Delphi 显示选择文件夹对话框 (有新建按钮)

Delphi 显示选择文件夹对话框 (有新建按钮) 附实例

uses ShlObj
选择文件夹对话框。
入口参数:
Handle:调用者句柄
Caption:对话框标题
InitFolder:初始文件夹;
SelectedFolder:返回选择结果
返回值:
如果用户选择了路径并确定,返回True。并由SelectedFolder返回选择结果。否则返回False}

截图:

Delphi 显示选择文件夹对话框 (有新建按钮)_第1张图片

function SelectFolderDialog(const Handle:integer;const Caption:string;
              const InitFolder:string;var SelectedFolder:string):boolean;
var
BInfo: _browseinfoA;
Buffer: array[0..MAX_PATH] of Char;
ID: IShellFolder;
Eaten, Attribute: Cardinal;
ItemID: PItemidlist;
begin
with BInfo do
begin
     HwndOwner := Handle;
     lpfn := nil;
     lpszTitle := Pchar(Caption);
     ulFlags := BIF_RETURNONLYFSDIRS+BIF_NEWDIALOGSTYLE;
     SHGetDesktopFolder(ID);
     ID.ParseDisplayName(0,nil,'\',Eaten,ItemID,Attribute);
     pidlRoot := ItemID;
     GetMem(pszDisplayName, MAX_PATH);
end;

FreeMem(pszDisplayName);
if SHGetPathFromIDList(SHBrowseForFolder(BInfo), Buffer) then
begin
     SelectedFolder := Buffer;
    if Length(SelectedFolder)<>3 then
       SelectedFolder := SelectedFolder;
     result := True;
end
else begin
     SelectedFolder := '';
     result := False;
end;
end;

//=====================================================

调用方法:

procedure TForm1.Button1Click(Sender: TObject);
var
NewDir:string;
begin
if    SelectFolderDialog(Handle,'选择','C:\',NewDir)   then
           label1.Caption:=NewDir;
end;


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