[Qt-interest] What is the Use of QPlugin Loader

Kishore Jonnalagadda kitts.mailinglists at gmail.com
Sun Oct 23 17:22:26 CEST 2011


On Oct 21, 2011 1:49 AM, "Malyushytsky, Alex" <alex at wai.com> wrote:
>
> I am not sure I understand the question.
>
> I believe http://doc.qt.nokia.com/latest/qpluginloader.html
>
> is clear :
>
>
>
> “The QPluginLoader class loads a plugin at run-time”
>
> …A Qt plugin is stored in a shared library (a DLL) and offers these
benefits over shared libraries accessed using QLibrary:
>
> QPluginLoader checks that a plugin is linked against the same version of
Qt as the application.

Just a clarification. Shouldn't this be "compatible" qt version? Since the
plugin can be compiled with an older minor version of Qt.

> QPluginLoader provides direct access to a root component object
(instance()), instead of forcing you to resolve a C function manually.”
>
> Alex
>
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> From: qt-interest-bounces+alex=wai.com at qt.nokia.com [mailto:
qt-interest-bounces+alex=wai.com at qt.nokia.com] On Behalf Of Kamatchi
Lakshmanan -ERS, HCL Tech
> Sent: Thursday, October 20, 2011 3:50 AM
> To: qt-interest at qt.nokia.com
> Subject: [Qt-interest] What is the Use of QPlugin Loader
>
>
>
> Hi All,
>
> I want to know why QPluginLoader is used.
>
> For what purpose we use QPluginLoader.
>
> QLibrary is mainly used to resolve symbols. But i dono y QPluginLoader
mainly used for.
>
> instance() method in QPluginLoader  returns QObject Pointer.
>
> Can we get the methods present inside library file using this QObject
pointer.
>
>
>
> I need some idea.
>
>
>
> Thanks ,
>
> Kamatchi
>
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