Qt Designer plugin on windows

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Hi All,

I have successful created a Qt Designer plugin (customer groupbox) on linux. This plugin I also can successful use in my main window where I do display some customer information(compile and run without any errors).

Now I'm switching over to windows and I'm getting my first trouble with it. Creating the dll and the lib files could be done without any problems. But if I use the created plugin in a main window, I get the follwing errors/warnigs:

Code:

1>moc_userdetailsgb.cpp
1>.\debug\moc_userdetailsgb.cpp(41) : warning C4273: 'staticMetaObject': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'public: static QMetaObject const UserDetailsGB::staticMetaObject'
1>.\debug\moc_userdetailsgb.cpp(41) : error C2491: 'UserDetailsGB::staticMetaObject': Definition von Statisches Datenmember fÃ¼r dllimport nicht zulÃ¤ssig
1>.\debug\moc_userdetailsgb.cpp(47) : warning C4273: 'UserDetailsGB::metaObject': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'metaObject'
1>.\debug\moc_userdetailsgb.cpp(52) : warning C4273: 'UserDetailsGB::qt_metacast': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'qt_metacast'
1>.\debug\moc_userdetailsgb.cpp(60) : warning C4273: 'UserDetailsGB::qt_metacall': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'qt_metacall'
1>Das Buildprotokoll wurde unter "file://d:\Development\Projects\Test_MainWindow\debug\BuildLog.htm" gespeichert.
1>testApp - 1 Fehler, 4 Warnung(en)
========== Erstellen: 0 erfolgreich, Fehler bei 1, 0 aktuell, 0 Ã¼bersprungen ==========

Here the plugin pro file.

Code:

TEMPLATE	= vclib
LANGUAGE	= C++
TARGET	= userdetailsgb
DESTDIR  	= C:\Qt\4.2.3\plugins\designer
 
target.path      	= $$[QT_INSTALL_PLUGINS]/designer
INSTALLS         += target 
CONFIG += designer plugin debug_and_release
 
DEFINES += USERDETAILSGB_LIB
 
######################################
# Header files
######################################
HEADERS = 	./src/userdetailsgb.h \
		./src/userdetailsgbplugin.h \
		./src/userdetailsgbpluginglobal.h \
 
 
######################################
# Source files
######################################
SOURCES = 	./src/userdetailsgb.cpp \
                  	./src/userdetailsgbplugin.cpp

here the userdetailsgbpluginglobal.h file:

Code:

#ifndef USERDETAILSGBPLUGINGLOBAL_H
#define USERDETAILSGBPLUGINGLOBAL_H
 
#include <Qt/qglobal.h>
 
#ifdef USERDETAILSGB_LIB
# define USERDETAILSGBPLUGIN_EXPORT Q_DECL_EXPORT
#else
# define USERDETAILSGBPLUGIN_EXPORT Q_DECL_IMPORT
#endif
 
#endif // USERDETAILSGBPLUGINGLOBAL_H

here the userdetailsgbplugin.h file

Code:

#ifndef USERDETAILSGBPLUGIN_H
#define USERDETAILSGBPLUGIN_H
 
#include "userdetailsgbpluginglobal.h"
 
#include <QObject>
#include <QDesignerCustomWidgetInterface>
 
class USERDETAILSGBPLUGIN_EXPORT UserDetailsGBPlugin : public QObject, public QDesignerCustomWidgetInterface
{
	Q_OBJECT
	Q_INTERFACES( QDesignerCustomWidgetInterface )
 
	public:
		UserDetailsGBPlugin( QObject *parent = 0 );
 
		bool isContainer() const;
		bool isInitialized() const;
		QIcon icon() const;
		QString domXml() const;
		QString group() const;
		QString includeFile() const;
		QString name() const;
		QString toolTip() const;
		QString whatsThis() const;
		QWidget *createWidget( QWidget *parent );
		void initialize( QDesignerFormEditorInterface *core );
 
	private:
		bool initialized;
};
 
#endif	// USERDETAILSGBPLUGIN_H

here the userdetailsgb.h file

Code:

#ifndef USERDETAILSGB_H
#define USERDETAILSGB_H
 
#include <QObject>
#include <QGroupBox>
#include <QtDesigner/QDesignerExportWidget>
 
class QDESIGNER_WIDGET_EXPORT UserDetailsGB : public QGroupBox
{	
	Q_OBJECT
 
	public:
		UserDetailsGB( QWidget * parent = 0 );
		~UserDetailsGB() {}
 
};
 
#endif 	// USERDETAILSGB_H

and finally here the main app pro file

Code:

TEMPLATE = vcapp
TARGET = testApp
DEPENDPATH += .
INCLUDEPATH += .
 
# Input
HEADERS += testmainwindow.h userdetailsgb.h
FORMS += mainwindow.ui
SOURCES += main.cpp testmainwindow.cpp

I'm using MSVC 2005 Express, Windows XP, Qt 4.2.3.
Any help on this would be great. Many thanks.
big4mil

29th May 2007, 23:39
high_flyer

Re: Qt Designer plugin on windows

Are you sure this is the first error?
Did you add Q_EXPORT_PLUGIN2(customwidgetplugin, MyCustomWidget) at the bottom of userdetailsgbpluginglobal.cpp?

Re: Qt Designer plugin on windows

Hi,

thanks for your reply!

Yes, it is the first error. Below you can see the whole compiler output:

Code:

1>------ Neues Erstellen gestartet: Projekt: testApp, Konfiguration: Debug Win32 ------
1>Die Zwischen- und Ausgabedateien fÃ¼r das Projekt "testApp" mit der Konfiguration "Debug|Win32" werden gelÃ¶scht.
1>MOC userdetailsgb.h
1>UIC mainwindow.ui
1>MOC testmainwindow.h
1>Kompilieren...
1>main.cpp
1>testmainwindow.cpp
1>moc_testmainwindow.cpp
1>moc_userdetailsgb.cpp
1>.\debug\moc_userdetailsgb.cpp(41) : warning C4273: 'staticMetaObject': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'public: static QMetaObject const UserDetailsGB::staticMetaObject'
1>.\debug\moc_userdetailsgb.cpp(41) : error C2491: 'UserDetailsGB::staticMetaObject': Definition von Statisches Datenmember fÃ¼r dllimport nicht zulÃ¤ssig
1>.\debug\moc_userdetailsgb.cpp(47) : warning C4273: 'UserDetailsGB::metaObject': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'metaObject'
1>.\debug\moc_userdetailsgb.cpp(52) : warning C4273: 'UserDetailsGB::qt_metacast': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'qt_metacast'
1>.\debug\moc_userdetailsgb.cpp(60) : warning C4273: 'UserDetailsGB::qt_metacall': Inkonsistente DLL-Bindung.
1>        d:\development\projects\test_mainwindow\debug\../userdetailsgb.h(52): Siehe vorherige Definition von 'qt_metacall'
1>Code wird generiert...
1>Das Buildprotokoll wurde unter "file://d:\Development\Projects\Test_MainWindow\debug\BuildLog.htm" gespeichert.
1>testApp - 1 Fehler, 4 Warnung(en)
========== Alles neu erstellen: 0 erfolgreich, Fehler bei 1, 0 Ã¼bersprungen ==========

Quote:

Did you add Q_EXPORT_PLUGIN2(customwidgetplugin, MyCustomWidget) at the bottom of userdetailsgbpluginglobal.cpp?

I have included this Qt macro in my userdetailsgbplugin.cpp file and NOT in the userdetailsgbpluginglobal.cpp file (which I actually do not have, the userdetailsgbpluginglobal.h file is just a header file where I do declare my #defines, nothing else.)

Any other ideas?

Many thanks!

30th May 2007, 09:08
high_flyer

Re: Qt Designer plugin on windows

I don't think this will solve the problem, but you must add thead support in CONFIG in the pro file.
Oh, and try a release version.
30th May 2007, 17:33
big4mil

2 Attachment(s)

Re: Qt Designer plugin on windows

Quote:

Originally Posted by high_flyer

I don't think this will solve the problem, but you must add thead support in CONFIG in the pro file.
Oh, and try a release version.

this does not help. I still get the same errors.

I have attached two projects. userdetailsgb will create the qt designer plugin and the test_mainwindow project will use the plugin on a simple main window. So please, if you have time to make a quick test on your system, that would be great.
(MSVC 2005 Express, Windows XP, Qt 4.2.3)

Many thanks for your help.
Best regards
big4mil