Embed Xnest in QX11EmbedContainer

surlykke

Hi list

I wanted to run the X-server Xnest inside a Qt widget, so I adapted the example from QX11EmbedContainer as follows:

@
#include <QApplication>
#include <QProcess>
#include <QDebug>
#include <QX11EmbedContainer>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);

QX11EmbedContainer container;
container.show();

QProcess process;
process.setProcessChannelMode(QProcess::ForwardedChannels);

QString program("Xnest");
QStringList args;
args << "-parent" << QString::number(container.winId(), 16).prepend("0x")  << ":1";

process.start(program, args);

return a.exec&#40;&#41;;

}
@

When I run it I get:

@
[dix] Could not init font path element /usr/share/fonts/OTF/, removing from list!
xnest warning: unhandled event
xnest warning: unhandled event
xnest warning: unhandled event
X Error of failed request: BadAccess (attempt to access private resource denied)
Major opcode of failed request: 2 (X_ChangeWindowAttributes)
Serial number of failed request: 135
Current serial number in output stream: 137
@

There is a brief flicker where it looks like Xnest has embedded itself in the QX11EmbedContainer and the title of the widget is changed to Xnest, but Xnest itself exits.

If i run an instance of xterm I am able to embed Xnest in that xterm-instance with the command:

@Xnest -parent <windowid-of-xterm-instance> :1@

Hours of googling has not come up with anything.

Does anybody know what the problem is? Has anybody ever run Xnest embedded in a Qt widget?

best regards
Christian Surlykke