FindWindow
The FindWindow function retrieves the handle to the top-level window whose class name and window name match the specified strings. This function does not search child windows.
HWND FindWindow(
LPCTSTR lpClassName,
LPCTSTR lpWindowName );
Parameters
lpClassName
Long pointer to a null-terminated string that specifies the class name or is an atom that identifies the class-name string. If this parameter is an atom, it must be a global atom created by a previous call to the GlobalAddAtom function. The atom, a 16-bit value, must be placed in the low-order word of lpClassName; the high-order word must be zero.
lpWindowName
Long pointer to a null-terminated string that specifies the window name (the window’s title). If this parameter is NULL, all window names match.