用CreateProcess读取Console程序的显示信息和返…

unit Unit1;

interface

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

type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
OpenDialog1: TOpenDialog;
Button2: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }

function WinExecAndWait32(FileName:String;Visibility:Integer;var mOutputs:string):Cardinal;
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}
function TForm1.WinExecAndWait32(FileName:String;Visibility:Integer;var mOutputs:string):Cardinal;
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;
ret := CreatePipe(hReadPipe, hWritePipe, @sa, 0);

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 }
// CREATE_NEW_CONSOLE or { creation flags }
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} else
begin
// Form1.Hide;
// FileOpen(FileName,fmShareExclusive);
// SetWindowLong(Application.Handle,GWL_EXSTYLE,WS_EX_TOOLWINDOW);
ret:=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;
WaitforSingleObject(ProcessInfo.hProcess, INFINITE);
GetExitCodeProcess(ProcessInfo.hProcess, Result);
CloseHandle(ProcessInfo.hProcess); { to prevent memory leaks }
CloseHandle(ProcessInfo.hThread);
// Form1.Close; { exit application }
ret := CloseHandle(hReadPipe);
end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
Val:Cardinal;
mOutputs:string;
i:integer;
begin
Val:=WinExecAndWait32(Edit1.Text,SW_SHOWNORMAL,mOutputs);
Memo1.Lines.Add(''''******Result******'''' #13#10 IntToStr(Val));
i:=1;
while i<=length(mOutputs) do
begin
if mOutputs[i]=#10 then
begin
Insert(#13,mOutputs,i);
i:=i 2;
end
else
Inc(i);
end;
Memo1.Lines.Add(''''******Echo******'''' #13#10 mOutputs);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
OpenDialog1.InitialDir:=ExtractFilePath(ParamStr(0));
if OpenDialog1.Execute then
Edit1.Text:=Opendialog1.FileName;
end;

end.

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