c++ - Compiler does not see QX11Info

Question

I've created a little class to set some global shortcuts. But now, when i compile my app i see many errors:

In file included from ../src/GlobalShortcut/globalshortcut_linux.h:7:0,
                 from moc_globalshortcut_linux.cpp:9:
../../../QtStable/5.4/gcc_64/include/QtWidgets/qstyleoption.h:117:9: error: expected identifier before numeric constant
         None = 0x00,
         ^
../../../QtStable/5.4/gcc_64/include/QtWidgets/qstyleoption.h:117:9: error: expected '}' before numeric constant
../../../QtStable/5.4/gcc_64/include/QtWidgets/qstyleoption.h:117:9: error: expected unqualified-id before numeric constant
In file included from ../../../QtStable/5.4/gcc_64/include/QtCore/qglobal.h:1085:0,
                 from ../src/GlobalShortcut/globalshortcut_linux.h:4,
                 from moc_globalshortcut_linux.cpp:9:
../../../QtStable/5.4/gcc_64/include/QtWidgets/qstyleoption.h:121:36: error: 'FrameFeature' was not declared in this scope
     Q_DECLARE_FLAGS(FrameFeatures, FrameFeature)
                                    ^

When i commented my class errors are gone. Here is it: http://pastebin.com/k5qSvqDn

Ok, i inherited class from QWidget instead of QMainWindow (i dont know why :D) and now i have another errors:

mainwindow.o: In function `X11ShortCut::addShortCut(QKeySequence, QString)':
globalshortcut_linux.h:30: undefined reference to `QX11Info::display()'
globalshortcut_linux.h:31: undefined reference to `QX11Info::appRootWindow(int)'
globalshortcut_linux.h:31: undefined reference to `QX11Info::display()'
globalshortcut_linux.h:32: undefined reference to `QX11Info::display()'

In my .pro file i've added LIBS += -lX11, it didnt helped.

So, what is the problem?

Answer 1

I have not checked, but I believe you only missed adding the following to your .pro file, as stated at the docs

QT += gui x11extras

It's likely that that you may be missing a header file, but without the error message, I find it a bit hard to figure it out since I've never touched X11 stuff directly.

Hope it helps.