Appends len bytes of val to string.
If len is positive, val may contain embedded nuls and need not be nul-terminated. It is the caller's responsibility to ensure that val has at least len addressable bytes.
If len is negative, val must be nul-terminated and len is considered to request the entire string length. This makes glib.string_.String.appendLen equivalent to glib.string_.String.append.
bytes to append
number of bytes of val to use, or -1 for all of val
string
Appends len bytes of val to string.
If len is positive, val may contain embedded nuls and need not be nul-terminated. It is the caller's responsibility to ensure that val has at least len addressable bytes.
If len is negative, val must be nul-terminated and len is considered to request the entire string length. This makes glib.string_.String.appendLen equivalent to glib.string_.String.append.