Hi.
I have application for compressing diffrent folders on my network (I use
external program 7-zip: 7z.exe) and the problem is whenever I execute 7-zip
with function:
{This function runs a program (console or batch) and adds its output to
Memo1}
function TfArhiva.RunProgAndCaptureOutput(const _dirName, _exeName,
_cmdLine: string;povratni_info:TStrings): Boolean;
var
start: TStartupInfo;
procInfo: TProcessInformation;
tmpName: string;
tmp: Windows.THandle;
tmpSec: TSecurityAttributes;
res: TStringList;
return: Cardinal;
begin
povratni_info.Clear;
Result := False;
try
{ Setze ein Temporäres File }
{ Set a temporary file }
tmpName := 'Test.tmp';
FillChar(tmpSec, SizeOf(tmpSec), #0);
tmpSec.nLength := SizeOf(tmpSec);
tmpSec.bInheritHandle := True;
tmp := Windows.CreateFile(PChar(tmpName),
Generic_Write, File_Share_Write,
@tmpSec, Create_Always, File_Attribute_Normal, 0);
try
FillChar(start, SizeOf(start), #0);
start.cb := SizeOf(start);
start.hStdOutput := tmp;
start.dwFlags := StartF_UseStdHandles or StartF_UseShowWindow;
//start.wShowWindow := SW_Minimize;
Start.wShowWindow := SW_HIDE;
{ Starte das Programm }
{ Start the program }
if CreateProcess(nil, PChar(_exeName + ' ' + _cmdLine), nil, nil,
True,
0, nil, PChar(_dirName), start, procInfo) then
begin
SetPriorityClass(procInfo.hProcess, Idle_Priority_Class);
WaitForSingleObject(procInfo.hProcess, Infinite);
GetExitCodeProcess(procInfo.hProcess, return);
Result := (return = 0);
CloseHandle(procInfo.hThread);
CloseHandle(procInfo.hProcess);
Windows.CloseHandle(tmp);
{ Die Ausgaben hinzufügen }
{ Add the output }
res := TStringList.Create;
try
res.LoadFromFile(tmpName);
povratni_info.AddStrings(res);
finally
res.Free;
end;
Windows.DeleteFile(PChar(tmpName));
end
else
begin
Application.MessageBox(PChar(SysErrorMessage(GetLastError())),
'RunCaptured Error', MB_OK);
end;
except
Windows.CloseHandle(tmp);
Windows.DeleteFile(PChar(tmpName));
raise;
end;
finally
end;
end;
The application >freezes< until 7-zip is done.
How could I prevent this >freezing<??????
Thanx all.
Aris.
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