about custom widget plugins

[hesummar]

Hello,everyone. My Qt version is Qt3.3 . I have a problem,when I copy the "filechooser" example in Qt designer manual , run on my machine . I can find "libfilechooser.so" plugin in my /usr/lib/qt3/plugins/designer directory . but in Qt designer, I can't find that widget . Help me please , thank you!

[wysota]

You have probably built it against a debug version of Qt and Designer uses release version of the library. Rebuild the plugin in release mode.

[hesummar]

Hello wysota,How to build Qt sources in release mode ?

[wysota]

Add CONFIG+=release to the project file and make sure there is no CONFIG+=debug there. As for Qt itself, if you didn't compile it from scratch it should already be in release mode. If not, pass -release to configure and recompile.

[hesummar]

Hello wysota . This is my *.pro file:
INCLUDEPATH += .

# Input
HEADERS += filechooser.h plugin.h
SOURCES += filechooser.cpp plugin.cpp

TEMPLATE = lib
LANGUAGE = C++
TARGET = filechooser

DESTDIR = $(QTDIR)/plugins/designer

target.path=$(QTDIR)/plugins/designer

INSTALLS += target
CONFIG += qt warn_on release plugin
DBFILE = plugin.db
I don't know why ,as if my Qt designer can't see the "/usr/lib/qt3/plugins/designer/libfilechooser.so" plugin,can you tell me how can I do?

[jacek]

Try adding CONFIG += thread to your .pro file.

[hesummar]

It is still have this problem,Can someone give me a example? Thank you! hesummar@126.com

[jacek]

It is still have this problem

Did you add "CONFIG += thread" to your plugin's .pro file and recompiled it?

[hesummar]

Yes , really . My operation system is suse linux 10.1 .

[jacek]

Maybe Qt Designer doesn't look for plugins in that directory? Check "Plugin Paths" in Edit -> Preferences.

[hesummar]

I found that the Qt designer didn't look for plugins in that directory , after I edited the plugins paths , The Qt designer still didn't see that plugins , Please give me an example .