Using problems MS Winsock Control In CVI

[jecki]

Hi.

I'm have problems using MS Winsock Control(ver 6.0) in CVI

When data send to another system, I set to 'variant' type from variable or array.

And send to another system.

problems is..

Set to variant type from variable(int, double, float...) is a good. (no problem)

But 1D array(int i[10], double d[10]...) is a bed. (problem)

my code is..

1. variable(no problem)

int  i=10;

CA_VariantSetInt (&varData, 10);

MSWinsockLib_IMSWinsockControlSendData (hSocket, NULL, varData);

2. 1D array(problem)

int  ia[10]={1,2,3,4,5,6,7,8,9,10};

CA_VariantSet1DArray (&varData, CAVT_INT, 10, ia); 

MSWinsockLib_IMSWinsockControlSendData (hSocket, NULL, varData);

Answer me. please.

Sorry..my english is not good.^^;

Best regard!

[sarahk]

Hi, jecki.

Can you tell me a little more about what happens when you call MSWinsockLib_IMSWinsockControlSendData ()? I don't really understand what is going wrong.

Have a nice evening!

[jecki]

Hi Sarah.

1. variable(no problem)

int  i=10;

CA_VariantSetInt (&varData, 10);

MSWinsockLib_IMSWinsockControlSendData (hSocket, NULL, varData);

This(1) case a confirm to 'Data Arrival Event' commit to receiver system.

And, receiver system can get data.

2. 1D array(problem)

int  ia[10]={1,2,3,4,5,6,7,8,9,10};

CA_VariantSet1DArray (&varData, CAVT_INT, 10, ia); 

MSWinsockLib_IMSWinsockControlSendData (hSocket, NULL, varData);

This(2) case a not confirm to 'Dara Arrival Event' commit to receiver system.

And, receiver system can't get data.

regards.

Jecki.

[sarahk]

Hi, Jecki.

Those ActiveX wrappers can often be difficult to use; I recommend instead using some of the methods in the TCP or Datasocket libraries. (You can find them in the lower-left panel of CVI -- see screenshot.)




There are several examples of both of these libraries in the Example Finder. You can access them all by selecting Help>>Find Examples and then selecting Networking>>TCP or Networking>>Datasocket. The TCP examples MessageReader and MessageWriter are particularly nice and simple examples.

Let me know if you continue to have problems. Have a nice evening!

Message Edited by sarahk on 07-27-2006 07:15 PM