On 8/2/05, soonhuat ong <[EMAIL PROTECTED]> wrote:
> For example, each time a purchase is done, i want the system to print a line
> of purchase
> information such as customoer name, price etc ...
You can create a class to handle the printing, initializes an object
of this class in the "initialization section" and releases it in the
"finalization"...
something like:
Print.pas
-----------
type
TPrint = class
procedure PrintLine( const S: string );
:
end;
var
MyPrinter: TPrint;
implementation
:
initialization
MyPrinter := TPrint.Create;
finalization
MyPrinter.Free;
And in your code you just need to call: MyPrinter.PrintLine( 'blablabla' );
Another way is by using class methods, in this way you avoid creating
a global variable...
TPrint = class
class procedure PrintLine( const S: string );
:
end;
implementation
var
PrinterFile: TextFile;
class procedure TPrint.PrintLine( const S: string );
begin
WriteLn( PrinterFile, S );
end;
The initialization of the printer and everything else belongs to you,
now I'll go sleep a little haha :)
--
"ME ALIMENTE [http://br-linux.org/noticias/002750.html] hehe"
"Invente, Tente!!! Faça um código eficiente" (Jonas Raoni haha)
Jonas Raoni Soares Silva
---------------------------
Desenvolvedor de aplicações
jonasraoni at gmail dot com
http://www.joninhas.ath.cx:666
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