QWidget: Must construct a QApplication before a QPaintDevice

[agostain]

hi

i have the same problem. i use qt-4.5.2 and qwt 5.2 on winXP. i tried all my code in linux and all works fine.

can anybody of you tell me the procedure on how to compile first qt and then qwt , in the right way?? i don't know why i get these problem! please!

thank you in advance

[Saurabh Singh]

Hi... i also have a similar question.. what if my application doesnot have any main function.. how would i construct QApplication???? Any idea????
I am using firebreath integrated with QT library it doesnt have any main function and i am using QMacCocoaViewContainer during the compilation its giving me same error "QWidget Must construct a QApplication before a QPaintDevice" how should i declare QApplication

[wysota]

what if my application doesnot have any main function..

Then it is not an application.