FindWindow

The FindWindow function retrieves a handle to the top-level window whose class name and window name match the specified strings. This function does not search child windows. This function does not perform a case-sensitive search.

HWND FindWindow(
  LPCTSTR lpClassName,  // pointer to class name
  LPCTSTR lpWindowName  // pointer to window name
);
 

Parameters

lpClassName

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

Pointer to a null-terminated string that specifies the window name (the window's title). If this parameter is NULL, all window names match.

Return Values

If the function succeeds, the return value is a handle to the window that has the specified class name and window name.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

Remarks

Windows CE: If lpClassName is an atom, it must be an atom returned from RegisterClass.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in winuser.h.
  Import Library: Use user32.lib.
  Unicode: Implemented as Unicode and ANSI versions on Windows NT.

See Also

Windows Overview, Window Functions, EnumWindows, FindWindowEx, GetClassName, GlobalAddAtom