Writing your first C++ TANGO client
Intended audience: beginer developers, Programming language: c++
The quickest way of getting started is by studying this example :
1 /*
2 * example of a client using the TANGO C++ api.
3 */
4 #include <tango.h>
5 using namespace Tango;
6 int main(unsigned int argc, char **argv)
7 {
8 try
9 {
10
11 //
12 // create a connection to a TANGO device
13 //
14
15 DeviceProxy *device = new DeviceProxy("sys/database/2");
16
17 //
18 // Ping the device
19 //
20
21 device->ping();
22
23 //
24 // Execute a command on the device and extract the reply as a string
25 //
26
27 string db_info;
28 DeviceData cmd_reply;
29 cmd_reply = device->command_inout("DbInfo");
30 cmd_reply >> db_info;
31 cout << "Command reply " << db_info << endl;
32
33 //
34 // Read a device attribute (string data type)
35 //
36
37 string spr;
38 DeviceAttribute att_reply;
39 att_reply = device->read_attribute("StoredProcedureRelease");
40 att_reply >> spr;
41 cout << "Database device stored procedure release: " << spr << endl;
42 }
43 catch (DevFailed &e)
44 {
45 Except::print_exception(e);
46 exit(-1);
47 }
48 }
Modify this example to fit your device server or client’s needs, compile it and link with the library -ltango. Forget about those painful early TANGO days when you had to learn CORBA and manipulate Any’s. Life’s going to easy and fun from now on !