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Revise QObject::connect documentation. 

Change-Id: I07d593b6b2c3d5c8843212d5a888525ac29ca1b0
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
bb10
Mitch Curtis 2012-11-19 09:58:24 +01:00 committed by The Qt Project
parent a0af81c086
commit 603414525d
1 changed files with 5 additions and 4 deletions
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9
src/corelib/kernel/qobject.cpp
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@ -2381,15 +2381,16 @@ static inline void check_and_warn_compat(const QMetaObject *sender, const QMetaM
can be connected to one slot.
If a signal is connected to several slots, the slots are activated
in the same order as the order the connection was made, when the
in the same order in which the connections were made, when the
signal is emitted.
The function returns a handle to a connection if it successfully
connects the signal to the slot. The Connection handle will be invalid
The function returns a QMetaObject::Connection that represents
a handle to a connection if it successfully
connects the signal to the slot. The connection handle will be invalid
if it cannot create the connection, for example, if QObject is unable
to verify the existence of either \a signal or \a method, or if their
signatures aren't compatible.
You can check if the QMetaObject::Connection is valid by casting it to a bool.
You can check if the handle is valid by casting it to a bool.
By default, a signal is emitted for every connection you make;
two signals are emitted for duplicate connections. You can break