ChildWindowFromPointEx function user32

int ChildWindowFromPointEx(
  1. int hwnd,
  2. POINT pt,
  3. int flags

Determines which, if any, of the child windows belonging to the specified parent window contains the specified point. The function can ignore invisible, disabled, and transparent child windows. Grandchildren and deeper descendants are not searched.

HWND ChildWindowFromPointEx(
  HWND  hwnd,
  POINT pt,
  UINT  flags


int ChildWindowFromPointEx(int hwnd, POINT pt, int flags) =>
    _ChildWindowFromPointEx(hwnd, pt, flags);