Re: GetProcAddress in Delphi .net 2005

Andre Joosten wrote:
I have a couple of Tax modules (Dll) . so i made an object that loads the correct dll.
The Dll's are ok, i can link them stasticaly. eg This works :


Procedure CalcProfit (Cost : Currency;
                           CostTaxID : Integer;
                           Sell : Currency;
                           SellTaxID : Integer;
                           Var ProfitD : Currency;
                           Var ProfitP : Double); External 'STAX.DLL';



But when I try Dynamicaly, It loads the Dll, and finds the ProcAddress,
but i get an error when trying to use the address. I also checked in the dll, it never gets there, so its not (just) parameter handeling.

All the documentation indicates that it should work...


"Marc Rohloff" <marcrohloff_ng@xxxxxxxxxxx> wrote in message news:1114607167.255048.239710@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Andre Joosten wrote:

I am having difficulty making the below bit work.
     fLibH := LoadLibrary(LibName);
        @fGetTaxName :=


GetProcAddress(fLibH,GetTaxNameProcName).ToPointer;

It 'sorta' works, but I can not use the fGetTaxName or fCalcProfit
Without a error :
"Object reference not set to an instance of an object"

What am i doing wrong... 

The problem is that .NET does not really work this way. Sometimes you
need to do things differently in .NET.

So what are you trying to do, exactly?

--
Marc Rohloff


var
  CalcProfit:Procedure ( what ever params..)

-- some where in code land ---;

 CalcProfit := GetProcAddress(DllHandle, 'TheRealNameOfExport');

--
 you most likely would have less problems using real win32 code.

 must be some ugly bouncing around going on in .Net

.

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