WideStudio/MWT Home page

WideStudio Application Builder User's Guide

What is the Event procedure?

The event procedure is used to do something when an event is fired, in order to do a complicated task which is too difficult to realize within the object. You can code an event procedure with usual knowledge of the C++ language.

It has a trigger and a client instance, and is executed when the trigger is fired on the client. See the Programming Guide. The following shows what the event procedure has.

Name

An instance has many event procedures, so they have their names to identify them.
C++ function

The event procedure has a function which is coded in the c++ language. The function is executed if the event is fired.
Trigger

The event procedure waits for the event on the client instance. If the event is fired, it executes its function.

[The event procedure]

The function for the event procedures

The function has one parameter in which a pointer to the client object is passed. The following function is a template generated by the application.


#include <WScom.h>
#include <WSCfunctionList.h>
#include <WSCbase.h>

//----------------------------------------------------------
//Function for the event procedure
//----------------------------------------------------------
void sample(WSCbase* object){
  //do something...

}
static WSCfunctionRegister  op("sample",(void*)sample);

WideStudio documents index | Table of contents

Please feel free to contact us for any questions/bugs after checking the mailing list