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| author | Sze Howe Koh <szehowe.koh@gmail.com> | 2013-01-05 23:50:35 +0800 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-01-29 01:53:20 +0100 |
| commit | d48534302c903113be25a61184b4c9dfb7060df4 (patch) | |
| tree | 02d19c95ee4414544bb79396adad66fe04de0e41 /src/corelib/global | |
| parent | e02ecba61f3a271c4f2559c82904c4b8d3b03e61 (diff) | |
Doc: Fix description about Qt::UniqueConnection
Qt::UniqueConnection is a flag, not a standalone connection type.
Change-Id: Ibafb7306f3d60753a4381897488131e6484d368f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/global')
| -rw-r--r-- | src/corelib/global/qnamespace.qdoc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc index f157190591..02342599a2 100644 --- a/src/corelib/global/qnamespace.qdoc +++ b/src/corelib/global/qnamespace.qdoc @@ -523,11 +523,11 @@ application to deadlock. \value UniqueConnection - Same as AutoConnection, but the connection is made only if - it does not duplicate an existing connection. i.e., if the - same signal is already connected to the same slot for the - same pair of objects, then the connection will fail. This - connection type was introduced in Qt 4.6. + This is a flag that can be combined with any one of the above + connection types, using a bitwise OR. When Qt::UniqueConnection is + set, QObject::connect() will fail if the connection already exists + (i.e. if the same signal is already connected to the same slot + for the same pair of objects). This flag was introduced in Qt 4.6. With queued connections, the parameters must be of types that are known to Qt's meta-object system, because Qt needs to copy the |