FGX.Messaging.TfgMessageSender: различия между версиями
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Admin (обсуждение | вклад) (summary) |
Admin (обсуждение | вклад) (summary) |
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| (не показано 7 промежуточных версий этого же участника) | |||
| Строка 9: | Строка 9: | ||
Прямые наследники: | Прямые наследники: | ||
| − | [[FGX. | + | [[FGX.Controls.Factory.TfgNativeControlHandle|TfgNativeControlHandle]] |
== Описание == | == Описание == | ||
<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 == | ||
| Строка 40: | Строка 39: | ||
| <syntaxhighlight lang="Delphi">function</syntaxhighlight> || <code lang="Delphi">CanNotify(): [[Boolean]]</code> | | <syntaxhighlight lang="Delphi">function</syntaxhighlight> || <code lang="Delphi">CanNotify(): [[Boolean]]</code> | ||
<p>Returns whether <i>TMessageSender</i> can send messages.</p> | <p>Returns whether <i>TMessageSender</i> can send messages.</p> | ||
| + | |} | ||
| + | |||
| + | == Свойства == | ||
| + | |||
| + | {| class="wikitable sortable" | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">property</syntaxhighlight> || <code>Receiver: [[TObject]]</code> | ||
| + | <p>Returns the object that receives the message.</p> | ||
|} | |} | ||
Текущая версия на 03:59, 19 ноября 2019
Delphi
TfgMessageSender = class (TfgPersistent)
TPersistent -> TfgPersistent -> TfgMessageSender
Прямые наследники: TfgNativeControlHandle
Описание
Class to allow sending message notifications to a TObject Receiver .
Методы
function
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HasReceiver(): Boolean
Returns whether TMessageSender has a Receiver or not. |
procedure
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SendMessage(const AMessageID: Word)
Sends a message to an object. |
procedure
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SendMessage(const AMessageID: Word; const AValue: T)
Sends a message with value to an object. |
procedure
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SendMessageWithResult(const AMessageID: Word; var AValue: T)
Sends a message with value to an object and allows to get result from Receiver . |
procedure
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DisableNotify()
Disables TMessageSender from sending messages. |
procedure
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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.
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function
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CanNotify(): Boolean
Returns whether TMessageSender can send messages. |
Свойства
property
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Receiver: TObject
Returns the object that receives the message. |
