是否是用管道?CreatePipe如何实现这个功能?

解决方案 »

  1.   

    参考 CSDN 以前的帖子,或者在 MSDN 里查找这个标题:
    "Creating a Child Process with Redirected Input and Output"
      

  2.   

    一个DELPHI的例子
    例子:运行 'chkdsk.exe c:\' 并且 显示其输出结果到 Memo 中! 
    procedure RunDosInMemo(DosApp:String;AMemo:TMemo);
    const ReadBuffer = 2400; 
    var
    Security : TSecurityAttributes;
    ReadPipe,WritePipe : THandle;
    start : TStartUpInfo;
    ProcessInfo : TProcessInformation;
    Buffer : Pchar;
    BytesRead : DWord;
    Apprunning : DWord;
    begin
    With Security do
    begin
    nlength := SizeOf(TSecurityAttributes);
    binherithandle := true;
    lpsecuritydescriptor := nil;
    end;
    if Createpipe (ReadPipe, WritePipe, @Security, 0) then
    begin
    Buffer := AllocMem(ReadBuffer + 1);
    FillChar(Start,Sizeof(Start),#0);
    start.cb := SizeOf(start);
    start.hStdOutput := WritePipe;
    start.hStdInput := ReadPipe;
    start.dwFlags := STARTF_USESTDHANDLES + STARTF_USESHOWWINDOW;
    start.wShowWindow := SW_HIDE;
    if CreateProcess(nil,PChar(DosApp),@Security,@Security,true,NORMAL_PRIORITY_CLASS,
    nil,nil,start,ProcessInfo) then
    begin
    repeat
    Apprunning := WaitForSingleObject(ProcessInfo.hProcess,100);
    Application.ProcessMessages;
    until (Apprunning <> WAIT_TIMEOUT);
    Repeat
    BytesRead := 0;
    ReadFile(ReadPipe,Buffer[0],ReadBuffer,BytesRead,nil);
    Buffer[BytesRead]:= #0;
    OemToAnsi(Buffer,Buffer);
    AMemo.Text := AMemo.text + String(Buffer);
    until (BytesRead < ReadBuffer);
    end;
    FreeMem(Buffer);
    CloseHandle(ProcessInfo.hProcess);
    CloseHandle(ProcessInfo.hThread);
    CloseHandle(ReadPipe);
    CloseHandle(WritePipe);
    end;
    end;调用实例:RunDosInMemo('chkdsk.exe c:\',Memo1);