Changing QMainWindows backgroundcolor

[dennis81]

Hi,

I want to change the backgroundcolor of QMainWindow.
setStyleSheet("QMainWindow {background-color: #000000}"); changes the background color of menubar, but not of the centralwidget.
QMainWindow::centralWidget(); returns a NULL-Pointer.

Is there a special stylesheet tag for the empty centralwidget area?

[sonulohani]

MainWindow->setStyleSheet("background-color: rgb(0, 0, 0);");

MainWindow->setStyleSheet("background-color: rgb(0, 0, 0);");

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[dennis81]

MainWindow->setStyleSheet("background-color: rgb(0, 0, 0);");

MainWindow->setStyleSheet("background-color: rgb(0, 0, 0);");

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It does not affect the central widget. It is still gray :-(

[anupam]

Try to use setpallete()

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Added after 14 minutes:

Try to use setpallete()

[dennis81]

The solution is to set a centralwidget and change its background:

setCentralWidget(mMdiArea);
QBrush backBrush;
backBrush.setTexture(QPixmap(":/background.png"));
mMdiArea->setBackground(backBrush);