Object::Send

Section: ET++ method description (n)
Updated: automatically Fri Mar 1 10:54:57 1991
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NAME

Object::Send - instance method

TEMPLATE

void Send(int objectId = -1, int partCode = cPartAnyChange, void * value = 0)

SPECIFIERS

public virtual

DESCRIPTION

Sends the change message described by the arguments to all observers of the receiver. Eventually, the method DoObserve operation of the observers is invoked, so they can appropriately react.
See also method Changed.
The class EvtHandler overrides this method to additionally forward the change message to the next handler. The next handler handles the change message in method Control!. Thus, Control is another, more specific mean to distribute change messages.
Examples: method VObject::SetOrigin, method VObject::SetExtent. Method is rarely overridden.

ARGUMENTS

int objectId = -1: the id of the object which has changed or const cIdNone. The current implementation literally uses -1 as default argument instead of const cIdNone. This is a (minor) bug which will be fixed in future versions.
int partCode = cPartAnyChange: a code that describes what aspect of the observed object has changed. Usually, the constants defining the part code values have names of the form cPart....
void * value = 0: an argument whose actual type and semantics depends on the values of objectId and partCode.

RETURN ARGUMENT

void

FIRST DEFINITION

class Object

FILES

implementation:: Object.C

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Time: 00:40:25 GMT, March 30, 2022