Input method plugin for Qt5 not working

Daniel T

Hi my friends.
I have a input plugin named "libgcinplatforminputcontextplugin.so" inside ...../plugins/platforminputcontexts" (Linux) and if i run a Qt5 program it not activate this plugin after a "export QT_IM_MODULE=gcin". This directory is right because if i run a Qt5 program after "export QT_IM_MODULE=vkim" it will activate another input method called "vkim". If vkim-plugin not is in this directory, "vkim" input system also will not work. So this, bring me to the question : why is not working "gcin"-plugin ?
"gcin" main interface is written inside header "gcin-qt5.h", his interface is :

#include <QtGui/qpa/qplatforminputcontextplugin_p.h>
#include <QtCore/QStringList>

#include "qgcinplatforminputcontext.h"

class QGcinPlatformInputContextPlugin : public QPlatformInputContextPlugin
{
    Q_OBJECT
public:
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QPlatformInputContextFactoryInterface.5.1" FILE "gcin.json")
    QStringList keys() const;
    QGcinPlatformInputContext *create(const QString& system, const QStringList& paramList);
};

Somebody undestand about input contexts and can help me ?
Can be some another type of problem ?
Inside code of "keys()" and "create(...)" y write a QMessageBox::information(0,0,"...") but it never write nothing after :

export QT_IM_MODULE=gcin
./some_qt5_program

Thanks for any help.

Daniel

Daniel T

Hi
Using

export QT_DEBUG_PLUGINS=1

i discover where is a problem. Qt can not found a library which depend on this plugin.
I resolve it partially copying this "*.so" to a same folder as a executable.
Better would be to know, which environment variable need to set in order Qt can found it, or to know where Qt go to search this library.
greatings, Daniel

SGaist

Hi,

LD_LIBRARY_PATH is probably what you are looking for

Daniel T

Hi SGaist.
I will give it a try. May be on .profile file or something else set this environment variable.
For the time, i simple copy this *.so file to installation folder of Qt :
/home/daniel/Qt/5.5/gcc_64
and it works, except for "designer", but i never use it.
Thanks for you idea.
Daniel

Daniel T

Now i tried with

export LD_LIBRARY_PATH ...
designer

... and it works (open designer). So i fill simply set this variable at begin of my system.
Thanks. Daniel

Daniel T

Hi
This is interesting, because i have 2 different places in which i install Qt, one in /opt in another in /home/daniel, some programs refere to one library place (/home/daniel/Qt/5.5/gcc_64/lib) and "designer" refere to /opt/Qt/5.5/gcc_64/lib.
I not need to set LD_LIBRARY_PATH.
After copy this one file to /opt/Qt/5.5/gcc_64/lib, "designer" also works.
Daniel