diff options
Diffstat (limited to 'src/x11extras/qx11info_x11.cpp')
| -rw-r--r-- | src/x11extras/qx11info_x11.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/x11extras/qx11info_x11.cpp b/src/x11extras/qx11info_x11.cpp index 85aa9e1..8bea591 100644 --- a/src/x11extras/qx11info_x11.cpp +++ b/src/x11extras/qx11info_x11.cpp @@ -178,14 +178,27 @@ unsigned long QX11Info::appRootWindow(int screen) Returns the number of the screen where the application is being displayed. + This method refers to screens in the original X11 meaning with a + different DISPLAY environment variable per screen. + This information is only useful if your application needs to know + on which X screen it is running. + + In a typical multi-head configuration, multiple physical monitors + are combined in one X11 screen. This means this method returns the + same number for each of the physical monitors. In such a setup you + are interested in the monitor information as provided by the X11 + RandR extension. This is available through QDesktopWidget and QScreen. + \sa display(), screen() */ int QX11Info::appScreen() { if (!qApp) return 0; - QDesktopWidget *desktop = QApplication::desktop(); - return desktop->primaryScreen(); + QPlatformNativeInterface *native = qApp->platformNativeInterface(); + if (!native) + return 0; + return reinterpret_cast<qintptr>(native->nativeResourceForIntegration(QByteArrayLiteral("x11screen"))); } /*! |