// Handle the returnPressed() signal on our textline entry box.
private void gotReturnPressed()
{
// Here is an example of how to use a custom C# event.
// This function gets called by Qt's signal mechanism;
// in response we pull the text string out of the textline,
// clear the textline, and forward the string to a C# event.
//
// Note that forwarding the event is the LAST thing we do:
// it is good practice to do this whenever possible,
// because it avoids the possibility of subtle bugs
// that might occur if the event handler ends up
// calling back into this class recursively.
//
// Note also that we make a local copy of the MessageHandler
// BEFORE we actually test it for null and call it.
// This is good practice in case of multithreaded access,
// as the event might change between the test and the call.
String msg = textline.text(); // Get a copy of the string
textline.clear(); // Clear the textbox
MessageHandler h = messageEntered;
if (h != null) // Forward it as a C# event,
{
h(this, msg); // only if there is a handler.
}
else
{
//Console.WriteLine("Message entered: " + msg);
addMessage("myself", msg);
// Pass message from GUI to net class
netCpy.msgFromGui(msg);
}
}