控件重疊 關於WS_CLIPCHILDREN和WS_CLIPSIBLINGS的理解（個人認爲還是相當全面的）

WS_CLIPCHILDREN樣式從字面上可以理解成ClipChildren，裁減子窗口。 MSDN裏的E文解釋：Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window. 讀

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