Callback functions

Hi there,

declare your procedure type as

type
TMyCallBack = procedure(Params...);

then the function to call with the callback eg

procedure MyWrapperProc(S: String; CallBack: TMyCallBack);

then declare your procedure as

procedure MyCallback(Params...);

then all you need to do is call

MyWrapperProc(''Delphi Callback Proc'', MyCallback);


If your using callbacks from the windows API then
you need to declare them with the stdcall ie

type
TMyCallBack = procedure(Params...); stdcall;

if your using them from within a class do

type
TMyCallBack = procedure(Params...) of object;


Hope it helps

Mark.

OK, Got that.

I''ll give it a go and see what happends...

~ There''s no substitute for failure ~

Worked wonderfully.
Ta.

~ There''s no substitute for failure ~

Good!