Is this possible in Carbon? Do you know how to do this?

You can do it with Carbon Events.

Pseudo-code (clips):

static int ParseCarbonEvent(EventRef e,QEvent *qe)
{
UInt32 _class,kind;
Point point;
int n;

// Basic info on event
_class=GetEventClass(e);
kind=GetEventKind(e);

switch(_class)
{
// Mouse
case kEventClassMouse:
EventMouseButton b;

if(kind==kEventMouseDown)
{
GetEventParameter(e,kEventParamMouseLocation,typeQDPoint,
NULL,sizeof(Point),NULL,&point);
GetEventParameter(e,kEventParamMouseButton,typeMouseButton,
NULL,sizeof(b),NULL,&b);
printf(" button %d\n",b);
}
}
}

Neat, thanks

It would be a lot easier if I could do it with EventRecords though, is that possible? Or do I have to redo everything to use carbon events.

Probably best to get into Carbon Events anyway, I'm starting to like 'em quite a lot.

Are the EventRecords from the Classis system?
I know my first events on the Mac did only the 1st mouse button, and Carbon events were indeed needed.
Gives you a mouse wheel as well...