Difference between revisions of "Bindevents Method"
From Lianjapedia
(Created page with '{{Common Method}} Category:Methods Category:Common Methods') |
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| + | Defines a delegate procedure of a handler object to handle an event for an object. | ||
| + | |||
| + | <pre> | ||
| + | ob.bindevents(oSource, cEvent, oHandler, cProc [, nFlags]) | ||
| + | </pre> | ||
| + | |||
| + | ==Arguments== | ||
| + | |||
| + | {|class="wikitable" | ||
| + | !Argument||Type||Description | ||
| + | |- | ||
| + | |oSource||O||Source object | ||
| + | |- | ||
| + | |cEvent||C||Source event name | ||
| + | |- | ||
| + | |oHandler||O||Handler object | ||
| + | |- | ||
| + | |cProc||C||Handler delegate procedure name | ||
| + | |- | ||
| + | |nFlags||N||Flags (ignored) | ||
| + | |} | ||
| + | |||
| + | |||
| + | ==Example== | ||
| + | <code lang="recital"> | ||
| + | // | ||
| + | // Lianja custom section for page "page1" section "section1" | ||
| + | // | ||
| + | namespace custom1 | ||
| + | public eventhandlerob, sourceclassbutton | ||
| + | define class page1_section1 as section | ||
| + | enddefine | ||
| + | |||
| + | define class eventhandlerclass as CommandButton | ||
| + | proc delegateproc | ||
| + | messagebox("Hello from the event handler",0,"Event Handler") | ||
| + | // Reset event binding for sourceclassbutton.click | ||
| + | sourceclassbutton.unbindevents(sourceclassbutton,"click",; | ||
| + | eventhandlerob,"delegateproc") | ||
| + | endproc | ||
| + | enddefine | ||
| + | |||
| + | define class sourceclass as CommandButton | ||
| + | enddefine | ||
| + | |||
| + | proc page1_section1 | ||
| + | page1_section1 = createobject("page1_section1") | ||
| + | |||
| + | page1_section1.addobject("eventhandlerob","eventhandlerclass") | ||
| + | eventhandlerob.visible = False | ||
| + | |||
| + | page1_section1.addobject("sourceclassbutton","sourceclass") | ||
| + | sourceclassbutton.caption = "Delegate Click Event" | ||
| + | sourceclassbutton.bindevents(sourceclassbutton,"click",eventhandlerob,"delegateproc") | ||
| + | return page1_section1 | ||
| + | </code> | ||
[[Category:Methods]] | [[Category:Methods]] | ||
[[Category:Common Methods]] | [[Category:Common Methods]] | ||
Revision as of 06:25, 29 September 2011
Defines a delegate procedure of a handler object to handle an event for an object.
ob.bindevents(oSource, cEvent, oHandler, cProc [, nFlags])
Arguments
| Argument | Type | Description |
|---|---|---|
| oSource | O | Source object |
| cEvent | C | Source event name |
| oHandler | O | Handler object |
| cProc | C | Handler delegate procedure name |
| nFlags | N | Flags (ignored) |
Example
// // Lianja custom section for page "page1" section "section1" // namespace custom1 public eventhandlerob, sourceclassbutton define class page1_section1 as section enddefine define class eventhandlerclass as CommandButton proc delegateproc messagebox("Hello from the event handler",0,"Event Handler") // Reset event binding for sourceclassbutton.click sourceclassbutton.unbindevents(sourceclassbutton,"click",; eventhandlerob,"delegateproc") endproc enddefine define class sourceclass as CommandButton enddefine proc page1_section1 page1_section1 = createobject("page1_section1") page1_section1.addobject("eventhandlerob","eventhandlerclass") eventhandlerob.visible = False page1_section1.addobject("sourceclassbutton","sourceclass") sourceclassbutton.caption = "Delegate Click Event" sourceclassbutton.bindevents(sourceclassbutton,"click",eventhandlerob,"delegateproc") return page1_section1
