You can use this return value to determine how to process the actions that occurred in the dialog box 可以使用此返回值确定如何处理对话框中发生的操作。
This method is called during message preprocessing to handle dialog characters , such as control mnemonics . this method is called only if the 此方法在消息预处理过程中调用，以处理对话框字符，比如控件助记键。
This method is called during message preprocessing to handle dialog characters , such as tab , return , escape , and arrow keys 在消息预处理过程中调用此方法，以处理对话框字符，比如tab 、 return 、 esc和箭头键。只有当
A common way to process the information returned from a dialog box is to provide a set of properties that return individual elements of dialog box data 处理对话框返回的信息的通用方法是提供一组返回对话框数据的单个元素的属性。
