So what do you want to accomplish here? HTML5 lets you do sms links, in the same way as mailto: so if you push a button in QV the sms dialog will pop up in your andriod/ios phone. Not sure about rim/symbian.
Or do you want send out batches of sms'es from your desktop where the batch is initiated from QV?
I have not done something like this in QV but experience from building SMS-integration in other systems a few years back was that there was not any real standard and the different vendors all had different apis to work with.
So no generic answer sadly.