( resource pxdoc, string encoding )
Set the encoding for data retrieved from a character field. All character
fields will be recoded to the encoding set by this function. If the
encoding is not set, the character data will be returned in the DOS code
page encoding as specified in the database.
See also px_get_info() to determine the DOS code page.
Returns FALSE if the encoding could not be set, e.g. the encoding is
unknown, or pxlib does not support recoding at all. In the second case a
warning will be issued.