UpdateData(TRUE)和UpdateData(FALSE)的区别



当你使用了ClassWizard建立了控件和变量之间的联系后：当你修改了变量的值，而希望对话框控件更新显示，就应该在修改变量后调用UpdateData(FALSE)；如果你希望知道用户在对话框中到底输入了什么，就应该在访问变量前调用UpdateData(TRUE)。

-The difference between the UpdateData (TRUE) and UpdateData (FALSE)



When you use ClassWizard to establish the link between the controls and variables: when you modify the value of a variable, while the dialog box controls to update the display, you should call UpdateData (FALSE)　modify variables if you want to know the user dialog in the end what is entered, you should call UpdateData (TRUE) in front of the access variable.