An example of declaring vars. in Interface Section

[Pontelo]

Please state me an example on how to declare
variables in Interface Section

Thank You !

 

[colttaylor]

unit myunit;

interface

uses global_var1 : integer;
global_var2 : integer;

implementation

uses local_var1 : integer;
local_var2 : integer;

end.

 

[towerbase]

In case you are confused, the above example should be as follows (var instead of uses):-

interface

    var global_var1 : integer;
         global_var2 : integer;    

  implementation
  
    var local_var1 : integer;
         local_var2 : integer;

  end.

Note that when you create a new application in Delphi, the IDE generates code that has a variable in the interface section. Form1 is a variable. Simply add your interface variables after the Form1 declaration.

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;
type
  TForm1 = class(TForm)
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.DFM}
end.