path: root/config_help.txt
diff options
authorJohan Klokkhammer Helsing <>2018-02-14 15:51:38 +0100
committerJohan Helsing <>2018-02-20 09:21:53 +0000
commit093d85393fbacf68028e3b5fd39329878757d603 (patch)
treea315db93791b402ee47c345a3374f09dcdfe52a8 /config_help.txt
parent3190edb07735bb47b7cf85c582d415ab6487a446 (diff)
Support multiple entries in the Qt platform plugin string
[ChangeLog][QtGui] QT_QPA_PLATFORM and the -platform argument now support a list of platform plugins in prioritized order. Platforms are separated by semicolons. The plugins are tried in the order they are specified as long as all preceding platforms fail gracefully by returning nullptr in the implementation of QPlatformIntegrationPlugin::create() This is useful on Linux distributions where the Wayland plugin may be installed, but is not supported by the current session. i.e. if X11 is running or if the compositor does not provide a compatible shell extension. Example usage: QT_QPA_PLATFORM="wayland;xcb" ./application or ./application -platform "wayland;xcb" Task-number: QTBUG-59762 Change-Id: Ia3f034ec522ed6729d71acf971d172da9e68a5a0 Reviewed-by: Gatis Paeglis <>
Diffstat (limited to 'config_help.txt')
1 files changed, 2 insertions, 1 deletions
diff --git a/config_help.txt b/config_help.txt
index 4be797cc6b..f61601ec7a 100644
--- a/config_help.txt
+++ b/config_help.txt
@@ -274,7 +274,8 @@ Gui, printing, widget options:
(Windows only)
-combined-angle-lib .. Merge LibEGL and LibGLESv2 into LibANGLE (Windows only)
- -qpa <name> .......... Select default QPA backend (e.g., xcb, cocoa, windows)
+ -qpa <name> .......... Select default QPA backend(s) (e.g., xcb, cocoa, windows)
+ A prioritized list separated by semi-colons.
-xcb-xlib............. Enable Xcb-Xlib support [auto]
Platform backends: