All the controls and objects on the surface of the owner application are deactivated for the duration of the modal dialog box. Of course, a user can activate other programs while a modal dialog box is up, but the dialog box will stay there indefinitely.

• 它的所属程序表面所有的控件和对象在模态对话框工作过程中暂停工作，当然在模态对话框打开时用户可以激活其他的程序。