qt:signals_and_slots
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| qt:signals_and_slots [2010/12/09 14:41] – [Signals and slots] mithat | qt:signals_and_slots [2010/12/09 15:01] – [Multiple connections] mithat | ||
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| ====== Signals and slots ====== | ====== Signals and slots ====== | ||
| - | Communication between objects in Qt is typically handled by a signal and slots system. Signals are emitted by objects in response to user interaction or other stimuli, and these signals are received by slots in other objects. Connections are made between signals and slots by the programmer using some simple non-C++ code foo. The behavior associated with a received signal is determined programatically. Lots of Qt classes have predefined signals and slots. You can implement new signals and slots in classes you derive yourself. | + | Communication between objects in Qt is typically handled by a signal and slots system. Signals are emitted by objects in response to user interaction or other stimuli, and these signals are received by slots in other objects. Connections are made between signals and slots by the programmer using some Qt macro foo. The behavior associated with a received signal is determined programatically. Lots of Qt classes have predefined signals and slots. You can implement new signals and slots in classes you derive yourself. |
| ===== Making connections ===== | ===== Making connections ===== | ||
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| ===== Multiple connections ===== | ===== Multiple connections ===== | ||
| - | Signals may connect to multiple slots. | + | Signals may connect to multiple slots. |
| - | If a signal connects to multiple | + | In the case of multiple |
| ===== Writing your own slots ===== | ===== Writing your own slots ===== | ||
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| ===== Writing your own signals ===== | ===== Writing your own signals ===== | ||
| A number of signals are defined for many of the classes that make up Qt. It is also possible to implement new (or override existing :?:) signals. | A number of signals are defined for many of the classes that make up Qt. It is also possible to implement new (or override existing :?:) signals. | ||
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| + | ===== Examples ===== | ||
| + | Some examples are [[signal slot examples|here]]. | ||
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qt/signals_and_slots.txt · Last modified: 2011/04/01 11:10 by mithat