<![CDATA[Adding a QtCreator Library to a Project]]>I Opened QtCreator, selected New Project and then Library, a C++ library. Now I want to add it to another Project: I am tired of using add new for both headers and sources for all the classes. I have that Library, but I cannot find a way to add it to another project--I was succssful in the past, but I forgot how I did it. I tried all the steps in the documentation to no avail. I did build the .pro file and it worked; however, I promoted Widget to one of the classes in the library. When I compiled I get an UI error that it cannot find the .h file of the promoted class. It seems to require the full path. I believe that I found the problem in the XML file generated by the designer, but the XML file is read only.

Does anyone know how to add a QtCreator Library, it is a directory, not as file; it contains the .h and .cpp files and a .pro file?

]]>https://forum.qt.io/topic/139319/adding-a-qtcreator-library-to-a-projectRSS for NodeThu, 05 Nov 2026 06:10:06 GMTWed, 14 Sep 2022 15:48:05 GMT60<![CDATA[Reply to Adding a QtCreator Library to a Project on Sat, 17 Sep 2022 04:07:07 GMT]]>I have a subdir project with its .pro file. I build new subproject and add it to my project.
Then I change the new subproject .pro to "TEMPLATE = lib" and rebuild the entire project.
Then I add the new (internal) library using "add library " to my main .pro or to whatever subproject needs it. .
Little convoluted but reliable and repeatable.
( I am using Linux, if it makes a difference )

]]>https://forum.qt.io/post/729083https://forum.qt.io/post/729083Sat, 17 Sep 2022 04:07:07 GMT<![CDATA[Reply to Adding a QtCreator Library to a Project on Wed, 14 Sep 2022 16:35:26 GMT]]>@ofmrew A followup: I deleted the class from the Library and created it the normal way. It seems to work, but I would like to do it the correct way and not built the .pro file for each project.

]]>https://forum.qt.io/post/728739https://forum.qt.io/post/728739Wed, 14 Sep 2022 16:35:26 GMT