void VCSAgStartup();

Note that the name of the C++ function must be VCSAgStartup().

For example:

// This example shows the VCSAgStartup() function
// implementation,assuming that the monitor, online, offline
// and clean entry points are implemented in C++ and the
// respective function names are res_monitor, res_online,
// res_offline, and res_clean.

#include "VCSAgApi.h"
void VCSAgStartup()
{
    VCSAG_LOG_INIT("VCSAgStartup");

    VCSAgSetLogCategory(10051);
    VCSAgInitEntryPointStruct(V51);

    VCSAgValidateAndSetEntryPoint(VCSAgEPMonitor, res_monitor);
    VCSAgValidateAndSetEntryPoint(VCSAgEPOnline, res_online);
    VCSAgValidateAndSetEntryPoint(VCSAgEPOffline, res_offline);
    VCSAgValidateAndSetEntryPoint(VCSAgEPClean, res_clean);
}


VCSAgResState res_monitor(const char *res_name, void
                                     **attr_val, int
*conf_level) {
...
}

unsigned int res_online(const char *res_name,
                                   void **attr_val) {
...
}
unsigned int res_offline(const char *res_name,
                                    void **attr_val) {
...
}
unsigned int res_clean(const char *res_name,
VCSAgWhyClean reason, void **attr_val) {
...
}