How to convert joystick values to string
Arpitgarg last edited by
hi, am doing a project in which i have to read joystick values and send them to another comp . I am able to read joystick values, but not able to bundle them together . I tried doing this using by creating string.to convert joystick values i used "toString "member function.
the code is
a1=(joystick->getAxis(0)).toString(); a2=(joystick->getAxis(1)).toString(); a3=(joystick->getAxis(2)).toString(); a4=(joystick->getAxis(3)).toString();@
I am able to read and display values correctly
but this converting to string gives an error::
Request for member function "toString();" ,which is of non class type int
how can i remove this error.
also is there any other way to send all joystick value as a packet over a network
florent.revelut last edited by
- your joystick->getAxis() returns an int.
- int has no method toString (it's a base scalar type)
if a1 is a QString (I suppose it is ?), you can use "QString::number":http://doc.qt.nokia.com/4.7/qstring.html#number-4
Sending over the network is a bit unclear. But another idea is to look at "QDataStream":http://doc.qt.nokia.com/4.7/qdatastream.html on top of a well-chosen IODevice (like "QUdpSocket":http://doc.qt.nokia.com/4.7/qudpsocket.html )
Note that sending to another computer, you need to decide of a protocol... Sounds to me that datagram would fit your need.
goetz last edited by
There is no general toString() like in java. You'll have to convert to QString with that's static methods:
QString a1 = QString::number(joystick->getAxis(0));
You could have found this from the fine "QString documentation":http://doc.qt.nokia.com/4.7/qstring.html yourself.