Pointer to an Array?

BlitzMax Forums/BlitzMax Beginners Area/Pointer to an Array?

Gabriel

(Posted 2006) [#1]

Sorry, I'm having a bit of a brainfart here, because I've done this plenty of times. I want to pass the address of an array ( integers, not UDT's ) to a DLL, and I can't remember the syntax for doing it.

I've set the extern up to expect an Int Ptr, and then what do I pass to it?

I'm guessing VarPtr(MyArray[0]) but I'm not 100%.

grable

(Posted 2006) [#2]

Int Ptr(MyArray) should do it =)

EDIT: btw, if the array and the pointer are of the same type then MyArray is all you need.

Gabriel

(Posted 2006) [#3]

Thanks Grable. All three seem to compile, but just MyArray alone is most readable, so I think I'll use that.

ImaginaryHuman

(Posted 2006) [#4]

If it's an array of integers surely MyArray actually is the pointer to the first element, as an int pointer already?

ie don't need the Int Ptr() part?

Gabriel

(Posted 2006) [#5]

That's what Grable says in his edit. ( Which was before I replied, so it must have been here when you replied. )

btw, if the array and the pointer are of the same type then MyArray is all you need.