Control.PreProcessControlMessage(Message) 方法

定义

命名空间:
System.Windows.Forms
程序集:
System.Windows.Forms.dll

在调度键盘或输入消息之前，在消息循环内对它们进行预处理。Preprocesses keyboard or input messages within the message loop before they are dispatched.

public:
 System::Windows::Forms::PreProcessControlState PreProcessControlMessage(System::Windows::Forms::Message % msg);
public System.Windows.Forms.PreProcessControlState PreProcessControlMessage (ref System.Windows.Forms.Message msg);
member this.PreProcessControlMessage : Message -> System.Windows.Forms.PreProcessControlState
Public Function PreProcessControlMessage (ByRef msg As Message) As PreProcessControlState

参数

msg
Message

一个 Message，表示要处理的消息。A Message that represents the message to process.

返回

PreProcessControlState

PreProcessControlState 值之一，具体取决于 PreProcessMessage(Message) 是 true 还是 false，以及 IsInputKey(Keys) 或 IsInputChar(Char) 是 true 还是 false。One of the PreProcessControlState values, depending on whether PreProcessMessage(Message) is true or false and whether IsInputKey(Keys) or IsInputChar(Char) are true or false.

适用于