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  #1499  
Старый 04.05.2008, 19:20
desTiny
Reservists Of Antichat - Level 6
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Сообщение от begin_end  
Ежели нужно получить результат работы именно консольного приложения, то может помочь следующая функция:
Код:
procedure ExecConsoleApp(CommandLine: AnsiString; Output: TStringList; Errors:
  TStringList);
var
  sa: TSECURITYATTRIBUTES;
  si: TSTARTUPINFO;
  pi: TPROCESSINFORMATION;
  hPipeOutputRead: THANDLE;
  hPipeOutputWrite: THANDLE;
  hPipeErrorsRead: THANDLE;
  hPipeErrorsWrite: THANDLE;
  Res, bTest: Boolean;
  env: array[0..100] of Char;
  szBuffer: array[0..256] of Char;
  dwNumberOfBytesRead: DWORD;
  Stream: TMemoryStream;
begin
  sa.nLength := sizeof(sa);
  sa.bInheritHandle := true;
  sa.lpSecurityDescriptor := nil;
  CreatePipe(hPipeOutputRead, hPipeOutputWrite, @sa, 0);
  CreatePipe(hPipeErrorsRead, hPipeErrorsWrite, @sa, 0);
  ZeroMemory(@env, SizeOf(env));
  ZeroMemory(@si, SizeOf(si));
  ZeroMemory(@pi, SizeOf(pi));
  si.cb := SizeOf(si);
  si.dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
  si.wShowWindow := SW_HIDE;
  si.hStdInput := 0;
  si.hStdOutput := hPipeOutputWrite;
  si.hStdError := hPipeErrorsWrite;

  (* Remember that if you want to execute an app with no parameters you nil the
    second parameter and use the first, you can also leave it as is with no
    problems.                                                                *)
  Res := CreateProcess(nil, pchar(CommandLine), nil, nil, true,
    CREATE_NEW_CONSOLE or NORMAL_PRIORITY_CLASS, @env, nil, si, pi);

  // Procedure will exit if CreateProcess fail
  if not Res then
  begin
    CloseHandle(hPipeOutputRead);
    CloseHandle(hPipeOutputWrite);
    CloseHandle(hPipeErrorsRead);
    CloseHandle(hPipeErrorsWrite);
    Exit;
  end;
  CloseHandle(hPipeOutputWrite);
  CloseHandle(hPipeErrorsWrite);

  //Read output pipe
  Stream := TMemoryStream.Create;
  try
    while true do
    begin
      bTest := ReadFile(hPipeOutputRead, szBuffer, 256, dwNumberOfBytesRead,
        nil);
      if not bTest then
      begin
        break;
      end;
      Stream.Write(szBuffer, dwNumberOfBytesRead);
    end;
    Stream.Position := 0;
    Output.LoadFromStream(Stream);
  finally
    Stream.Free;
  end;

  //Read error pipe
  Stream := TMemoryStream.Create;
  try
    while true do
    begin
      bTest := ReadFile(hPipeErrorsRead, szBuffer, 256, dwNumberOfBytesRead,
        nil);
      if not bTest then
      begin
        break;
      end;
      Stream.Write(szBuffer, dwNumberOfBytesRead);
    end;
    Stream.Position := 0;
    Errors.LoadFromStream(Stream);
  finally
    Stream.Free;
  end;

  WaitForSingleObject(pi.hProcess, INFINITE);
  CloseHandle(pi.hProcess);
  CloseHandle(hPipeOutputRead);
  CloseHandle(hPipeErrorsRead);
end;
Пример использования.
Я бы сделал этот участок по-другому:

Код:
  if not Res then
  begin
    CloseHandle(hPipeOutputRead);
    CloseHandle(hPipeOutputWrite);
    CloseHandle(hPipeErrorsRead);
    CloseHandle(hPipeErrorsWrite);
    Exit;
  end;
  CloseHandle(hPipeOutputWrite);
  CloseHandle(hPipeErrorsWrite);

Код:
procedure ExecConsoleApp(CommandLine: AnsiString; Output: TStringList; Errors:
  TStringList);
var
  sa: TSECURITYATTRIBUTES;
  si: TSTARTUPINFO;
  pi: TPROCESSINFORMATION;
  hPipeOutputRead: THANDLE;
  hPipeOutputWrite: THANDLE;
  hPipeErrorsRead: THANDLE;
  hPipeErrorsWrite: THANDLE;
  Res, bTest: Boolean;
  env: array[0..100] of Char;
  szBuffer: array[0..256] of Char;
  dwNumberOfBytesRead: DWORD;
  Stream: TMemoryStream;
begin
try
  sa.nLength := sizeof(sa);
  sa.bInheritHandle := true;
  sa.lpSecurityDescriptor := nil;
  CreatePipe(hPipeOutputRead, hPipeOutputWrite, @sa, 0);
  CreatePipe(hPipeErrorsRead, hPipeErrorsWrite, @sa, 0);
  ZeroMemory(@env, SizeOf(env));
  ZeroMemory(@si, SizeOf(si));
  ZeroMemory(@pi, SizeOf(pi));
  si.cb := SizeOf(si);
  si.dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
  si.wShowWindow := SW_HIDE;
  si.hStdInput := 0;
  si.hStdOutput := hPipeOutputWrite;
  si.hStdError := hPipeErrorsWrite;

  (* Remember that if you want to execute an app with no parameters you nil the
    second parameter and use the first, you can also leave it as is with no
    problems.                                                                *)
  Res := CreateProcess(nil, pchar(CommandLine), nil, nil, true,
    CREATE_NEW_CONSOLE or NORMAL_PRIORITY_CLASS, @env, nil, si, pi);

  // Procedure will exit if CreateProcess fail
  if not Res then
   raise;

  //Read output pipe
  Stream := TMemoryStream.Create;
  try
    while true do
    begin
      bTest := ReadFile(hPipeOutputRead, szBuffer, 256, dwNumberOfBytesRead,
        nil);
      if not bTest then
      begin
        break;
      end;
      Stream.Write(szBuffer, dwNumberOfBytesRead);
    end;
    Stream.Position := 0;
    Output.LoadFromStream(Stream);
  finally
    Stream.Free;
  end;

  //Read error pipe
  Stream := TMemoryStream.Create;
  try
    while true do
    begin
      bTest := ReadFile(hPipeErrorsRead, szBuffer, 256, dwNumberOfBytesRead,
        nil);
      if not bTest then
      begin
        break;
      end;
      Stream.Write(szBuffer, dwNumberOfBytesRead);
    end;
    Stream.Position := 0;
    Errors.LoadFromStream(Stream);
  finally
    Stream.Free;
  end;

  WaitForSingleObject(pi.hProcess, INFINITE);
finally
  CloseHandle(pi.hProcess);
  CloseHandle(hPipeOutputRead);
  CloseHandle(hPipeErrorsRead);
  CloseHandle(hPipeOutputWrite);
  CloseHandle(hPipeErrorsWrite);
end;
end;
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