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Urgent help on who to coùmunicate to external application

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newprog39

newprog39

Programmer
Sep 26, 2015
15
DZ
Hi all:

I have imported a library of a software to delphi7 , I have got a file which called WINFIOLLib_TLB.pas.which contain a procedure and interface .

in order to comunicate to that sofware I have found this code on the net but it doesen't work properly .

the first fault I got is ':' expected but '=' found on TForm1 = class(TForm).

Code: 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
TWFEvent = class (TInterfacedObject, IWFEvent)

  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    procedure Notify(event: SYSINT; const text: WideString); safecall;

  end;

var
  Form1: TForm1;
  WinFIOL_Application1: TWinFIOL_Application;



implementation

{$R *.dfm}

procedure TWFEvent.Notify(event: SYSINT; const text: WideString); safecall;
begin;
Form1.Memo1.Lines.Add(IntToStr (Event));
Form1.Memo1.Lines.Add(String (Text));
procedure TForm1.FormDblClick(Sender: TObject);
Var
Ch: IWFChannel;
Event: TWFEvent;
begin
Ch := WinFiol_Application1.GetChannelPointer(WinFiol_Application1.GetCurrentChannel);
WinFiol_Application1.GetCurrentChannel <> 0
Event := TWFEvent.Create; //
EMask := WFEVENTMASK_ALL; //
Ch.Advise(Channel.Event, EMask);


end;



procedure TForm1.FormCreate(Sender: TObject);
begin
WinFIOL_Application1 := TWinFIOL_Application.Create(self);

end;

procedure TForm1.Button1Click(Sender: TObject);
Var
Chn_Name: String;
New_Ch: Integer;

begin
OpenDialog1.InitialDir := 'C:\Program Files\Element Management\ChnFiles';
If OpenDialog1.Execute Then Chn_Name := OpenDialog1.FileName Else Exit;
WinFIOL_Application1.OpenChannelFile(Chn_Name, 0, New_Ch);
WinFiol_Application1.GetChannelPointer(New_Ch).SetReadBuffer(512, 4);

end;
end.

NB: all fault code are summurized bellow:

[Error] Unit1.pas(25): Undeclared identifier: 'TWinFIOL_Application'
[Error] Unit1.pas(33): ';' expected but '.' found
[Error] Unit1.pas(33): '=' expected but ')' found
[Error] Unit1.pas(33): '=' expected but ';' found
[Error] Unit1.pas(34): Expression expected but 'BEGIN' found
[Error] Unit1.pas(35): Undeclared identifier: 'Event'
[Error] Unit1.pas(37): Statement expected but 'PROCEDURE' found
[Error] Unit1.pas(39): Undeclared identifier: 'IWFChannel'
[Error] Unit1.pas(40): Constant or type identifier expected

what is the wrong on this code ?

thanks for your help and suggestions
 
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Simple, you must add WINFIOLLib_TLB to your uses list.

/Daddy

-----------------------------------------------------
Helping people is my job...
 
Upvote 0 Downvote
Hi whosrdaddy:

first I'm sorry to be late and thanks for your replying

I have copy both WINFIOLLib_TLB.pas and WINFIOLLib_TLB to project delphi directory but I still get the following error :

Expected ':' but '=' found.

[Fatal Error] Unit1.pas(7): Could not compile used unit 'WINFIOLLib_TLB.pas'
[Pascal Error] Unit1.pas(1): Unable to invoke Code Completion due to errors in source code

I have ajusted the code like this in use unit:

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,WINFIOLLib_TLB.pas;


just one thing is it true what I did in bellow declaration?

type
TWFEvent = class (TInterfacedObject, IWFEvent)

TForm1 = class(TForm)

thanks for your support and suggestion .
 
Upvote 0 Downvote
It seems to me that you don't have any Delphi experience at all :(

Your code is broken at so many levels I don't know where to start!

your code should be looking something like this:

Code: 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, WINFIOLLib_TLB;

type
  TWFEvent = class (TInterfacedObject, IWFEvent)
  public
    procedure Notify(event: SYSINT; const text: WideString); safecall;
  end;

  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
    WinFIOL_Application1: TWinFIOL_Application;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TWFEvent.Notify(event: SYSINT; const text: WideString); safecall;
begin;
  Form1.Memo1.Lines.Add(IntToStr (Event));
  Form1.Memo1.Lines.Add(String (Text));
end;

procedure TForm1.FormDblClick(Sender: TObject);

Var
  Ch: IWFChannel;
  Event: TWFEvent;

begin
 Ch := WinFiol_Application1.GetChannelPointer(WinFiol_Application1.GetCurrentChannel);
 Event := TWFEvent.Create; //
 EMask := WFEVENTMASK_ALL; //
 Ch.Advise(Channel.Event, EMask);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
 WinFIOL_Application1 := TWinFIOL_Application.Create(self);
end;

procedure TForm1.Button1Click(Sender: TObject);

Var
  Chn_Name: String;
  New_Ch: Integer;

begin
 OpenDialog1.InitialDir := 'C:\Program Files\Element Management\ChnFiles';
 If OpenDialog1.Execute Then 
  Chn_Name := OpenDialog1.FileName 
 Else 
  Exit;
 WinFIOL_Application1.OpenChannelFile(Chn_Name, 0, New_Ch);
 WinFiol_Application1.GetChannelPointer(New_Ch).SetReadBuffer(512, 4);
end;

end.

/Daddy


-----------------------------------------------------
Helping people is my job...
 
Upvote 0 Downvote
Maybe I'm being a bit thick - but the line

[li][tt]WinFiol_Application1.GetCurrentChannel <> 0[/tt][/li]

as it doesn't seem to do anything; it's a Boolean statement but doesn't appear to be assigned anywhere
 
Upvote 0 Downvote
yes, that line makes no sense, the code is a mess.
I edited my response, thanks.

-----------------------------------------------------
Helping people is my job...
 
Upvote 0 Downvote
I recently installed Delphi 7 Enterprise on my machine - what a nightmare under Windows 10 and then trying to register it. I used to work a lot in Delphi, but for the last umpteen years it has been all .NET. I'm currently trying to regain my Delphi skills - but not easy with an 80% working IDE. I've spoken to Embarcadero, they helped me register the program and tell me there are no updates to 7. That's why I was a little reluctant to comment on the above code (both yours and the OP's)
 
Upvote 0 Downvote
Hi whosrdaddy:

thanks for your valuable remarks and support .

I counld'nt compile yet the project I still get one error:

Fatal Error] Unit1.pas(7): File not found: 'WINFIOLLib_TLB.pas.dcu'

thanks
 
Upvote 0 Downvote
check out my code and compare to yours. The error is fairly trivial.
You've added WINFIOLLib_TLB.pas to your uses clause while it should be WINFIOLLib_TLB...

/Daddy

-----------------------------------------------------
Helping people is my job...
 
Upvote 0 Downvote
Hi again:

when you add WINFIOLLib_TLB to uses you will get bellow errors:

Build
[Error] Unit1.pas(12): Undeclared identifier: 'SYSINT'
[Error] Unit1.pas(51): Undeclared identifier: 'EMask'
[Error] Unit1.pas(52): Undeclared identifier: 'Channel'
[Error] Unit1.pas(52): Statement expected, but expression of type 'TWFEvent' found
[Fatal Error] Project1.dpr(5): Could not compile used unit 'Unit1.pas'

that's why I have changed it just for test purpose .

just to add one thing:

WINFIOLLib_TLB.pas & WINFIOLLib_TLB.dcu are located in bellow directory is it normal ?

C:\Program Files\Borland\Delphi7\Imports
C:\Program Files\Borland\Delphi7\Projects
C:\Program Files\Borland\Delphi7\Lib

NB : if necessary I will send them to your email adress.

thanks
 
Upvote 0 Downvote
Did you even read my first answer?
Your code is broken.
Please try the code that I posted.

/Daddy

-----------------------------------------------------
Helping people is my job...
 
Upvote 0 Downvote
hi again :

this is the code I have used but I still have error :

Code: 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, WINFIOLLib_TLB;

type
  TWFEvent = class (TInterfacedObject, IWFEvent)
  public
    procedure Notify(event: SYSINT; const text: WideString); safecall;
  end;

  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
    WinFIOL_Application1: TWinFIOL_Application;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TWFEvent.Notify(event: SYSINT; const text: WideString); safecall;
begin;
  Form1.Memo1.Lines.Add(IntToStr (Event));
  Form1.Memo1.Lines.Add(String (Text));
end;

procedure TForm1.FormDblClick(Sender: TObject);

Var
  Ch: IWFChannel;
  Event: TWFEvent;

begin
 Ch := WinFiol_Application1.GetChannelPointer(WinFiol_Application1.GetCurrentChannel);
 Event := TWFEvent.Create; //
 EMask := WFEVENTMASK_ALL; //
 Ch.Advise(Channel.Event, EMask);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
 WinFIOL_Application1 := TWinFIOL_Application.Create(self);
end;

procedure TForm1.Button1Click(Sender: TObject);

Var
  Chn_Name: String;
  New_Ch: Integer;

begin
 OpenDialog1.InitialDir := 'C:\Program Files\Element Management\ChnFiles';
 If OpenDialog1.Execute Then 
  Chn_Name := OpenDialog1.FileName 
 Else 
  Exit;
 WinFIOL_Application1.OpenChannelFile(Chn_Name, 0, New_Ch);
 WinFiol_Application1.GetChannelPointer(New_Ch).SetReadBuffer(512, 4);
end;

end.

 
Upvote 0 Downvote
The procedure Notify seems to start with a begin; !!!!! Tried to remove ';'?
May actually be ignored.

Do you need 'safecall' both at the declaration and in the code? (also Notify)
 
Upvote 0 Downvote
Hi walker2:

regarding begin; it was corrected .

for 'safecall' it is included in library imported .
 
Upvote 0 Downvote
Hi all:

in attachement two imported files to delphi .

thanks for your help
 
Upvote 0 Downvote
I copied the file from the link and the source code.
First you should add yhe "uses" units from the TLB file to the main unit as well.
Then I found errors in this part:


procedure TForm1.FormDblClick(Sender: TObject);
Var
Ch: IWFChannel;
Event: TWFEvent;
EMask : SYSINT;
begin
Ch := WinFiol_Application1.GetChannelPointer(WinFiol_Application1.GetCurrentChannel);
Event := TWFEvent.Create; //
EMask := $FF; //WFEVENTMASK_ALL; //
Ch.Advise(Event, EMask);
end;

EMask has never been declared and is only used here, so I added it to the Var part
Ch.Event is used in the "Advise c"all, but does not exist, so I left out the "Ch." part as "Event" was declared separately...
Could not find the "WFEVENTMASK_ALL" parameter and also not the type of "SYSINT", so just assumed a byte and used $FF as mask
By doing this the program compiles.
No idea what it should do of course.
Cheers, Joop
 
Upvote 0 Downvote
hi beunders:

thanks a lot of for your help .

the modification was applied but I have got this message :

Build
[Error] Unit1.pas(12): Undeclared identifier: 'SYSINT'
[Fatal Error] Project1.dpr(5): Could not compile used unit 'Unit1.pas'

the code is listed bellow:

Code: 
interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, WINFIOLLib_TLB;

type
  TWFEvent = class (TInterfacedObject, IWFEvent)
  public
    procedure Notify(event: SYSINT; const text: WideString); safecall;
  end;

  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormDblClick(Sender: TObject);
  private
    { Private declarations }
    WinFIOL_Application1: TWinFIOL_Application;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TWFEvent.Notify(event: SYSINT; const text: WideString); safecall;
begin;
  Form1.Memo1.Lines.Add(IntToStr (Event));
  Form1.Memo1.Lines.Add(String (Text));
end;

procedure TForm1.FormDblClick(Sender: TObject);
Var
Ch: IWFChannel;
Event: TWFEvent;
EMask : SYSINT;
begin
Ch := WinFiol_Application1.GetChannelPointer(WinFiol_Application1.GetCurrentChannel);
Event := TWFEvent.Create; //
EMask := $FF; //WFEVENTMASK_ALL; //
Ch.Advise(Event, EMask);

end;

procedure TForm1.FormCreate(Sender: TObject);
begin
 WinFIOL_Application1 := TWinFIOL_Application.Create(self);
end;

procedure TForm1.Button1Click(Sender: TObject);

Var
  Chn_Name: String;
  New_Ch: Integer;

begin
 OpenDialog1.InitialDir := 'C:\Program Files\Element Management\ChnFiles';
 If OpenDialog1.Execute Then
  Chn_Name := OpenDialog1.FileName 
 Else 
  Exit;
 WinFIOL_Application1.OpenChannelFile(Chn_Name, 0, New_Ch);
 WinFiol_Application1.GetChannelPointer(New_Ch).SetReadBuffer(512, 4);
end;

end.

thanks again for your help.
 
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