GetActiveAppInfo
status_t GetActiveAppInfo(app_info *info) const;
status_t GetActiveAppInfo(app_info* info) const;
if (be_roster->GetActiveAppInfo(&appInfo) == B_OK
be_roster->GetActiveAppInfo(&appInfo);
status_t status = be_roster->GetActiveAppInfo(&appInfo);
status_t status = be_roster->GetActiveAppInfo(&appInfo);
strerror(be_roster->GetActiveAppInfo(&trackerInfo)),