signal/slots and dynamic objects

[anda_skoa]

if i dynamicially allocate a, then connect a, assign the adress in pointer b, and null down pointer a, does qt use the memory location or the object pointer a (thats a null ptr right now) so ptr b will get the signal?

The pointer is just a handle to the object, setting it to null_ptr does not affect the object in anyway.
If you assign a pointer to another pointer, then both are independent handles to the same object.

i think its the pointer it uses and not the memory location, but i want to be sure.

Neither, it uses the object that is pointed to.

for my use right now i assume its the pointer object and not the memory allocation it hooks to.

The other way around.

The pointer "object" is totally irrelevant, the only thing that matters is the memory location (object instance) the pointer refers/points to.

Cheers,
_