Baseline tests: grab the ApplicationWindow when testing Controls

When we test Quick Controls, then we use an ApplicationWindow. In that
case, the GrabbingView never renders anything itself, so we have to wait
for the afterRendering signal from the ApplicationWindow to start
grabbing.

Amends 278779e850ec5ad8ce96d5a2e7ef51eccf5166b8.

Change-Id: Idee4107c0eac5945ebec7e083721c0f671d73b8a
Reviewed-by: Santhosh Kumar <santhosh.kumar.selvaraj@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
(cherry picked from commit 8812fbc47df9a1f32c09259763db7593ff833f1c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/baseline/scenegraph/scenegrabber/main.cpp b/tests/baseline/scenegraph/scenegrabber/main.cpp
index 046c535e24..7a55973d60 100644
--- a/tests/baseline/scenegraph/scenegrabber/main.cpp
+++ b/tests/baseline/scenegraph/scenegrabber/main.cpp
@@ -60,7 +60,7 @@ public:
 
         appwindow = qobject_cast<QQuickApplicationWindow *>(window);
         if (preferAppWindow)
-            QObject::connect(this, &QQuickWindow::afterRendering, this, &GrabbingView::startGrabbing);
+            QObject::connect(appwindow, &QQuickWindow::afterRendering, this, &GrabbingView::startGrabbing);
     }
     QQuickApplicationWindow* appWindow() { return appwindow; }