diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/src/examples/screenshot.qdoc | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/doc/src/examples/screenshot.qdoc b/doc/src/examples/screenshot.qdoc index cf6e68b6df..4723d3d43c 100644 --- a/doc/src/examples/screenshot.qdoc +++ b/doc/src/examples/screenshot.qdoc @@ -172,16 +172,15 @@ \snippet examples/desktop/screenshot/screenshot.cpp 5 - We take the screenshot using the static QPixmap::grabWindow() + Using the static function QApplication::primaryScreen(), we + obtain the QScreen object for the application's main screen. + + We take the screenshot using the QScreen::grabWindow() function. The function grabs the contents of the window passed as an argument, makes a pixmap out of it and returns that pixmap. - - We identify the argument window using the QWidget::winID() - function which returns the window system identifier. Here it - returns the identifier of the current QDesktopWidget retrieved by - the QApplication::desktop() function. The QDesktopWidget class - provides access to screen information, and inherits - QWidget::winID(). + The window id can be obtained with QWidget::winId() or QWindow::winId(). + Here, however, we just pass 0 as the window id, indicating that we + want to grab the entire screen. We update the screenshot preview label using the private \c updateScreenshotLabel() function. Then we enable the \uicontrol {New |