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| author | Sze Howe Koh <szehowe.koh@gmail.com> | 2014-09-24 23:24:18 +0800 |
|---|---|---|
| committer | Sze Howe Koh <szehowe.koh@gmail.com> | 2014-09-25 01:44:03 +0200 |
| commit | 28618df85874c4bc3091aac5d901d3732eb193fb (patch) | |
| tree | 96491ef14813d6d2ac9a1504bae6f0c33c238eca | |
| parent | db212af33e4d9dbadf1c859dba8d714ff6f3daab (diff) | |
Doc: Suggest an alternative to connections with default params
The new signal-slot connection syntax does not support default
parameters. Lambda functions are a suitable replacement.
Change-Id: I906856104d582c1139c4b78b885566156c7f2f78
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
| -rw-r--r-- | doc/src/signalslotsyntaxes.qdoc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/src/signalslotsyntaxes.qdoc b/doc/src/signalslotsyntaxes.qdoc index e4009a69f..0ff5ed7c5 100644 --- a/doc/src/signalslotsyntaxes.qdoc +++ b/doc/src/signalslotsyntaxes.qdoc @@ -179,6 +179,10 @@ to QApplication::aboutToQuit(), even though the latter has no arguments. The functor-based connection will produce a compile-time error: \snippet snippets/signalsandslots/signalslotsyntaxes.cpp defaultparams +To work around this limitation with the functor-based syntax, connect the signal to +a lambda function that calls the slot. See the section above, \l{Making Connections +to Lambda Expressions}. + \section1 Selecting Overloaded Signals and Slots |