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Builder:I can't dinamically load winsock.dll

Posted on 1998-03-05
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Last Modified: 2008-02-01
I'm trying to implement a tcpip cliente with winsock.dll, because i need binary comunication
with a server. But  the LoadLibrary("winsock.dll") fails.

How can i load the library?
i tried with others, "twain.dll" fails too, but "NViewlib.dll" works fine.

Sorry, I haven't explain it enought,
The library winsock.dll is in the windows directory, and the error that returns
GetLastError is number 31. It says that a device in the system does'n works ??
I have the TCP/IP installed, and it works!



DllInstance=LoadLibrary("WINSOCK.DLL");
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Question by:ineila
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9 Comments
 
LVL 22

Expert Comment

by:nietod
ID: 1183068
Where is winsock.dl?  You must specify a path to it or it must be in the windows directory or in the dirrectory with your app.

What is the error code returned by GetLastError()?
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Author Comment

by:ineila
ID: 1183069
Edited text of question
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LVL 23

Accepted Solution

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chensu earned 30 total points
ID: 1183070
Use Wsock32.dll instead. Winsock.dll seems to be used by 16-bit applications running on 32-bit Windows even though it is a 32-bit dll.

By the way, twain.dll is definitely 16-bit while twain_32.dll is 32-bit.
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Author Comment

by:ineila
ID: 1183071
It seems to works fine in my windows NT, but GetLastError returns 120 in my
Windows 95, it says the function only works in Win32 ?? It isn't an error not?


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LVL 23

Expert Comment

by:chensu
ID: 1183072
After which function, GetLastError returns 120?
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Author Comment

by:ineila
ID: 1183073
After function LoadLibrary("wsock32.dll").
And, working with my NT, when i try to import function socket, it says denied access.
With the function connect, recv, etc, it says can't find resource. ??

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LVL 23

Expert Comment

by:chensu
ID: 1183074
I tried it on my Windows 95. LoadLibrary("wsock32.dll") succeeded and returned a non-NULL handle. Check your system.
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Author Comment

by:ineila
ID: 1183075
Ok. I checked my system.. but my error was that i didn't initialize the windows sockets
subsystem, with WSAStartup()!

Thank you.


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Expert Comment

by:socketman
ID: 3179996
You would save yourself a lot of trouble if you just go and get a commercial Winsock VCL.

I use IP*Works! from http://www.dev-soft.com/  -  it's native VCLs, and they have a free trial.
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