QString echo(const QString &message) { qimsysDebugIn() << message; QString ret = message; ... qimsysDebug() << "hoge"; ... qimsysDebugOut() << ret; return ret; }
To make put them out,
int main(int argc, char **argv) { qimsysDebugOn(); QString ret = message; ... echo("hoge"); ... qimsysDebugOff(); return 0; }