Question

Select folder dialog with create folder

Asked by: Delphiwizard

Hi,

I'm looking for a solid dialog component (or a way to adjust one like TOpenDialog) to be able to select a shellfolder from a list of available folders.
This solution must provide the functionality to create a new folder on the fly (including renaming of a folder).
Component must work under Delphi 7 and windows XP.
I prefer a free component, but all suggestions are appreciated.

Thank you for your help.
Stef

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Asked On
2005-08-31 at 02:51:27ID21546014
Tags

delphi

,

folder

,

dialog

,

select

Topic

Delphi Programming

Participating Experts
3
Points
500
Comments
8

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Answers

 

by: RadikalQ3Posted on 2005-08-31 at 02:59:00ID: 14792124

Hi!

Test if this is valid for your porpouses:

procedure TForm1.Button3Click(Sender: TObject);
//uses ShlObj
var
  BrowseInfo  : TBrowseInfo;
  PIDL        : PItemIDList;
  DisplayName : array[0..MAX_PATH] of Char;
begin
  FillChar(BrowseInfo,SizeOf(BrowseInfo),#0);
  BrowseInfo.hwndOwner      := Handle;
  BrowseInfo.pszDisplayName := @DisplayName[0];
  BrowseInfo.lpszTitle      := 'Select Directory';

  BrowseInfo.ulFlags := BIF_RETURNONLYFSDIRS or BIF_EDITBOX or $40;
  CoInitialize(NIL);

  PIDL := SHBrowseForFolder(BrowseInfo);
  if Assigned(PIDL) then
    if SHGetPathFromIDList(PIDL, DisplayName) then
      ShowMessage(DisplayName);
end;

 

by: DelphiwizardPosted on 2005-08-31 at 03:09:39ID: 14792182

I can't get past:   CoInitialize(NIL);
Undeclared identifier.

 

by: RadikalQ3Posted on 2005-08-31 at 03:13:12ID: 14792200

Sorry, I forgot this: Add ShlObj, ActiveX to the uses

 

by: DelphiwizardPosted on 2005-08-31 at 03:21:39ID: 14792244

Yes this works.
But I would like to have it in a function that will also accept a starting folder.

function MySelectFolder(StartFolder : String) : String;

 

by: robert_marquardtPosted on 2005-08-31 at 03:29:50ID: 14792274

The JediVCL http://jvcl.sf.net contains JvBrowseForFolderDialog which should meet your needs.

 

by: HillGrooverPosted on 2005-08-31 at 03:54:35ID: 14792399

This should do what you're wanting i think


uses ShlObj, ActiveX;

//global variables
var
   Form4: TForm4
   lg_StartFolder: String;


//functions
//no need to declare these anywhere at the top of the unit
function BrowseForFolderCallBack(Wnd: HWND; uMsg: UINT; lParam, lpData: LPARAM): Integer stdcall;
begin
  if uMsg = BFFM_INITIALIZED then
     SendMessage(Wnd,BFFM_SETSELECTION, 1, Integer(@lg_StartFolder[1]));
  result := 0;
end;

function BrowseForFolder(const browseTitle: String; const initialFolder: String =''): String;
var
  browse_info: TBrowseInfo;
  folder: array[0..MAX_PATH] of char;
  find_context: PItemIDList;
begin
  FillChar(browse_info, SizeOf(browse_info), #0);
  lg_StartFolder := initialFolder;
  browse_info.pszDisplayName := @folder[0];
  browse_info.lpszTitle := PChar(browseTitle);
  browse_info.ulFlags := BIF_RETURNONLYFSDIRS or BIF_EDITBOX or $40;
  browse_info.hwndOwner := Application.Handle;

  if initialFolder <> '' then
     browse_info.lpfn := BrowseForFolderCallBack;
  find_context := SHBrowseForFolder(browse_info);
  if Assigned(find_context) then
  begin
    if SHGetPathFromIDList(find_context,folder) then
      result := folder
    else
      result := '';
    GlobalFreePtr(find_context);
  end
  else
    result := '';
end;


//you can call it like so
procedure TForm4.Button3Click(Sender: TObject);
begin
   BrowseForFolder('Select Dir', 'C:\');
end;


hope this helps
HillGroover

 

by: DelphiwizardPosted on 2005-08-31 at 04:19:15ID: 14792538

Thank you HillGroover, that's exactly what I needed.
Thanks to all others also for your help.

 

by: HillGrooverPosted on 2005-08-31 at 07:53:46ID: 14794391

No probs

Glad it helped :o)
HillGroover

20120131-EE-VQP-002

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