ChatMessageStore.MessageChanged 事件

定义

命名空间:

Windows.ApplicationModel.Chat

消息存储区中的消息发生更改时发生的事件。

// Register
event_token MessageChanged(TypedEventHandler<ChatMessageStore, ChatMessageChangedEventArgs const&> const& handler) const;

// Revoke with event_token
void MessageChanged(event_token const* cookie) const;

// Revoke with event_revoker
ChatMessageStore::MessageChanged_revoker MessageChanged(auto_revoke_t, TypedEventHandler<ChatMessageStore, ChatMessageChangedEventArgs const&> const& handler) const;

public event TypedEventHandler<ChatMessageStore,ChatMessageChangedEventArgs> MessageChanged;

function onMessageChanged(eventArgs) { /* Your code */ }
chatMessageStore.addEventListener("messagechanged", onMessageChanged);
chatMessageStore.removeEventListener("messagechanged", onMessageChanged);
- or -
chatMessageStore.onmessagechanged = onMessageChanged;

Public Custom Event MessageChanged As TypedEventHandler(Of ChatMessageStore, ChatMessageChangedEventArgs) 

事件类型

TypedEventHandler<ChatMessageStore,ChatMessageChangedEventArgs>

Windows 要求

应用功能	chat blockedChatMessages chatSystem smsSend

注解

以下简单示例演示如何声明和启用对消息更改的更改跟踪。

void ChatMessageStore_MessageChanged(ChatMessageStore store, ChatMessageChangedEventArgs changeArgs)
{
    // Act on the event…
}

void SetStoreProperties(ChatMessageStore store)
{
    store.MessageChanged += ChatMessageStore_MessageChanged;
    store.ChangeTracker.Enable();
}