You cannot call a case statement.
However, you can let it fall through.
case Execute_Button:
case INPUT_FIELD:
if (HIWORD(wParam) == EN_MAXTEXT) {
char cText[INPUT_CHAR_LIMIT];
SendMessage((HWND)lParam, WM_GETTEXT, INPUT_CHAR_LIMIT, (LPARAM)cText);
if (strcmp(cText, "") == 0)
break;
SendMessage((HWND)lParam, WM_SETTEXT, NULL, (LPARAM)"");
HandleCommand(cText);
}
break;
}
break