EN_SETFOCUS  16LK.KV 

The EN_SETFOCUS notification message is sent when an edit control receives the keyboard focus. The parent window of the edit control receives this notification message through the WM_COMMAND message.

EN_SETFOCUS

idEditCtrl = (int) LOWORD(wParam); // identifier of edit control

wNotifyCode = HIWORD(wParam);      // notification code

hwndEditCtrl = (HWND) lParam;      // handle of edit control

Remarks

In previous versions of Windows, the notification code was in HIWORD(lParam).

See Also