Embed?

[ArcGames]

I have a WINDOWS application which allows me to use dll's and their functions. What I want to do is embed a listbox or a comboxbox from a dll into the application and use it. The problem is, I do not know how the the source code for the dll should be constructed, however I do know the calling conventions must be either stdcall or cdecl.

How should the source code look for this dll (I use Delphi)?

 

[ArcGames]

Please, someone help me?

 

[Robertio]

To create a simple DLL from Delphi, your project source file should look something like:

library MyDLL;


uses
  SysUtils,
  Classes,
  Blah, blah, blah

exports
   Function_To_Be_Called_Remotely;

begin
end.

Then in your unit

unit Blah;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Etc... 

type
  TBlahDLL = class(TWhatever)
    procedure BlahDLLCreate(Sender: TObject);
  private
    { Private declarations }
    procedure pDoStuff;
  public
    { Public declarations }
  end;

var
  BlahDLL: TBlahDLL;

function Function_To_Be_Called_Remotely:Boolean; stdcall;

implementation

uses
  Whatever_Units;

{$R *.DFM}

function Function_To_Be_Called_Remotely: Boolean;
begin
  with BlahDLL do
  try
    Screen.Cursor := crHourGlass;
    Application.Createform(TBlahDLL, BlahDLL);
    BlahDLL.DoStuff;
  finally
    BlahDLL.free;
    Screen.Cursor := crDefault;
  end;
end;

procedure TBlahDLL.DoStuff;
begin
  // Stuff
end;

...

Robertio
Alias: Robbie Calder
Software Developer
urc@walkermartyn.co.uk