How to create and load UI plugins?

[raven-worx]

yes, maybe this was a long shot from me.
But basically it's the same mechanism i was talking about.
Just Qt (QFactoryLoader) does most of the work under the hood automatically.

[IL]

@raven-worx
Hello and thanks,
Regarding your first comment/reply -
Quote:
Simply create a Lib project in QtCreator.
Now the question is if you want a

• list itemshared library (linked dependency - program doesn't run without it), or
• list itema Qt-plugin (discovered and loaded at runtime - program also runs without it)

Then simply add a UI file manually to your QtCreator project.
Right click on your project -> Add New -> Qt -> Qt Designer Form Class
End of Quote
The second option is what I need, and I already did that but after adding UI into the QT plugin, the project doesn't compiled any more, it complain about missing files, like ui_<project-name>.h and more.

• What is the correct way to do that?

Best regards,
IL

[raven-worx]

try re-running qmake.
(Right click on project -> Run qmake)

[IL]

@raven-worx
same thing,
Running qmake is ok but build failed
it should at-least generate ui_project.h file but it doesnt do that.

[kshegunov]

@IL
Do you have your forms in your project, like this:

FORMS += myform.ui

I don't know what IDE you're using, for me QtCreator does this automatically, but it's possible it's different for you.

[IL]

@kshegunov
Yes I do have the file in my form project.
The thing is when I create new QT widgets application project, QtCreator creat the file.ui file and under the output folder build-...-Debug it create a ui_file.h which contains all the UI stuff
But when I create QtPlugin library project and add UI form, the ui_file doesn't create eventhough it adding include of it.
I am working with QT-5.5.0 and Qt Creator 3.4.2

Any idea?

[kshegunov]

@IL
When I go to the New file or project ... menu and then from the sidebar I select Library, I can choose from:

1. C++ library - this is what you actually want
2. QtQuick 1 Extension plugin - this is for QtQuick (not relevant to your case)
3. QtQuick 2 Extension plugin - this is for QtQuick 2 (not relevant to your case as well)
4. Qt Creator Plugin - unless you want to create plugins for QtCreator, this is not your project type.

I don't have a QtPlugin library project in my list.

[raven-worx]

@IL
seems like this is a bug in Qt5's qmake. That the build steps are not created correctly when TEMPLATE=lib
It works perfectly fine in Qt4.

[IL]

@kshegunov
Good,
Now if you go to New Project and select C++ Library
Under Type you will have three options:

• shared library
• statically linked library
• Qt Plugin

I choose the third option, can you see that?

[kshegunov]

@IL
Aha, I see what you mean. Well, you won't be extending Qt, but your application, so choose Shared Library from the dropdown, not Qt Plugin.

[IL]

@kshegunov
Yap, Thanks, Thanks. :-)
Now It's generate all the required files, I also need to add QWidgets in Select Required Models.

Best Regards,
IL