[Interest] using designer plugin in application

[Joseph Crowell]

At least in the last 6 years since I started using Qt, plugins must be 
compiled against the same compiler that Designer/Creator were compiled 
against or they won't show up. That means the same version of Visual 
Studio (2008, 2010, 2012). I think Designer/Creator in the packages are 
compiled against VS 2010. The Creator/Designer compiled against mingw 
obviously won't show VS compiled plugins.

On 12/03/2013 11:00 AM, Graham Labdon wrote:
>
> Hi
>
> I have read this but cannot get it to work (I am using Qt5.1.1 with 
> Visual Studio
>
> I have a library called Widgets.dll that contains 1 class declared as
>
> #include <QLabel>
>
> #include "widgets_global.h"
>
> class WIDGETS_EXPORT MyLabel : public QLabel
>
> {
>
> Q_OBJECT
>
> public:
>
> MyLabel(QWidget *parent);
>
> ~MyLabel();
>
> private:
>
> };
>
> I have set up my plugin project so that it can see the header file for 
> MyLabel and can see the Widgets.lib
>
> The plugin project builds without error but is not visible in Designer
>
> Can anyone see the reason for this?
>
> Thanks
>
> *From:*Harish Surana [mailto:surana4u at gmail.com]
> *Sent:* 03 December 2013 10:20
> *To:* Graham Labdon
> *Cc:* interest at qt-project.org
> *Subject:* Re: [Interest] using designer plugin in application
>
> Yes it is technically possible to make the widgets accessible to Qt 
> Designer without linking /widgets dll/ against /QtDesigner4.dll/. Some 
> possible approaches are described here: 
> http://qt-project.org/doc/qt-4.8/designer-creating-custom-widgets.html 
> (see the section "Splitting up the Plugin").
>
> On Tue, Dec 3, 2013 at 10:31 AM, Graham Labdon 
> <Graham.Labdon at avalonsciences.com 
> <mailto:Graham.Labdon at avalonsciences.com>> wrote:
>
> Hi
>
> I have developed a number of Qt Designer plugins and can use them in 
> my applications.
>
> But obviously I need my apps to link against the plugin library which 
> means when I deploy the application I need to deploy the plugin 
> library as well.
>
> What I would like is for widget classes to be compiled into one 
> library that both the application and the designer plugin can use but 
> I have been unable to achieve this.
>
> Is this possible?
>
>
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>
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