c++ - removing white separator form between QMenu and QToolBar -


i have written qmenu , qtoolbar in qt. that's got:

screenshot

i can't find way remove white separator between qmenu(file, edit) , qtoolbar(two buttons piano icons).

code:

mainwindow::mainwindow() {      this->setstylesheet("background-color: black;");     initmenu();     initbuttons();  }  void mainwindow::initmenu() {      menubar()->setstylesheet("background: #555555; "                              "color: #eeeeee; "                              "selection-background-color: #222222; "                              "border-color:#eeeeee;");      qmenu *filemenu = menubar()->addmenu("file");      qaction *newfileaction = new qaction("new", this);     newfileaction->setshortcut(qkeysequence::new);     newfileaction->setstatustip("create new file.");     //connect     filemenu->addaction(newfileaction);      qaction *openfileaction = new qaction("open", this);     openfileaction->setshortcut(qkeysequence::open);     openfileaction->setstatustip("open file.");     //connect     filemenu->addaction(openfileaction);      qaction *savefileaction = new qaction("save", this);     savefileaction->setshortcut(qkeysequence::save);     savefileaction->setstatustip("save file.");     //connect     filemenu->addaction(savefileaction);      qaction *saveasfileaction = new qaction("save as", this);     saveasfileaction->setshortcut(qkeysequence::saveas);     saveasfileaction->setstatustip("save file file.");     //connect     filemenu->addaction(saveasfileaction);      filemenu->addseparator();      qaction *quitaction = new qaction("quit", this);     quitaction->setshortcut(qkeysequence::quit);     quitaction->setstatustip("quit program.");     //connect     filemenu->addaction(quitaction);      qmenu *editmenu = menubar()->addmenu("edit");     qaction *copyaction = new qaction("copy", this);     copyaction->setshortcut(qkeysequence::copy);     copyaction->setstatustip("copy.");     //connect     editmenu->addaction(copyaction);  }  void mainwindow::initbuttons() {       qtoolbar *buttontoolbar = addtoolbar("buttons");     buttontoolbar->setstylesheet("background: #555555");     buttontoolbar->setmovable(false);      const qicon pianoicon = qicon::fromtheme("piano-roll",qicon(":/buttons/b_piano.png"));     qaction *pianoaction = new qaction(pianoicon, tr("&piano roll"), this);     pianoaction->setshortcut(qkeysequence(qt::ctrl + qt::key_1));     pianoaction->setstatustip("opens piano roll window.");     //connect();     buttontoolbar->addaction(pianoaction);      const qicon piano2icon = qicon::fromtheme("piano-roll2",qicon(":/buttons/i_piano.png"));     qaction *piano2action = new qaction(piano2icon, tr("&piano roll"), this);     piano2action->setshortcut(qkeysequence(qt::ctrl + qt::key_2));     piano2action->setstatustip("opens piano roll window number two.");     //connect();     buttontoolbar->addaction(piano2action); }

in mainwindow run 2 functions. first function creates qmenu. second 1 creates qtoolbar 2 buttons.


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