How to develop a UI in Qt for a C program

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Hi,

Would like to know how to develop a UI for a C program using Qt. What are all the essentials needed. I have installed Qt creator.

Do i need Qt tool or Qt Designer or Qt SDK, are there any other tool needed for developing the UI or, can i just create with Qt Creator itself. I am new to this, suggest your ideas on this and how the above task can be done.

Posted 6-Sep-15 19:08pm

venkat28vk

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TheHumbleGuy · Answer 1 · 2015-09-06T19:45:00

Solution 1

Hi,

first of all -> Qt is C++

Qt supports different variants of UI implementation. QWidget-based and QtQuick-based. If you create a basic desktop application i would recommend the QWidget based way.

Its probably the best to start with a small example to understand the basic concept of Qt. You can find one in the Qt docs:

Getting started:
http://doc.qt.io/qt-5/gettingstarted.html

QtWidget example:
http://doc.qt.io/qtcreator/creator-writing-program.html[^]

THG

Posted 6-Sep-15 19:45pm

TheHumbleGuy

Comments

venkat28vk 7-Sep-15 1:49am

Can i use this to develop a UI for C program, because i have developed a set of codes in C and i need to develop a UI for various operations.

TheHumbleGuy 7-Sep-15 2:00am

Of course. You can use your C code from your Qt C++ application.

venkat28vk 7-Sep-15 2:15am

I have just now tried to create a simple UI using Qt Creator, but i am facing some error in this. And one more doubt is Qt creator is enough or do i need any other packages. I am also getting an error stating that "error No such file or directory".

TheHumbleGuy 7-Sep-15 2:18am

What kind of errors?

venkat28vk 7-Sep-15 2:19am

No such file or directory i am getting

venkat28vk 7-Sep-15 2:18am

Could you kindly assist me in developing Qt based application for C code because i am new to this and i need someone who has knowledge on the same.

TheHumbleGuy 7-Sep-15 2:22am

Well, i'm not taking your hand :P
The tutorials are going to do that. Did you try one of them?

Which file or directory could not be found? You need to be more precise on your error messages.

venkat28vk 7-Sep-15 3:04am

I have just created a UI with send and exit button and in the send button code i have given one stmt on button click, also is there any way to compile the code before running it?

TheHumbleGuy 7-Sep-15 3:07am

On the bottom left in QtCreator is a "Build" button, which compiles the code without running it.

TheHumbleGuy 7-Sep-15 2:29am

The concept of your application should be like:
- Create C++ Qt App with GUI
- Link against your C code library

Do you have knowledge about the basic concept of shared/static linked libraries in C/C++?

—THG

Sergey Alexandrovich Kryukov 7-Sep-15 1:50am

5ed.
—SA