GetDir in Delphi2010 not working under Windows 7? - delphi

Question

I have the following sequence of commands in Delphi2010:
var netdir:string;
....
OpenDialog1.InitialDir:=netdir;
....
OpenDialog1.Execute...
....
GetDir(0,netdir);
....
After executing OpenDialog I should have in string netdir the directory where I finished
my OpenDialog.Execute. And in the next OpenDialog.Execute it should start from that
directory.
It works fine on XP, but not on Windows 7?
It always starts from directory where the program is installed.
Any idea what might be wrong?
Thanks.

Answer 1

Your question cannot be answered as it stands, because it lacks several crucial details.
Is netdir a global constant, or does it go out of scope every now and then?
Do you set netdir to something prior to OpenDialog1.Execute?
Is the question about what directory GetDir return (as your title suggests), or about how to make the open dialog remember the last visited directory (as the body matter suggests)?
I will assume that 1) netdir is a global constant, that 2) you do not set it initially, and that 3) you want the open dialog to remember the last visited folder. Thus you have something like
unit Unit3;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;
type
TForm3 = class(TForm)
OpenDialog1: TOpenDialog;
procedure FormClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form3: TForm3;
var
netdir: string;
implementation
{$R *.dfm}
procedure TForm3.FormClick(Sender: TObject);
begin
OpenDialog1.InitialDir := netdir;
OpenDialog1.Execute;
GetDir(0, netdir);
end;
end.
Then the solution is to let Windows remember the directory for you, that is, simply do
procedure TForm3.FormClick(Sender: TObject);
begin
OpenDialog1.Execute;
end;
alone! But why doesn't your method work? Well, GetDir doesn't return what you want. If you need explicit control, do
procedure TForm3.FormClick(Sender: TObject);
begin
OpenDialog1.InitialDir := netdir;
OpenDialog1.Execute;
netdir := ExtractFilePath(OpenDialog1.FileName)
end;

Answer 2

If you not wan´t opendialog you can do as below to get dir under your program.
yourdir:=ExtractFilePath(Application.ExeName);
I have done it in Vista and it work.

Answer 3

This is the solution for the problem
openDialog1.Options := [ofFileMustExist];
if openDialog1.Execute then
begin
end;