>>>How can I pass multiple values to a win32api from Visual FoxPro?
>>>
>>>Basically I need to fill this structure prior of calling the bind function.
>>>
>>> struct sockaddr {
>>> u_short sa_family;
>>> char sa_data[14];
>>> };
>>>
>>> int bind (
>>> SOCKET s,
>>> const struct sockaddr FAR * addr,
>>> int namelen
>>> );
>>>
>>>Thanks in advance for your help.
>>
>>Simon,
>>
>>Concatenate the values into a single string, then in the declaration, declare it string passed by reference.
>>
>>hth,
>>
>>George
>I already tried that and it didn't work.
>
>sa_family = alltrim(STR(AF_INET))
>sa_data = "129.110.200.92"
>LPaddr = sa_family+chr(0)+ sa_data+chr(0)

The problem may very well be in the definition of sa_family. My C's pretty rusty so if I miss here, please understand. It looks as if the data type is an unsigned short. In order to properly assign that value to a string, you need something like:

lcresult = ""
lnmask = 255
lnvalue = AF_NET
lnbytes = 2
FOR lni = 1 TO lnbytes
lnchar = BITAND(lnvalue, lnmask)
lcresult = lcresult + CHR(lnchar)
lnvalue = BITRSHIFT(lnvalue, 8)
NEXT


lcresult with have the proper value when the loop exits. Concatenate that with your IP address. I do know of one instance where trying to pass a string for a structure doesn't work, but that's with the FoxPro API routines in FOXTOOLS, not Win32API.

hth,

George