Problem displaying my main window

[jpn]

This is the .pro file

CONFIG += qt
      HEADERS += ui_Maker.h
      SOURCES += main.cpp

CONFIG += qt
      HEADERS += ui_Maker.h
      SOURCES += main.cpp

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Please follow the directions I already gave you once. There is no need to generate the header and include it to the project by hand. You should be using a variable FORMS instead.

Edit: Clean up the folder. Leave only files main.cpp and Maker.ui. Run "qmake -project" and you'll get a proper project file.

And this is what appear in console. There are really many errors such as:
in main.cpp - undefined reference to...
and the first error is [release\test.exe] error 1
and second is
[release] error 2

Well, you managed to cut the interesting part off. "error 1" or "error 2" does not tell anything valuable. Please paste all the errors including the undefined reference.

[wysota]

Maybe he should paste only the first few?

And remember about closing the memory leak when you come to this point

[jpn]

Maybe he should paste only the first few?

That's what I asked in the first place but it didn't work so I tried another approach..

And remember about closing the memory leak when you come to this point

First of all, I tried to advise against using the direct approach. Anyway, the same leak is also in the example..

[Salazaar]

Please follow the directions I already gave you once. There is no need to generate the header and include it to the project by hand. You should be using a variable FORMS instead.

But if I want to make changes in the maker file, which I can't do in Designer such as connecting tools->sort to another dialog, I have to generate header file and make changes and add it to project by hand. Is that right?
EDIT:
I have generated project file by makefile but there appear the same errors such as:
in main.cpp - undefined reference to _imp__ZN7QString4freeEPNS
What is wrong?
EDIT:
I think this is problem with my Qt installation, because when I try to compile simple application lioke this:

#include <QApplication>
#include <QPushButton>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    QPushButton hello("Hello world!");
    hello.resize(100, 30);
 
    hello.show();
    return app.exec();
}

#include <QApplication>
#include <QPushButton>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QPushButton hello("Hello world!");
    hello.resize(100, 30);

    hello.show();
    return app.exec();
}

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There appear errors such as undefined reference to QApplication, QPushButton and the same as in compiling converted ui file
So, I'll ask once again. What's wrong? I have installed Qt to my mingw compiler, set 3 environment variables. I have done it with Marcel's help, so everything should be set.....
Regards
EDIT:
Oh, now everything's ok, I just forgot to include QApplication to main file

[jpn]

But if I want to make changes in the maker file, which I can't do in Designer such as connecting tools->sort to another dialog, I have to generate header file and make changes and add it to project by hand. Is that right?

As the generated header says in the header comment, do never edit them by hand. Your changes will be lost if you ever want do adjust the designed form and the header is generated again. Use either single inheritance or multiple inheritance approach and do the changes in the actual widget/dialog/window class (which loads the designed form).

[Salazaar]

I really don't understand what is described in this link.

[wysota]

Please use the "code" tag (# button) instead of "qtclass" (Qt button) when pasting code.

[Salazaar]

So how can I connect other dialogs to my main windows action (it is all done with Qt Designer)

[jpn]

Hopefully this helps:
FAQ: I have two forms. How to open a second form after a button is clicked in the first one?

[Salazaar]

Ok, thanks, I'll try it. But if I want to make things, which I can't do in Designer, so how can I make these changes without changing code?

[wysota]

Look again at the links JP gave you in post #12.

[Salazaar]

Hi. I tried to do what's described in http://www.qtcentre.org/forum/faq.ph...esigner_2forms
but I don't know how to do it. I'd be veery thankful if somebody will do it on my code and add comments in the parts of code which were changed:

Dialog file which I want to connect to actionAbout http://www.insidetennis.yoyo.pl/ui_About.txt

And my main window
http://www.insidetennis.yoyo.pl/ui_MainWindow.txt (Attention! The file is called ui_maker.h, not ui_mainwindow.h !!!)

if someone can do it, I'd be very thankful...

[jpn]

Please, consider going through the nice tutorials shipped with Qt, starting from Qt Tutorial 1 - Hello World. We are not here to teach you the basics but to help you with problems you may encounter.

[Salazaar]

I have C++ GUI Programming with Qt 4 book. And I know something already, but I can't do anything about that, so I will ask you once more, to correct my code

[Salazaar]

I added this:

void Ui_MainWindow::openUi_Dialog(){
  static Ui_Dialog *Ui_Dialog = new Ui_Dialog(this);
  Ui_Dialog->show();
  Ui_Dialog->activateWindow(); // or form2->setActiveWindow() in Qt3
  Ui_Dialog->raise();
}

void Ui_MainWindow::openUi_Dialog(){
  static Ui_Dialog *Ui_Dialog = new Ui_Dialog(this);
  Ui_Dialog->show();
  Ui_Dialog->activateWindow(); // or form2->setActiveWindow() in Qt3
  Ui_Dialog->raise();
}

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into Ui_MainWindow class. Is that correctly?
EDIT:
No, it isn't. When I do it I have errors that MainWindow class does not have a member called raise, acitvateWindow and show. Even if I paste it out of this class there are errors:
class Ui-Dialog has no member called raise, show and activateWindow. So how should I do it?

[wysota]

Again with big red characters:

Don't change the code of the class generated by UIC. Subclass along the proper widget class and put additional code there.

There... I hope that makes it clear Oh... and I'm sure it's well explained in the book you mentioned.

[Salazaar]

Right. Than, I have a question concerning code that jpn gave me:

#include "ui_Maker.h"
 
 
 
      int main(int argc, char *argv[])
 
       {
 
           QApplication app(argc, argv);
 
           QMainWindow *window = new QMainWindow; // create a main window, that's what you have designed
 
           Ui::MainWindow ui;
 
           ui.setupUi(window);
 
           window->show();
 
           return app.exec();
 
      }

#include "ui_Maker.h"
   
       
  
      int main(int argc, char *argv[])
  
       {
   
           QApplication app(argc, argv);
   
           QMainWindow *window = new QMainWindow; // create a main window, that's what you have designed
  
           Ui::MainWindow ui;
  
           ui.setupUi(window);
  
           window->show();
 
           return app.exec();

      }

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Why it's

Ui::MainWindow ui

Ui::MainWindow ui

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? I didn't find anything what should be called by this.

[jpn]

Why it's

Ui::MainWindow ui

Ui::MainWindow ui

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? I didn't find anything what should be called by this.

The name was picked from Marker.ui pasted in the very first post of yours. However, it was only an attempt to get you going. You really should forget about the direct approach and use better alternates.

[Salazaar]

Like The Single Inheritance Approach and The Multiple Inheritance Approach ... Ok, I'm working at it... and this MainWindow is the name of my main window which I gave to it by designer, right?

[patrik08]

I use a tool to create cpp (source) && h (header file)


Finaly on main to show the gui you use on main...
## MainWindow is class name....
MainWindow::self()->setWindowTitle( _PROGRAM_TITLE_ );
MainWindow::self()->show();


download QTutils tool -> http://ppk.ciz.ch/qt_c++/QT_utils.zip
cd QT_utils
qmake
make

Open QTUtils insert the class name on top && select mainwindow/Dialog/Widged type same as ui file && generate the code as header & source ... or only as header....

Put the file on projekt dir && run && main.cpp
on cmd dir qmake -project
call the dialog on main...

but on top from pro file ...

MOC_DIR = build/.moc
RCC_DIR = build/.rcc
OBJECTS_DIR = build/.obj
UI_DIR = ui

and final
qmake && make.