On Apr 30, 2007, at 3:08 PM, Tim Hare wrote:
>> Norman Wrote:
>>>> RedBlackRedRampEvaluate(ByRef info As MemoryBlock, inValue As
>>>> MemoryBlock, ByRef outValue As MemoryBlock)
>>
>>> This should just be Ptr. Byref is not required.
>>> RedBlackRedRampEvaluate( info As Ptr, inValue As Ptr, outValue As
>>> Ptr)
>>
>> Charles Wrote:
>>> Probably you should declare all three parameters to be of type
>>> MemoryBlock.
>>
>>> Sub RedBlackRedRampEvaluate(info as MemoryBlock, inValue as
>>> MemoryBlock, outValue as MemoryBlock)
>>
>> These two replies indicate my fundamental question. It appears that
>> there is
>> no *correct* answer, other than to try each out and see what
>> works. :-)
>
> There *is* a correct answer. In fact, there are two, and you can
> pick the
> one you prefer.
>
> int *value ==> value as Ptr (or MemoryBlock)
> int **value ==> ByRef value as Ptr (or MemoryBlock)
>
> You don't need to "see what works".
Actually, there are at least three.
int *value ==> value as Integer
int **value ==> value as Integer
In some earlier versions of REALbasic, this was the only thing I
could get to work.
Charles Yeomans
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