In the UI device based on MFC one dialog often has lots of child dialogs, so we need transfer correctly inputted data in the main dialog to its every child one.

• 在基于MFC的用户界面设计中,一个对话框常常拥有多个子对话框,这时就需要把主对话框中用户输入的数据正确地传递到该对话框的每个子对话框中去。