spsingh
31st July 2010, 12:38
I am using Qt 4.5 (on VS 2008) which has been built dynamically(debug and release). I have linked my app to the <QTDIR>\plugins\imageformats\qgifd4.lib.
I create a QImage from a gif file on disk. But the QImage returned is null. I logged the loading of the gif plugin using QT_DEBUG_PLUGINS flag. The gif plugin logs are as below
'MyApp.exe': Loaded 'C:\Qt\VS45\qt\plugins\imageformats\qgifd4.dll', Symbols loaded.
'MyApp.exe': Unloaded 'C:\Qt\VS45\qt\plugins\imageformats\qgifd4.dll'
I also debugged the creation of QImage. In the function createReadHandlerHelper() the code looks like this
QFactoryLoader *l = loader();
QStringList keys = l->keys();
after this when the code searches for the "gif" extension in these keys nothing is found.
Does it mean that the gif plugin is corrupt? Why is the gif plugin getting unloaded? What am I doing wrong? Please help!! I have stuck here for a long time.
I create a QImage from a gif file on disk. But the QImage returned is null. I logged the loading of the gif plugin using QT_DEBUG_PLUGINS flag. The gif plugin logs are as below
'MyApp.exe': Loaded 'C:\Qt\VS45\qt\plugins\imageformats\qgifd4.dll', Symbols loaded.
'MyApp.exe': Unloaded 'C:\Qt\VS45\qt\plugins\imageformats\qgifd4.dll'
I also debugged the creation of QImage. In the function createReadHandlerHelper() the code looks like this
QFactoryLoader *l = loader();
QStringList keys = l->keys();
after this when the code searches for the "gif" extension in these keys nothing is found.
Does it mean that the gif plugin is corrupt? Why is the gif plugin getting unloaded? What am I doing wrong? Please help!! I have stuck here for a long time.