FGX.Messaging.TfgMessageSender: различия между версиями
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| (не показано 28 промежуточных версий этого же участника) | |||
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| − | * [[ FGX. | + | * [[ FGX.Types.TfgPersistent | Вверх к родителю: TfgPersistent ]] |
| + | * [[ FGX.Messaging | К модулю: FGX.Messaging ]] | ||
Delphi | Delphi | ||
| − | < | + | <syntaxhighlight lang="Delphi">TfgMessageSender = class (TfgPersistent)</syntaxhighlight> |
| + | |||
| + | <p class="class-inheritance"><span class="type-border">[[System.Classes.TPersistent|TPersistent]]</span> -> <span class="type-border">[[FGX.Types.TfgPersistent|TfgPersistent]]</span> -> <span class="type-border">[[FGX.Messaging.TfgMessageSender|TfgMessageSender]]</span></p> | ||
| + | |||
| + | Прямые наследники: | ||
| + | [[FGX.Controls.Factory.TfgNativeControlHandle|TfgNativeControlHandle]] | ||
== Описание == | == Описание == | ||
| − | Class to allow sending message notifications to a TObject | + | <p>Class to allow sending message notifications to a TObject <i>Receiver</i> .</p> |
| + | == Методы == | ||
| + | |||
| + | {| class="wikitable sortable" | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">function</syntaxhighlight> || <code lang="Delphi">HasReceiver(): [[Boolean]]</code> | ||
| + | <p>Returns whether <i>TMessageSender</i> has a Receiver or not.</p> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">procedure</syntaxhighlight> || <code lang="Delphi">SendMessage(const AMessageID: [[Word]])</code> | ||
| + | <p>Sends a message to an object.</p> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">procedure</syntaxhighlight> || <code lang="Delphi">SendMessage(const AMessageID: [[Word]]; const AValue: [[T]])</code> | ||
| + | <p>Sends a message with value to an object.</p> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">procedure</syntaxhighlight> || <code lang="Delphi">SendMessageWithResult(const AMessageID: [[Word]]; var AValue: [[T]])</code> | ||
| + | <p>Sends a message with value to an object and allows to get result from <i>Receiver</i> .</p> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">procedure</syntaxhighlight> || <code lang="Delphi">DisableNotify()</code> | ||
| + | <p>Disables <i>TMessageSender</i> from sending messages.</p> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">procedure</syntaxhighlight> || <code lang="Delphi">EnableNotify()</code> | ||
| + | |||
| + | <p>Enables <i>TMessageSender</i> to send messages. Use CanNotify to check whether TMessageSender can send messages.</p><div class="info">The model reads quantity of calls of <i>DisableNotify</i> . So all calls of <i>DisableNotify</i> and <i>EnableNotify</i> shall be pairs.</div> | ||
| + | |- | ||
| + | | <syntaxhighlight lang="Delphi">function</syntaxhighlight> || <code lang="Delphi">CanNotify(): [[Boolean]]</code> | ||
| + | <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
|
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. |
