class constructor - Backport to D2007.

[Ian Branch 121]

Hi Team,

As much as I don't want to I have to backport an App to D2007.

It currently uses the following code to pass a variable around the App.

unit ViewerData;

interface

type
  TViewerData = class

  class var
    //
    mssFileName: String;
    class constructor Create;
    //
  end;

implementation

Uses WindowsStore;

class constructor TViewerData.Create;
begin
  //
  mssFileName := '';
  //
end;

end.

It has been a long time since I toiled in D2007 but IIRC it doesn't support either WindowsStore or class constructor.

Is the above code modifiable to D2007 compatability?

Appreciate any guidance.

 

Regards & TIA,

Ian

Edited November 1, 2019 by Ian Branch
Correction to Subject.

[dummzeuch 1392]

Make the class constructor a regular procedure, the class variable a variable inside the unit and call the procedure from initialization.

[David Heffernan 2300]

Class vars are global variables inside a type's name's pace. Class constructors are called from unit initialization. Class destructor from unit finalization. 

[Stefan Glienke 1905]

If the code you posted is all the class constructor does it's pointless anyway as string variables don't have to be initialized to empty string.

[Ian Branch 121]

Hi Guys,

Apologies for not responding sooner.  Family issue.

All sorted now thank you.  As it was only one variable I just made it Global.

Regards,

Ian