Article #17887: Creating new constructors

 Question and Answer Database
FAQ2887D.txt Creating new constructors
Category :VCL
Platform :All
Product :All 32 bit
Question:
Is it possible to create a form that accepts additional parameters
for the create method?
Answer:
Simply replace the Create constructor to your form class to accept
additional parameters.
Example:
unit Unit2;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs;
type
TForm2 = class(TForm)
private
{ Private declarations }
public
constructor CreateWithCaption(aOwner: TComponent;
aCaption: string);
{ Public declarations }
end;
var
Form2: TForm2;
implementation
{$R *.DFM}
constructor TForm2.CreateWithCaption(aOwner: TComponent;
aCaption: string);
begin
Create(aOwner);
Caption := aCaption;
end;
uses Unit2;
procedure TForm1.Button1Click(Sender: TObject);
begin
Unit2.Form2 :=
Unit2.TForm2.CreateWithCaption(Application, 'My Caption');
Unit2.Form2.Show;
end;
7/16/98 4:31:28 PM

Last Modified: 01-SEP-99