merry
27th March 2008, 06:43
Hi all
I am working on Qt4.3.4 on Windows XP .
To preview Image formats , I tried to use QtPlugin.
in .pro file, I add
QTPLUGIN += qjpeg qgif
in main.cpp file , I add
Q_IMPORT_PLUGIN(qjpeg)
Q_IMPORT_PLUGIN(qgif)
But I got some linking error
main.obj : error LNK2019: unresolved external symbol "class QObject * __cdecl qt_plugin_instance_qjpeg(void)" (?qt_plugin_instance_qjpeg@@YAPAVQObject@@XZ) referenced in function "public: __thiscall StaticqjpegPluginInstance::StaticqjpegPluginInstan ce(void)" (??0StaticqjpegPluginInstance@@QAE@XZ)
main.obj : error LNK2019: unresolved external symbol "class QObject * __cdecl qt_plugin_instance_qgif(void)" (?qt_plugin_instance_qgif@@YAPAVQObject@@XZ) referenced in function "public: __thiscall StaticqgifPluginInstance::StaticqgifPluginInstance (void)" (??0StaticqgifPluginInstance@@QAE@XZ)
What to do?
Regards
Merry
I am working on Qt4.3.4 on Windows XP .
To preview Image formats , I tried to use QtPlugin.
in .pro file, I add
QTPLUGIN += qjpeg qgif
in main.cpp file , I add
Q_IMPORT_PLUGIN(qjpeg)
Q_IMPORT_PLUGIN(qgif)
But I got some linking error
main.obj : error LNK2019: unresolved external symbol "class QObject * __cdecl qt_plugin_instance_qjpeg(void)" (?qt_plugin_instance_qjpeg@@YAPAVQObject@@XZ) referenced in function "public: __thiscall StaticqjpegPluginInstance::StaticqjpegPluginInstan ce(void)" (??0StaticqjpegPluginInstance@@QAE@XZ)
main.obj : error LNK2019: unresolved external symbol "class QObject * __cdecl qt_plugin_instance_qgif(void)" (?qt_plugin_instance_qgif@@YAPAVQObject@@XZ) referenced in function "public: __thiscall StaticqgifPluginInstance::StaticqgifPluginInstance (void)" (??0StaticqgifPluginInstance@@QAE@XZ)
What to do?
Regards
Merry