Screenshot secondary monitor

[Yakov Eremin]

QScreen *screen = QGuiApplication::screens().last();
QPixmap screenPixmap = screen->grabWindow(0, 0, 0, screen->size().width(), screen->size().height());
ui->label->setPixmap(screenPixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));

QGuiApplication::screens().size() prints 2;

Not important, is it QGuiApplication::screens().last() or QGuiApplication::screens().first, it shows same picture (primary screen).
If primary screen at left, I can take texture of secondary with positive X offset, if primary at right, with negative X offset.

Question: Is it a bug, and how I can to understand position of primary screen, is it left from secondary or not.

Same problem on Qt4: http://lists.qt-project.org/pipermail/qt-interest-old/2010-October/028182.html
OS X 10.10, Qt 5.5.1, example project: https://dl.dropboxusercontent.com/u/4852026/Multiscreen.zip

[mchinand]

For the second screen (or both) use the following:

QPixmap screenPixmap = screen->grabWindow(0, screen->geometry().x(), screen->geometry().y(), screen->size().width(), screen->size().height());

[Yakov Eremin]

@mchinand thank you, it works.