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.
BOOL IsChild(
| HWND hWndParent, | // handle of parent window |
| HWND hWnd | // handle of window to test |
| ); |
Parameters
hWndParent
Identifies the parent window.
hWnd
Identifies the window to be tested.
Return Values
If the window is a child or descendant window of the specified parent window, the return value is nonzero.
If the window is not a child or descendant window of the specified parent window, the return value is zero.
See Also