FGX.Messaging.TfgMessageSender: различия между версиями
Перейти к навигации
Перейти к поиску
Admin (обсуждение | вклад) (summary) |
Admin (обсуждение | вклад) (summary) |
||
Строка 14: | Строка 14: | ||
<p>Class to allow sending message notifications to a TObject <i>Receiver</i> .</p> | <p>Class to allow sending message notifications to a TObject <i>Receiver</i> .</p> | ||
− | |||
== Методы == | == Методы == | ||
Версия 02:51, 1 июля 2019
Delphi
TfgMessageSender = class (TfgPersistent)
TPersistent -> TfgPersistent -> TfgMessageSender
Прямые наследники: TfgNativeControlHandle
Описание
Class to allow sending message notifications to a TObject Receiver .
Методы
function
|
HasReceiver(): Boolean
Returns whether TMessageSender has a Receiver or not. |
procedure
|
SendMessage(const AMessageID: Word)
Sends a message to an object. |
procedure
|
SendMessage(const AMessageID: Word; const AValue: T)
Sends a message with value to an object. |
procedure
|
SendMessageWithResult(const AMessageID: Word; var AValue: T)
Sends a message with value to an object and allows to get result from Receiver . |
procedure
|
DisableNotify()
Disables TMessageSender from sending messages. |
procedure
|
EnableNotify()
Enables TMessageSender to send messages. Use CanNotify to check whether TMessageSender can send messages. The model reads quantity of calls of DisableNotify . So all calls of DisableNotify and EnableNotify shall be pairs.
|
function
|
CanNotify(): Boolean
Returns whether TMessageSender can send messages. |
Свойства
property
|
Receiver: TObject
Returns the object that receives the message. |