Error in QT 4

[Qt 4.8 prasad]

/home/osboxes/hello/hello.cpp:8: error: expected primary-expression before ')' token
myapp.setActiveWindow(QWidget);
^

[Abrar]

for be more specific if you can show your code that would be good. But i think you have missed

;

at line 7 at last...

[Chris Kawa]

QWidget is a class name, you can't pass it as a function parameter. You need to pass a variable name there, in this case a pointer to a widget.