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;
(* got it from yahoo groups, so no copyrights for this piece :p and and example
of how to use it. put a button and a memo to a form. *)
procedure TForm1.Button1Click(Sender: TObject);
var
OutP: TStringList;
ErrorP: TStringList;
begin
OutP := TStringList.Create;
ErrorP := TstringList.Create;
ExecConsoleApp('ping localhost', OutP, ErrorP);
Memo1.Lines.Assign(OutP);
OutP.Free;
ErrorP.Free;
end;
|
CreateProcess, который возвращает консольный вывод
