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Library: User32

Min. Required OS: Windows NT 3.1 or later; Windows 95 or later

Group: Window

Description: The IsChild function tests whether a window is a child window or descendant window of a specified parent window. A child window is the direct descendant of a specified parent window if that parent window is in the chain of parent windows; the chain of parent windows leads from the original overlapped or pop-up window to the child window.


Related function(s):
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