Shared Library Dialog

[TigerBunny]

Hi @kshegunov

I did add QT+= widgets, but it didn't change the error.

#-------------------------------------------------

Project created by QtCreator 2016-03-03T10:18:32

#-------------------------------------------------

QT -= gui
QT += widgets

TARGET = SharedLibTest
TEMPLATE = lib

DEFINES += SHAREDLIBTEST_LIBRARY

SOURCES += sharedlibtest.cpp
dialog.cpp

HEADERS += sharedlibtest.h
sharedlibtest_global.h
dialog.h

unix {
target.path = /usr/lib
INSTALLS += target
}

FORMS +=
dialog.ui

I have not researched "plugins". I heard the term and assumed it referred to adding functionality to the IDE. I'll take a look at that.

ty.

[TigerBunny]

@kshegunov, I read the link. Are you sure "plugins" is what I want?

I simply want to start seeing if Qt has the ability to be modular by loading a dialog inside an application where the dialog is replaceable without recompiling the application. Much like a resource .dll is in Windows.

Do you know if there is an example of using "plugins" to load a dialog?

[mrjj]

hi
please try/read this small sample
http://doc.qt.io/qt-5/qtwidgets-tools-echoplugin-example.html

Plugins can BOTH be to extend the qt. but same method/functionality can also be used to extend any Qt app.
So its like with DLLS just more modern using interfaces.
So it can easy be a modul for sharing Dialogs or what ever needed.

[TigerBunny]

@mrjj

The example doesn't seem to show a dialog (or any other resource) inside a module. It appears to simply echo text back from a module without any resources to an application.

Ideally I would like an example already done that demonstrates my goal. If there is none, the next choice would be a tutorial on how to do it.

Failing all of that, documentation that will give me confidence this will work. I can work from there to create my own example.

I would very much appreciate a full example.

[mrjj]

Ok. I know no samples that pops a dialog.
The other examples are about expanding the host application.
http://doc.qt.io/qt-5/qtwidgets-tools-plugandpaint-example.html

So im afraid u must keep looking.

[mrjj]

@TigerBunny
Hi
I was bored. so I modified echo sample to open dialog
https://www.dropbox.com/s/qzunmovatpbmmai/withdialog.zip?dl=0
dialog lives in plugin.
note the UI file is the resource.

[TigerBunny]

@mrjj, I don't see a UI file. All I get is an error message. Also, there is only 1 project.

I would expect an example to have 2 projects. One that creates the plugin with the dialog, the other an application that uses it. Are my expectations not correct?

[mrjj]

ok let me check zip. there should be 2 folders. did u unzip correctly?

[mrjj]

@TigerBunny
hi
for me all is in zip ?
http://postimg.org/image/hbjkgv7vt/

including the UI file. in the plugin folder

Make sure you unzip it all. do not click inside the zip file.
extract all first.

[TigerBunny]

@mrjj ,

I must have used the wrong extraction procedure. I'm not up on Windows compression, my mistake.

I'll take a look. This looks much better. Thanks.

[mrjj]

@TigerBunny
well windows native zip handling, does "help" one by sort of showing like a folder. :)
Note. to add dialog to sample was very little.
Just add Dialog via FIle->New and then add include to plugin and change
interface function to show ( exec) dialog.

[TigerBunny]

@mrjj

This works, but I can't find the output file. I assume there is something like a .dll this produces. How do I find it and what would it be called?

[mrjj]

yes its a DLL
for me its in
E:\build-echoplugin-Desktop_Qt_5_5_0_MinGW_32bit-Debug\plugins

The PRO file alters the destination.
Its so the main program can find it.

look for echoplugind.dll

it might also copy to
$$[QT_INSTALL_EXAMPLES]/widgets/tools/echoplugin/plugin

[kshegunov]

@TigerBunny
It seems @mrjj beat me to it. This thread, however, could also be useful for you.