function utf16_to_ucs4(str: Number(guint16), len: Number(glong), items_read: Number(glong), items_written: Number(glong)): String {
    // Gjs wrapper for g_utf16_to_ucs4()

Convert a string from UTF-16 to UCS-4. The result will be nul-terminated.


a UTF-16 encoded string


the maximum length (number of #gunichar2) of str to use. If len < 0, then the string is nul-terminated.


location to store number of words read, or null. If null, then GLib.ConvertError.partial_input will be returned in case str contains a trailing partial character. If an error occurs then the index of the invalid input is stored here.


location to store number of characters written, or null. The value stored here does not include the trailing 0 character.


a pointer to a newly allocated UCS-4 string. This value must be freed with If an error occurs, null will be returned and @error set.