The system maintains an internal list that contains the child controls associated with a parent window.
系统维护包含与父窗口关联的子控件的内部列表。
For example, you may want to remove the steps that show a step was completed or that the parent window was changed.
例如，您可能要移除显示步骤已完成或父视窗已变更的步骤。
In Windows and in MFC prior to version 4.0, the parent window, often a dialog box, is responsible for handling these messages.
在Windows和MFC4.0以前的版本中，父窗口——通常是一个对话框，会来响应处理这些消息。
Gets or sets the window handle that should be used as the parent window for dialog boxes that are created by Cryptography Next Generation (CNG) classes.
获取或设置窗口句柄，该句柄应用作由下一代加密技术(CNG)类创建的对话框的父窗口的句柄。
Any drawing to a window that has the WS_VISIBLE style will not be displayed if the window is covered by other Windows or is clipped by its parent window.
当窗口被其它窗口覆盖或被父窗口裁剪时，在具有WS _ VISIBLE风格位的窗口内的绘图将不会显示。
At the time of the HCBT_CREATEWND notification, the window has been created, but its final size and position may not have been determined and its parent window may not have been established.
在HCBT_CREATEWND通知的时候，窗体已经被创建了，但是它的最终的大小和位置可能还没有被确定，它的父窗体也可能没有被创建起来。
The behavior of the child window is not dependent on the behavior of the parent window; either window can cover the other, or be minimized, maximized, and restored independently of the other.
子视窗的行为不取决于父视窗的行为，这两个视窗可以彼此盖到，或是独自最小化、最大化和还原。
The EN_SETFOCUS notification message is sent when an edit control receives the keyboard focus. The parent window of the edit control receives this notification message through a WM_COMMAND message.
当编辑框获得键盘焦点时（即编辑框由无光标变成有光标在闪烁时），父窗口收到这一消息。
The EN_SETFOCUS notification message is sent when an edit control receives the keyboard focus. The parent window of the edit control receives this notification message through a WM_COMMAND message.
当编辑框获得键盘焦点时（即编辑框由无光标变成有光标在闪烁时），父窗口收到这一消息。
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