   pointer to pointer
  I am writing a function using borland c++ builder 6 to accept a pointer to a pointer to an image ;) (yes, pointer to pointer) but the syntax doesnt seem to work for me.this is my function header:void __fastcall TForm1::AdjustImage (TImage** ipp, int v, int h)now that compiles fine, but the errors come when I need to dereference (and derefence again) that ipp variable.A TImage has a "parent" properly, but "**ipp.parent" doesnt work, the "ipp->->parent" approach doesnt work either. How is this done?   
  Use (*ipp)->parent;  (*ipp)->parent or (**ipp).parent.**ipp.parent will not work due to precedence; direct member access (. operator) is higher on the list than deference (* operator); thus the parens.   ;  just remeber this simple policy (which is true about 80% of the time):any time you use * to dereference with ANY OTHER member operations, you should enclose it in parenthesis.so when you do:(*it).Foo();or(*it)->SomeFunc();but not necesasry when put with non-member expression / statement operators:curr = prev*curr = *prev(*curr).next = *prevetc.   ;  Thank you both for your responses :) I have the feeling that this has happened to me in the past then forgotten about it :(Thanks again :)   ;Quote:Original post by xyuri..blah.. a pointer to a pointer to an image ;) (yes, pointer to pointer)Is this supposed to be something clever? A pointer to a pointer, big wow.;Quote:Original post by Anonymous PosterQuote:Original post by xyuri..blah.. a pointer to a pointer to an image ;) (yes, pointer to pointer)Is this supposed to be something clever? A pointer to a pointer, big wow.Thanks for the contribution. Do feel free to log in next time.   