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Oct 1, 1998, 1:31pm

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The Aw.dll can be linked into an application created in the Delphi
visual programming environment using Object Pascal. The attached Zip
file includes a Pascal unit with a complete set of declarations and
import library for Aw.dll, plus a Delphi version of the Sample1 program,
which ran successfully earlier today. This may interest those AW
citizens who were discouraged when they heard that knowledge of C/C++
would be necessary to use the new SDK.

--------------8C2B3838D60C2273AA1E4CE2
Content-Type: application/x-zip-compressed; name="Sample1Form.zip"
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Oct 2, 1998, 2:44am

> This may interest those AW
>citizens who were discouraged when they heard that knowledge of C/C++
>would be necessary to use the new SDK.


Just a teeny-tiny nit-pick, but you only need to know C to use the SDK. C++
isn't necessary :)

-Roland

Oct 2, 1998, 6:14pm

Hi,

Do I need the awsdk.lib file with the akawapi.pas file ?
In order to use the dll ?

thx

Oct 2, 1998, 8:14pm

[View Quote] > Hi,
>
> Do I need the awsdk.lib file with the akawapi.pas file ?
> In order to use the dll ?
>
> thx

No; if you Use the akAWAPI unit in your form unit, and of course
compile and run the form with aw.dll in the same directory, that's all
you need. Delphi compiles the executable application, which, now that
the aw.dll is directly linked into it, will take care of your contact
with your Bot when the application runs. Except for the akAWAPI unit (it
replaces both the aw.h and aw.lib), the programs look a lot like C
programs. Of course Delphi makes it easy to design a windowed form with
controls on it, etc., and later you can make your own Bot object
classes, Avatar object classes, attach database objects, image files,
etc., which as you know is very easy to do in Delphi, and hard to do in
C or even C++.

Oct 3, 1998, 1:38am

[View Quote] >The Aw.dll can be linked into an application created in the Delphi
>visual programming environment using Object Pascal. The attached Zip
>file includes a Pascal unit with a complete set of declarations and
>import library for Aw.dll, plus a Delphi version of the Sample1 program,
>which ran successfully earlier today. This may interest those AW
>citizens who were discouraged when they heard that knowledge of C/C++
>would be necessary to use the new SDK.

Bless you. :) I've been programming in plain old C for over 10 years,
but I recently discovered Delphi and although I still like C better
than Pascal as a language, for quick and easy development the Delphi
package beats MS Visual C++ hands down. I was working on making a
Delphi unit for the SDK when I found yours here...thanks for saving me
the work. :)

-Magine

Oct 3, 1998, 1:45am

[View Quote] <snip>
> Of course Delphi makes it easy to design a windowed form with
>controls on it, etc., and later you can make your own Bot object
>classes, Avatar object classes, attach database objects, image files,
>etc., which as you know is very easy to do in Delphi, and hard to do in
>C or even C++.

Delphi is great...I wrote World Mapper with it, BTW. It would have
taken five times as long for me to write it in Visual C++.

-Magine
(pardon the slight off-topic)

Oct 3, 1998, 1:05pm

Could you explain me this line in detail from you UNIT ?

rc := aw_event_set(AW_EVENT_AVATAR_ADD, at AvatarAdd);

thx

jeanphi

Oct 3, 1998, 4:51pm

Calling a DLL function from another language is always a puzzle: what is
the equivalent in the calling language (Object Pascal) for the function
in the language used by the DLL (C)? If you guess wrong, the system is
sure to punish you with a crash. The C function has one parameter that
is a pointer to a procedure ('handler'); what is the Delphi equivalent
(what will make it pass the right content, in the right way)? So I
(finally, crash..crash) declared a type of global procedure pointers
called AWEventProc, for procedures with no arguments, and then declared
AvatarAdd as just that kind of procedure. The Delphi compiler passes the
address of AvatarAdd ( at AvatarAdd) to the DLL. I hope I got it right! Let
me know if something else works better for you.

[View Quote] > Could you explain me this line in detail from you UNIT ?
>
> rc := aw_event_set(AW_EVENT_AVATAR_ADD, at AvatarAdd);
>
> thx
>
> jeanphi

Oct 3, 1998, 9:01pm

BTW, I having a lot of problems with stack overflow and crashing,
until I changed all the "stdcall" declarations to "cdecl"...that seems
to work better....

-Magine


[View Quote] >The Aw.dll can be linked into an application created in the Delphi
>visual programming environment using Object Pascal. The attached Zip
>file includes a Pascal unit with a complete set of declarations and
>import library for Aw.dll, plus a Delphi version of the Sample1 program,
>which ran successfully earlier today. This may interest those AW
>citizens who were discouraged when they heard that knowledge of C/C++
>would be necessary to use the new SDK.

Oct 4, 1998, 12:17am

Thanks Magine. It improves things for me too. I was suddenly crashing in the
midst of aw_query CELL_OBJECT events--I thought it was due to not
understanding exactly how to use aw_query! Now progress seems possible again.

[View Quote] > BTW, I having a lot of problems with stack overflow and crashing,
> until I changed all the "stdcall" declarations to "cdecl"...that seems
> to work better....
>
> -Magine
>
[View Quote]

Oct 4, 1998, 9:55am

Thanks Canopus,

I am now starting my programmation with SDK on Delphi because of your
Library translation !

What are the declararions 'stdcall' and 'cdecl' do I have to modify
akAWAPI.pas ?

thx

jeanphi

Oct 4, 1998, 1:46pm

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I have substituted "cdecl" for "stdcall" as the calling convention used in
the akAWAPI.Pas unit, which is included (along with the Sample1 unit) in the
attached Zip file.

[View Quote] > BTW, I having a lot of problems with stack overflow and crashing,
> until I changed all the "stdcall" declarations to "cdecl"...that seems
> to work better....
>
> -Magine
>
[View Quote]

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--------------4A04C33028FB8E5BBA1930D9--

Nov 12, 1998, 1:35pm

To turn the attached Sample 1 into a full Delphi program, first start a new Project.
Take the empty Form and put onto it all the controls mentioned under TfrmakSample1:
two Panels, one Panel for the Memo and one Panel for the Button and the two Edit
boxes. Activate the Form's Create and Destroy methods, and the Button's Click
method. Name the Form something like "frmSample1". Save the Form unit as
"Sample1Form", and the Project as "Sample1". (You'll see that Delphi has
automatically listed each control and method under frmSample1 for you, as well as
declaring your Form as a global variable.)

Fill in the code for Button1.Click, Form.Create, and Form.Destroy, by copying from
the attached program. Declare a global procedure, AvatarAdd, and copy its
implementation from the attached program. (It's not declared as a public Form method,
because Delphi should pass a simple procedure address, at AvatarAdd, to the server, not
an object.method address.) Add the akAWAPI unit to your project, and add "akAWAPI" to
the uses clause in your Form interface. Run Project Syntax Check, Compile, and
SaveAll. You should have a working GreeterBot program.


[View Quote] > The Aw.dll can be linked into an application created in the Delphi
> visual programming environment using Object Pascal. The attached Zip
> file includes a Pascal unit with a complete set of declarations and
> import library for Aw.dll, plus a Delphi version of the Sample1 program,
> which ran successfully earlier today. This may interest those AW
> citizens who were discouraged when they heard that knowledge of C/C++
> would be necessary to use the new SDK.
>
> ------------------------------------------------------------------------
>
> Name: Sample1Form.zip
> Sample1Form.zip Type: Zip Compressed Data (application/x-zip-compressed)
> Encoding: base64

Jan 7, 1999, 4:14pm

Later we discovered that "cdecl" should be appended to the declarations of event
handler and callback handler procedures in your program units, too. That way the
Delphi compiler will know how the aw.dll is going to call your procedure, as well as
how your program should call aw.dll functions and procedures (which we fixed right
away).

[View Quote] > I have substituted "cdecl" for "stdcall" as the calling convention used in
> the akAWAPI.Pas unit, which is included (along with the Sample1 unit) in the
> attached Zip file.
>
[View Quote]

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