When launching Qt application from WRT widget command line arguments aren't available in main function.

var criteria = new Object();
criteria.ApplicationID = "s60uid://" + uid;
criteria.CmdLine = params;  
 
var result = serviceObj.IAppManager.LaunchApp(criteria);

However command line arguments are available in CEikAppUi class ProcessCommandParametersL method but that requires Symbian code. I think these should be made available for Qt application without needing Symbian native code.

Attached workaround code that accesses command line arguments using ProcessCommandParametersL method.