Delphi监控文件系统更改以及运行命令行程序获得返回码和反馈信息

不打算把程序搞完了，代码记录一下来备忘

运行命令行程序获得返回码和反馈信息

//某些程序反馈信息是utf8的，需要转码
function AnsiToWide(const S: AnsiString): WideString;
var
  len: integer;
  ws: WideString;
begin
  Result:='';
  if (Length(S) = 0) then
    exit;
  len:=MultiByteToWideChar(CP_ACP, 0, PChar(s), -1, nil, 0);
  SetLength(ws, len);
  MultiByteToWideChar(CP_ACP, 0, PChar(s), -1, PWideChar(ws), len);
  Result:=ws;
end;
  
function WideToUTF8(const WS: WideString): UTF8String;
var
  len: integer;
  us: UTF8String;
begin
  Result:='';
  if (Length(WS) = 0) then
    exit;
  len:=WideCharToMultiByte(CP_UTF8, 0, PWideChar(WS), -1, nil, 0, nil, nil);
  SetLength(us, len);
  WideCharToMultiByte(CP_UTF8, 0, PWideChar(WS), -1, PChar(us), len, nil, nil);
  Result:=us;
end;
  
function AnsiToUTF8(const S: AnsiString): UTF8String;
begin
  Result:=WideToUTF8(AnsiToWide(S));
end;
  
function UTF8ToWide(const US: UTF8String): WideString;
var
  len: integer;
  ws: WideString;
begin
  Result:='';
  if (Length(US) = 0) then
    exit;
  len:=MultiByteToWideChar(CP_UTF8, 0, PChar(US), -1, nil, 0);
  SetLength(ws, len);
  MultiByteToWideChar(CP_UTF8, 0, PChar(US), -1, PWideChar(ws), len);
  Result:=ws;
end;
  
function WideToAnsi(const WS: WideString): AnsiString;
var
  len: integer;
  s: AnsiString;
begin
  Result:='';
  if (Length(WS) = 0) then
    exit;
  len:=WideCharToMultiByte(CP_ACP, 0, PWideChar(WS), -1, nil, 0, nil, nil);
  SetLength(s, len);
  WideCharToMultiByte(CP_ACP, 0, PWideChar(WS), -1, PChar(s), len, nil, nil);
  Result:=s;
end;

//运行命令行程序的
function GetRunConsoleResult(FileName:String;Visibility:Integer;var mOutputs:string):Integer;
var
  sa:TSecurityAttributes;
  hReadPipe,hWritePipe:THandle;
  ret:BOOL;
  strBuff:array[0..255] of char;
  lngBytesread:DWORD;

  WorkDir:String;
  StartupInfo:TStartupInfo;
  ProcessInfo:TProcessInformation;
begin
  FillChar(sa,Sizeof(sa),#0);
  sa.nLength := Sizeof(sa);
  sa.bInheritHandle := True;
  sa.lpSecurityDescriptor := nil;
  if not(CreatePipe(hReadPipe, hWritePipe, @sa, 0)) then
    begin
      Result:=-2;  //通道创建失败
    end;
  WorkDir:=ExtractFileDir(Application.ExeName);
  FillChar(StartupInfo,Sizeof(StartupInfo),#0);
  StartupInfo.cb:=Sizeof(StartupInfo);
  StartupInfo.dwFlags:=STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
  StartupInfo.wShowWindow:=Visibility;
 
  StartupInfo.hStdOutput:=hWritePipe;
  StartupInfo.hStdError:=hWritePipe;
 
  if not CreateProcess(nil,
    PChar(FileName),               { pointer to command line string }
    @sa,                           { pointer to process security attributes }
    @sa,                           { pointer to thread security attributes }
    True,                          { handle inheritance flag }
    NORMAL_PRIORITY_CLASS,
    nil,                           { pointer to new environment block }
    PChar(WorkDir),                { pointer to current directory name, PChar}
    StartupInfo,                   { pointer to STARTUPINFO }
    ProcessInfo)                   { pointer to PROCESS_INF }
  then
    Result := INFINITE {-1 进程创建失败}
  else
    begin
      CloseHandle(hWritePipe);
      mOutputs:='';
      while ret do
      begin
        FillChar(strBuff,Sizeof(strBuff),#0);
        ret := ReadFile(hReadPipe, strBuff, 256, lngBytesread, nil);
        mOutputs := mOutputs + strBuff;
      end;
 
      Application.ProcessMessages;
      //等待console结束
      WaitforSingleObject(ProcessInfo.hProcess, INFINITE);
      GetExitCodeProcess(ProcessInfo.hProcess,  Cardinal(Result));
      CloseHandle(ProcessInfo.hProcess);  { to prevent memory leaks }
      CloseHandle(ProcessInfo.hThread);
      CloseHandle(hReadPipe);
    end;
end;



//示例

var s,ftype:string;
i:integer;
t:tstringlist;
begin
i:=GetRunConsoleResult('rsync.exe',SW_HIDE,s);
label1.Caption:=inttostr(i);
s:=UTF8ToAnsi(s);  
//有些程序返回的换行符是#10，换成windows的#13#10  
s:=stringreplace(s,#10,#13#10,[rfreplaceall]);

监控文件系统更改

//声明部分
  const
SHCNE_RENAMEITEM = $1;
SHCNE_CREATE = $2;
SHCNE_DELETE = $4;
SHCNE_MKDIR = $8;
SHCNE_RMDIR = $10;
SHCNE_MEDIAINSERTED = $20;
SHCNE_MEDIAREMOVED = $40;
SHCNE_DRIVEREMOVED = $80;
SHCNE_DRIVEADD = $100;
SHCNE_NETSHARE = $200;
SHCNE_NETUNSHARE = $400;
SHCNE_ATTRIBUTES = $800;
SHCNE_UPDATEDIR = $1000;
SHCNE_UPDATEITEM = $2000;
SHCNE_SERVERDISCONNECT = $4000;
SHCNE_UPDATEIMAGE = $8000;
SHCNE_DRIVEADDGUI = $10000;
SHCNE_RENAMEFOLDER = $20000;
SHCNE_FREESPACE = $40000;
SHCNE_ASSOCCHANGED = $8000000;
SHCNE_DISKEVENTS = $2381F;
SHCNE_GLOBALEVENTS = $C0581E0;
SHCNE_ALLEVENTS = $7FFFFFFF;
SHCNE_INTERRUPT = $80000000;
SHCNF_IDLIST = 0;
// LPITEMIDLIST
SHCNF_PATHA = $1;
// path name
SHCNF_PRINTERA = $2;
// printer friendly name
SHCNF_DWORD = $3;
// DWORD
SHCNF_PATHW = $5;
// path name
SHCNF_PRINTERW = $6;
// printer friendly name
SHCNF_TYPE = $FF;
SHCNF_FLUSH = $1000;
SHCNF_FLUSHNOWAIT = $2000;
SHCNF_PATH = SHCNF_PATHW;
SHCNF_PRINTER = SHCNF_PRINTERW;
WM_SHNOTIFY = $401;
NOERROR = 0;


type PSHNOTIFYSTRUCT=^SHNOTIFYSTRUCT;
SHNOTIFYSTRUCT = record
dwItem1 : PItemIDList;
dwItem2 : PItemIDList;
end;
Type PSHFileInfoByte=^SHFileInfoByte;
_SHFileInfoByte = record
hIcon :Integer;
iIcon :Integer;
dwAttributes : Integer;
szDisplayName : array [0..259] of char;
szTypeName : array [0..79] of char;
end;
SHFileInfoByte=_SHFileInfoByte;
Type PIDLSTRUCT = ^IDLSTRUCT;
_IDLSTRUCT = record
pidl : PItemIDList;
bWatchSubFolders : Integer;
end;
IDLSTRUCT =_IDLSTRUCT;

function SHNotify_Register(hWnd : Integer) : Bool;
function SHNotify_UnRegister:Bool;
function SHEventName(strPath1,strPath2:string;lParam:Integer):string;
Function SHChangeNotifyDeregister(hNotify:integer):integer;stdcall;external 'Shell32.dll' index 4;
Function SHChangeNotifyRegister(hWnd,uFlags,dwEventID,uMSG,cItems:LongWord;lpps:PIDLSTRUCT):integer;stdcall;external 'Shell32.dll' index 2;
Function SHGetFileInfoPidl(pidl : PItemIDList;dwFileAttributes : Integer;psfib : PSHFILEINFOBYTE;cbFileInfo : Integer;uFlags : Integer):Integer;stdcall;external 'Shell32.dll' name 'SHGetFileInfoA';


  type

  UTF8String = AnsiString;
    function AnsiToWide(const S: AnsiString): WideString;

  function WideToUTF8(const WS: WideString): UTF8String;

  function AnsiToUTF8(const S: AnsiString): UTF8String;

  function UTF8ToWide(const US: UTF8String): WideString;

  function WideToAnsi(const WS: WideString): AnsiString;

  function UTF8ToAnsi(const S: UTF8String): AnsiString;
  
type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    Button2: TButton;
    RzPageControl1: TRzPageControl;
    TabSheet1: TRzTabSheet;
    TabSheet2: TRzTabSheet;
    TabSheet3: TRzTabSheet;
    RzMemo1: TRzMemo;
    RzCheckList1: TRzCheckList;
    RzSelectFolderDialog1: TRzSelectFolderDialog;
    Memo1: TMemo;
    RzGroupBox1: TRzGroupBox;
    RzCheckBox1: TRzCheckBox;
    RzCheckBox2: TRzCheckBox;
    RzSpinEdit1: TRzSpinEdit;
    RzCheckBox3: TRzCheckBox;
    RzLabel1: TRzLabel;
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
  procedure WMShellReg(var Message:TMessage);message WM_SHNOTIFY; { Public declarations }
    { Public declarations }
  end;

var
  Form1: TForm1;
  m_hSHNotify:Integer;
m_pidlDesktop : PItemIDList;

//函数部分

function SHEventName(strPath1,strPath2:string;lParam:Integer):string;
var
sEvent:String;
begin
case lParam of //根据参数设置提示消息
SHCNE_RENAMEITEM: sEvent := '重命名文件'+strPath1+'为'+strpath2;
SHCNE_CREATE: sEvent := '建立文件 文件名：'+strPath1;
SHCNE_DELETE: sEvent := '删除文件 文件名：'+strPath1;
SHCNE_MKDIR: sEvent := '新建目录 目录名：'+strPath1;
SHCNE_RMDIR: sEvent := '删除目录 目录名：'+strPath1;
SHCNE_MEDIAINSERTED: sEvent := strPath1+'中插入可移动存储介质';
SHCNE_MEDIAREMOVED: sEvent := strPath1+'中移去可移动存储介质'+strPath1+' '+strpath2;
SHCNE_DRIVEREMOVED: sEvent := '移去驱动器'+strPath1;
SHCNE_DRIVEADD: sEvent := '添加驱动器'+strPath1;
SHCNE_NETSHARE: sEvent := '改变目录'+strPath1+'的共享属性';

SHCNE_ATTRIBUTES: sEvent := '改变文件目录属性 文件名'+strPath1;
SHCNE_UPDATEDIR: sEvent := '更新目录'+strPath1;
SHCNE_UPDATEITEM: sEvent := '更新文件 文件名：'+strPath1;
SHCNE_SERVERDISCONNECT: sEvent := '断开与服务器的连接'+strPath1+' '+strpath2;
SHCNE_UPDATEIMAGE: sEvent := 'SHCNE_UPDATEIMAGE';
SHCNE_DRIVEADDGUI: sEvent := 'SHCNE_DRIVEADDGUI';
SHCNE_RENAMEFOLDER: sEvent := '重命名文件夹'+strPath1+'为'+strpath2;
SHCNE_FREESPACE: sEvent := '磁盘空间大小改变';
SHCNE_ASSOCCHANGED: sEvent := '改变文件关联';
else
sEvent:='未知操作'+IntToStr(lParam);
end;
Result:=sEvent;
end;

function SHNotify_Register(hWnd : Integer) : Bool;
var
ps: pidlstruct;
begin
{$R-}
result := false;
if m_hshnotify = 0 then begin
//获取桌面文件夹的pidl
if shgetspecialfolderlocation(0, CSIDL_DESKTOP, m_pidldesktop) <> noerror then
form1.close;
if boolean(m_pidldesktop) then begin
new(ps);
try
ps.bwatchsubfolders := 1;
ps.pidl := m_pidldesktop;

// 利用shchangenotifyregister函数注册系统消息处理
m_hshnotify := shchangenotifyregister(hwnd, (shcnf_type or shcnf_idlist),
(shcne_allevents or shcne_interrupt),
wm_shnotify, 1, ps);
result := boolean(m_hshnotify);
finally
FreeMem(ps);
end;
end
else
// 如果出现错误就使用 cotaskmemfree函数来释放句柄
cotaskmemfree(m_pidldesktop);
end;
{$R+}
end;

function SHNotify_UnRegister:Bool;
begin
Result:=False;
If Boolean(m_hSHNotify) Then
//取消系统消息监视，同时释放桌面的Pidl
If Boolean(SHChangeNotifyDeregister(m_hSHNotify)) Then begin
{$R-}
m_hSHNotify := 0;
CoTaskMemFree(m_pidlDesktop);
Result := True;
{$R-}
End;
end;

procedure TForm1.WMShellReg(var Message: TMessage);
//file://系统消息处理函数
var
strPath1,strPath2:String;
charPath:array[0..259]of char;
pidlItem:PSHNOTIFYSTRUCT;
begin
pidlItem:=PSHNOTIFYSTRUCT(Message.wParam);
//file://获得系统消息相关得路径
SHGetPathFromIDList(pidlItem.dwItem1,charPath);
strPath1:=charPath;
SHGetPathFromIDList(pidlItem.dwItem2,charPath);
strPath2:=charPath;
Memo1.Lines.Add(SHEvEntName(strPath1,strPath2,Message.lParam)+chr(13)+chr(10));
end;


//注册监控
procedure TForm1.Button2Click(Sender: TObject);
begin
m_hSHNotify:=0;
if SHNotify_Register(Form1.Handle) then begin //file://注册Shell监视
ShowMessage('Shell监视程序成功注册');
Button1.Enabled := False;
end
else
ShowMessage('Shell监视程序注册失败');
end;

//注销监控
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
//在程序退出的同时删除监视
if Boolean(m_pidlDesktop) then
SHNotify_Unregister;
end;