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| author | Frederik Gladhorn <frederik.gladhorn@qt.io> | 2018-07-10 15:36:40 +0200 |
|---|---|---|
| committer | Paul Wicking <paul.wicking@qt.io> | 2018-07-16 07:57:55 +0000 |
| commit | 40a98ea750b90e453f552a1d1eb46b9947c951fa (patch) | |
| tree | 9300c26ea7650ba4938bcd637711c9fc0db70f32 /src | |
| parent | 582d221b29bbf7f90d9dc07ab3efa4df089160d7 (diff) | |
Use context when connecting to functors in docs
This is the introduction text to signals and slots and should rather
show best practices. Using context is generally advisable to have
life-time of connections under control.
Change-Id: I213b13d978a38e13834cdbccf1bea06d53ba8320
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Diffstat (limited to 'src')
| -rw-r--r-- | src/corelib/doc/src/objectmodel/signalsandslots.qdoc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/corelib/doc/src/objectmodel/signalsandslots.qdoc b/src/corelib/doc/src/objectmodel/signalsandslots.qdoc index 6d3064d217..0cbbef0502 100644 --- a/src/corelib/doc/src/objectmodel/signalsandslots.qdoc +++ b/src/corelib/doc/src/objectmodel/signalsandslots.qdoc @@ -361,9 +361,11 @@ You can also connect to functors or C++11 lambdas: \code - connect(sender, &QObject::destroyed, [=](){ this->m_objects.remove(sender); }); + connect(sender, &QObject::destroyed, context, [=](){ this->m_objects.remove(sender); }); \endcode + The lambda will be disconnected when the context is destroyed. + The other way to connect a signal to a slot is to use QObject::connect() and the \c{SIGNAL} and \c{SLOT} macros. The rule about whether to |