From kde-devel  Tue Aug 20 13:48:58 2002
From: Roland Seuhs <roland () hasos ! com>
Date: Tue, 20 Aug 2002 13:48:58 +0000
To: kde-devel
Subject: How does ksmserver start applications?
X-MARC-Message: https://marc.info/?l=kde-devel&m=102985129803210

Hi!

ksmserver starts applications to restore a session. Unlike kstart, which=20
starts apps on the current desktop and later moves them to another deskto=
p,=20
ksmserver starts those apps seamlessly and without flicker and without=20
stealing focus.

ksmserver does the following:

void KSMServer::startApplication( const QStringList& command )
{
    if ( command.isEmpty() )
        return;
    int n =3D command.count();
    QCString app =3D command[0].latin1();
    QValueList<QCString> argList;
    for ( int i=3D1; i < n; i++)
       argList.append( QCString(command[i].latin1()));

      QByteArray params;
      QDataStream stream(params, IO_WriteOnly);
      stream << app << argList;
      kapp->dcopClient()->send(launcher, launcher,=20
"exec_blind(QCString,QValueList<QCString>)", params);
}


However the complete code is quite complicated and I was unable to figure=
 the=20
mechanism out, especially on which desktop the app ist started. It looks =
like=20
there is a dcop-object which gets an stream(string) of commands and=20
parameters - which format does this string have?

It would help me a lot if somebody could post a small code snipplet that =
uses=20
ksmserver's mechanism to start an app on a specific desktop into the=20
background (=3D without stealing focus).=20

Thanks very much,

Roland

--=20
Facts do not cease to exist when they are ignored.


 
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