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  1. halveb

    Fixed Length Strings

    Got it. I must have messed up memory when I did something wrong cause it is working like a charm now. Thanks to everyone for the help and ideas. halveb
  2. halveb

    Fixed Length Strings

    Okay I ma getting close. Using the first piece of advice I received from hilfy I was able to get the call to the DLL to work. function utlapi(var func:LongInt; DataString:string; var Length, RetC, Xtra1, Xtra2:LongInt):LongInt; stdcall; external 'PCSUTL32.DLL'; This is my call to the DLL...
  3. halveb

    Fixed Length Strings

    I did a search on Memory Block and saw a post you had written about sharing memory between applications. I haven't read it in detail yet but it looks as though you are dealing with passing pointers. In this particular instance the DLL needs the string to be passed by value not by reference...
  4. halveb

    Fixed Length Strings

    Thanks Hilfy that explains why the SetLength didn't work. I you could be right but I tried assigning 8000 spaces to the variable I send and it didn't work. I need to find out what the VB code does with the following variable definition: Global hllData As String * 8000 It is most definetely a...
  5. halveb

    Fixed Length Strings

    I am calling a DLL where one of the parameters is a fixed length string (of 8000 bytes). In Visual Basic a fixed string can be dimensioned so that the string will always be of that size. Is there a way to do this in Delphi? I have tried using the SetLength(string, size) function but this...
  6. halveb

    Calling DLL from Delphi

    Oops, I don't have a header file nor the utilities to create a lib from the DLL. :-( I don't do any C programming other than calling DLLs from VB and now hopefully Delphi.
  7. halveb

    Calling DLL from Delphi

    Thanks hilfy I'm off to that site to read up and download the tool. Hope I can figure with that tool. It certainly looks like what I need.
  8. halveb

    Calling DLL from Delphi

    I have a DLL that I currently call successfully from a Visual Basic program that I cannot seem to get defined properly in Delphi. I am new to Delphi and I suspect that the different variable types are what are causing my problems. The code declaring the DLL in VB is as follows: Declare...

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