Canonicalizes a URL, which includes
converting unsafe characters and spaces into escape sequences.
integer value that contains the flags that control
canonicalization. This can be one of the following values:
| ICU_BROWSER_MODE | Does not encode or decode characters after "#" or "?", and does not remove trailing white space after "?". If this value is not specified, the entire URL is encoded and trailing white space is removed. |
| ICU_DECODE | Converts all %XX sequences to characters, including escape sequences, before the URL is parsed. |
| ICU_ENCODE_PERCENT | Encodes any percent signs encountered. By default, percent signs are not encoded. This value is available in Microsoft� Internet Explorer 5 and later versions of the Win32� Internet functions. |
| ICU_ENCODE_SPACES_ONLY | Encodes spaces only. |
| ICU_NO_ENCODE | Does not convert unsafe characters to escape sequences. |
| ICU_NO_META | Does not remove meta sequences (such as "." and "..") from the URL.
If no flags are specified (dwFlags = 0), the function converts all unsafe characters and meta sequences (such as .,\\ .., and ...) to escape sequences. |