Select folder dialog

Select folder dialog

Yesterday I posted how to display standard dialog for files (open/save). Today I want to show how you may use stamndard dialog when user must select a folder/directory. Use the next function: uses SysUtils, ShlObj;function BrowseCallbackProc(hwnd: HWND; uMsg: UINT; lParam: LPARAM; lpData: LPARAM): Integer; stdcall;begin if (uMsg = BFFM_INITIALIZED) then SendMessage(hwnd, BFFM_SETSELECTION, 1, lpData); BrowseCallbackProc := 0;end;function GetFolderDialog(Handle: Integer; Caption: string; var strFolder: string): Boolean;const BIF_STATUSTEXT = $0004; BIF_NEWDIALOGSTYLE = $0040; BIF_RETURNONLYFSDIRS = $0080; BIF_SHAREABLE = $0100; BIF_USENEWUI = BIF_EDITBOX or BIF_NEWDIALOGSTYLE;var BrowseInfo: TBrowseInfo; ItemIDList: PItemIDList; JtemIDList: PItemIDList; Path: PAnsiChar;begin Result := False; Path := StrAlloc(MAX_PATH); SHGetSpecialFolderLocation(Handle, CSIDL_DRIVES, JtemIDList); with BrowseInfo do begin hwndOwner := GetActiveWindow; pidlRoot := JtemIDList; SHGetSpecialFolderLocation(hwndOwner, CSIDL_DRIVES, JtemIDList); { return display name of item selected } pszDisplayName := StrAlloc(MAX_PATH); { set the title of dialog } lpszTitle := PChar(Caption);//'Select the folder'; { flags that control the return stuff } lpfn := @BrowseCallbackProc; { extra info that's passed back in callbacks } lParam := LongInt(PChar(strFolder)); end; ItemIDList := SHBrowseForFolder(BrowseInfo); if (ItemIDList <> nil) then if SHGetPathFromIDList(ItemIDList, Path) then begin strFolder := Path; Result := True end;end; For example, s := 'c:/Arch';if GetFolderDialog(Application.Handle, 'Select a folder', s) then ShowMessage('User selected this folder: ' + s)