Re: Adding Qt5 libs via VS Additional Dependencies

[Anders Broman <anders.broman () ericsson com>]

Hi,
As Graham I’m suspicious about GUI code in plugins. Code “enhancing” the GUI should probably be placed in the 
respective GUI folder(Qt or GTK) and hook into the menus.
I suppose that currently require you to build a custom Wireshark version. Can’t your GUI code be made part of the 
standard version?
Regards
Anders

From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Roland Knall
Sent: den 5 augusti 2016 11:25
To: Developer support list for Wireshark <wireshark-dev () wireshark org>
Subject: Re: [Wireshark-dev] Adding Qt5 libs via VS Additional Dependencies

Paul, could you give an example, why you chose Qt libraries over Gtk? Was it not possible, or is it a personal choice?

I do have plugins for WS, which use Qt, but not for dissectors, so I am just curious, what was missing.

regards
Roland

On Fri, Aug 5, 2016 at 11:20 AM, Graham Bloice <graham.bloice () trihedral com<mailto:graham.bloice () trihedral com>> 
wrote:
On 5 August 2016 at 07:54, Paul Offord <Paul.Offord () advance7 com<mailto:Paul.Offord () advance7 com>> wrote:
Hi,

I have written a plugin dissector that uses some Qt5 functions.  To build with Visual Studio 2013 I have to manually 
add some Qt5 libs via Project -> Properties -> Linker -> Input -> Additional Dependencies.  This works OK but whenever 
I run:

cmake -D ENABLE_CHM_GUIDES=on -G "Visual Studio 12 Win64" ..\

to prepare the environment the Qt5 additional Dependencies are deleted.  How can I add my additional libs to the Cmake 
process in a way that won’t interfere with the standard build process?  Or should I be doing this some completely 
different way?

Thanks and regards…Paul



Although I'm suspicious of why a dissector should need anything from Qt, have a look at the CMake wiki page for 
"Finding a library" at https://cmake.org/Wiki/CMake:How_To_Find_Libraries

Basically add the appropriate find_package(), include_directories() and target_link_libraries() calls to the 
CMakeLists.txt of your plugin for the QT library you want.

Note that this behaviour is by design, CMake generates the Visual Studio solutions and projects from the info in the 
CMakeLists.txt files, there is no way to make changes in the VS IDE and push them back into the CMakeLists.txt files 
(except if you open the file in the VS editor).

You might also have to add steps to the CMakeLists.txt to copy the required Qt DLL to the staging directory and the 
update the packaging scripts to put it into an installer (packaging\nsis\custom_plugins.txt).

--
Graham Bloice

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