Error on query execution

Hi, ALL,
[code]
type = 80;
uint32_t binaryIntVal;
const char *paramValues[1];
int paramLengths[1];
int paramFormats[1];
binaryIntVal = htonl( (uint32_t) type );
paramValues[0] = (char *) &binaryIntVal;
paramLengths[0] = sizeof( binaryIntVal );
paramFormats[0] = 1;
res = PQexecParams( m_db, "SELECT * FROM abcatfmt WHERE abf_type =
$1", 1, nullptr, paramValues, paramLengths, paramFormats, 1 );
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
std::wstring err = m_pimpl->m_myconv.from_bytes(
PQerrorMessage( m_db ) );
errorMsg.push_back( L"Error executing query: " + err );
result = 1;
}
[/code]

Running the above I'm getting:

[quote]
(gdb) p err
$1 = L"ERROR: incorrect binary data format in bind parameter 1\n"
[/quote]

What is wrong and how do I fix it?

Thank you.