timer class : Handler(anyclass) setter
Description
Sets an instance of an user-defined class that have the handler method.
Syntax
instance.Handler = value
Arguments
| Class | Description |
| user-defined class | An instance of an user-defined class. |
Return value
None
Sample code
Suppose you have the following class definition.
| 1: | class handleA |
| 2: | open method void THandler(dictionary dic) |
| 3: | ... // event handler code. |
| 4: | endmethod |
| 5: | endclass |
| 6: | class handleB |
| 7: | open method void THandler(dictionary dic) |
| 8: | ... // event handler code. |
| 9: | endmethod |
| 10: | endclass |
Usage of the Handler setter is as follows.
| 1: | handleA ha = new handleA(); |
| 2: | handleB hb = new handleB(); |
| 3: | timer tim = new timer(ha, "THandler(dictionary)", 1000); // It sets the instance of the handleA class. |
| 4: | tim.Handler = hb; // It changes the instance to the handleB class. |
In the above code, Handler instances are different class, but these have the method with same signature, so it works fine.
Notes
None
Links for reference
None