askwilbur.cpp

linux下用qt编写的进程间通信程序

/* askwilbur.cpp */
#include <kapp.h>
#include <qcstring.h>
#include <dcopclient.h>

int main(int argc,char **argv)
{
    KApplication app(argc,argv,"askwilbur");

    DCOPClient *client = app.dcopClient();
    QCString dcopID = client->registerAs(app.name());

    QByteArray params;
    QByteArray reply;
    QCString replyType;
    QDataStream stream(params,IO_WriteOnly);
    stream << (double)888.0;
    if(!client->call("wilbur","wilreceiver",
            "cubeRoot(double)",params,
            replyType,reply)) {
        qDebug("Well, that didn't work!");
    } else {
        QDataStream inStream(reply,IO_ReadOnly);
        if(replyType == "double") {
            double root;
            inStream >> root;
            QString str;
            str.sprintf("The return value is %g",root);
            qDebug(str);
        }
    }

    client->detach();
    return(0);
}