Your window procedure is the event handler.
窗口过程就是事件处理器。
The message will be dispatched to the window's procedure on window creation thread, that is on STA thread and the message handler would be a safe place to fire COM event from.
该消息将被派遣到在窗口创建线程窗口的程序，即在STA线程和消息处理程序将火COM事件从安全的地方。
Instead, you identify the procedure as a handler for the event.
相反，将此过程标识为事件的处理程序。
An event handler is a procedure, but the event itself is a signaling device, which must be raised and handled.
事件处理常式是一个程序，但是事件本身则是必须引发和处理的信号装置。
An event handler is a procedure in your code that determines what actions are performed when an event occurs, such as when the user clicks a button or a message queue receives a message.
事件处理常式是程序码中的程序，它会决定当事件发生时所要执行的动作，例如，当使用者按一下按钮时，或是当讯息伫列收到讯息时。
In your application design, you may find it necessary to use a single event handler for multiple events or have multiple events perform the same procedure.
设计应用程序时，您可能会发现多个事件必须使用同一个事件处理常式，或是多个事件会执行相同的程序。
In your application design, you may find it necessary to use a single event handler for multiple events or have multiple events perform the same procedure.
设计应用程序时，您可能会发现多个事件必须使用同一个事件处理常式，或是多个事件会执行相同的程序。
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