

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

[MrAlexanderHoff]

Nice tutorial!

[GrigoriuNicolae]

thanks a lot, it really helps me, kepp going!

[Ericayoh]

Thanks a lot!

[YouEziz]

Brain you are awesome! Great tutorial!!!

[andrewyaoauatauabaea]

Could you put the corrections in annotations so I don't have to keep track of the comment?

[pedropgusmao]

Now if you use: qDebug() << "hello world";

You get :

hello world

but if you create the QString object, you get:

"hello world""

That is, the same but with quotation marks, why so?

[SharingEqualsCaring]

Is qDebug() synonymous with cout? 

[7337cod3r]

Your videos are hard to find ! I wasted much of ma time then found out your tuts.It would be a lot better if your channel had been famous like thenewboston, anyways Subscribed....

[manpikingillz]

am downloading....am expectant. i will keep in touch with you. its seems there is realy great stuff

[hammadghulam]

Helooooooooooooooooo HK!!!!!!!

[VoidRealms]

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]

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]

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

[ziagaggoo]

i like your tutorial ,So plz upload a game tutorial for Symbian 3 OS .how i create a game in qt for symbian mobile phone...