IsChild function (winuser.h)
Determines 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.
Syntax
BOOL IsChild(
[in] HWND hWndParent,
[in] HWND hWnd
);
Parameters
[in] hWndParent
Type: HWND
A handle to the parent window.
[in] hWnd
Type: HWND
A handle to the window to be tested.
Return value
Type: BOOL
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | winuser.h (include Windows.h) |
| Library | User32.lib |
| DLL | User32.dll |
| API set | ext-ms-win-ntuser-window-l1-1-0 (introduced in Windows 8) |
See also
Conceptual
Reference