delphi 搜索文件findfirstfile,findnextfile,findclose函数

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
    ListBox1: TListBox;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
private
    { Private declarations }
public
    { Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

var
pathstr:PChar;
fddata:TWin32FindData;
hd:THANDLE;
br:Bool;
EC:DWORD=0;

procedure TForm1.Button1Click(Sender: TObject);
begin
pathstr:='c:\windows\system32\*.dll';
hd:=FindFirstFile(pathstr,fddata);
while ( (hd<>INVALID_HANDLE_VALUE) and (EC<>ERROR_NO_MORE_FILES) ) do
begin
    if ( fddata.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY )then
      //if ((string(fddata.cFileName)<>'.') and (string(fddata.cFileName)<>'..')) then begin strcat() ...end;
      begin
        //never used
        br:=FindNextFile(hd,fddata);
        EC:=GetLastError();
      end
    else
      begin
        Listbox1.Items.Add(string(fddata.cFileName));
        br:=FindNextFile(hd,fddata);
        EC:=GetLastError();
      end;
end;
windows.FindClose(hd);
end;

end.

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运行如图: