The return to the event handler
is indicated by execution of the instruction retesr (return from the event service routine), which causes activation of the ret_esr, indicating to the P[C.sub.i] to load the return address of BackUp_PC register, continuing the normal execution of the program.
This rule forbids inline <script> tags and inline event handlers
(e.g., handler for a button's onClick event).
This gets you an event handler
macro that will run every time any pivot table on the sheet is updated.
The End Access Event handler
is only generated by the master-side interface modules.
* Event Handler
: The Event Handler
translates the event to a command and then performs the corresponding action.
Notice how we are using the information passed from the "onclick" event handler
. When a user clicks on the link from our XHTML page the createRequest function begins and uses "xml/worldcat.xml" as the value for the "url" variable.
State transitions are implemented through a mechanism of events and event handlers
, completing the finite state machine.
During normal operation, a system frequently reaches states in its execution where an event handler
could be invoked with minimal overhead.
For the event handler
, your programming in the Block editor will look like the example inset below.
Such semantics can simplify microprotocol code in certain cases when execution order is important, such as when a subsequent event handler
depends on a side effect caused by a previously executed handler.
This pattern simplifies event-driven applications by decoupling event demultiplexing and event handler
dispatching from application services performed in response to events.
While you can't use the macro recorder to solve this problem, you'll be typing a tiny bit of VBA code to create something called an Event Handler
. In our particular case, we'll create a macro that will run every time a value is typed in Sheet1 of our workbook.