diff options
| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2020-01-13 11:20:14 +0100 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2020-01-13 12:50:03 +0100 |
| commit | caab0ad35799df3b2059bd3707b727dc0b5671aa (patch) | |
| tree | f27086142aa2ac29d28d2666925db413c56d74b5 /examples | |
| parent | f936ca4f86e359cb919be9d21ad239618a878559 (diff) | |
Fix Mandelbrot Example documentation with regards to qRegisterMetaType()
The call to qRegisterMetaType() has been removed since the type
is registered as a meta type in Qt 5. Assert on the meta type id instead.
Adapt the documentation accordingly.
Fixes: QTBUG-81254
Change-Id: I0cb459d0dda7a82fc37871605ff634004af0f9f9
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/corelib/threads/doc/src/mandelbrot.qdoc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/examples/corelib/threads/doc/src/mandelbrot.qdoc b/examples/corelib/threads/doc/src/mandelbrot.qdoc index 9e3fdc1dfe..b32fa097b3 100644 --- a/examples/corelib/threads/doc/src/mandelbrot.qdoc +++ b/examples/corelib/threads/doc/src/mandelbrot.qdoc @@ -238,8 +238,7 @@ \snippet threads/mandelbrot/mandelbrotwidget.cpp 1 The interesting part of the constructor is the - qRegisterMetaType() and QObject::connect() calls. Let's start - with the \l{QObject::connect()}{connect()} call. + QObject::connect() call. Although it looks like a standard signal-slot connection between two \l{QObject}s, because the signal is emitted in a different @@ -254,9 +253,10 @@ With queued connections, Qt must store a copy of the arguments that were passed to the signal so that it can pass them to the slot later on. Qt knows how to take of copy of many C++ and Qt - types, but QImage isn't one of them. We must therefore call the - template function qRegisterMetaType() before we can use QImage - as a parameter in queued connections. + types, so, no further action is needed for QImage. + If a custom type was used, a call to the template function + qRegisterMetaType() would be required before the type + could be used as a parameter in queued connections. \snippet threads/mandelbrot/mandelbrotwidget.cpp 2 \snippet threads/mandelbrot/mandelbrotwidget.cpp 3 |