软件下载 | 资讯教程 | 最近更新 | 下载排行 | 一键转帖 | 发布投稿
您的位置:最火下载站 > 电脑教程 > 编程开发 > delphi编程 > Delphi代码:调用Cmd并取得输出字符

Delphi代码:调用Cmd并取得输出字符

最近想做个调用CMD命令并取得结果的程序·,使用方法也很简单···就是调用Function;找了一下,·共享代码

procedure CheckResult(b: Boolean);
begin
if not b then
raise Exception.Create(SysErrorMessage(GetLastError));
end;

function RunDOS(const CommandLine: string): string;
var
HRead, HWrite: THandle;
StartInfo: TStartupInfo;
ProceInfo: TProcessInformation;
b: Boolean;
sa: TSecurityAttributes;
inS: THandleStream;
sRet: TStrings;
begin
Result := '';
FillChar(sa, sizeof(sa), 0);
//设置允许继承,否则在NT和2000下无法取得输出结果
sa.nLength := sizeof(sa);
sa.bInheritHandle := True;
sa.lpSecurityDescriptor := nil;
b := CreatePipe(HRead, HWrite, @sa, 0);
CheckResult(b);

FillChar(StartInfo, SizeOf(StartInfo), 0);
StartInfo.cb := SizeOf(StartInfo);
StartInfo.wShowWindow := SW_HIDE;
//使用指定的句柄作为标准输入输出的文件句柄,使用指定的显示方式
StartInfo.dwFlags := STARTF_USESTDHANDLES or STARTF_USESHOWWINDOW;
StartInfo.hStdError := HWrite;
StartInfo.hStdInput := GetStdHandle(STD_INPUT_HANDLE); //HRead;
StartInfo.hStdOutput := HWrite;

b := CreateProcess(nil, //lpApplicationName: PChar
PChar(CommandLine), //lpCommandLine: PChar
nil, //lpProcessAttributes: PSecurityAttributes
nil, //lpThreadAttributes: PSecurityAttributes
True, //bInheritHandles: BOOL
CREATE_NEW_CONSOLE,
nil,
nil,
StartInfo,
ProceInfo);

CheckResult(b);
WaitForSingleObject(ProceInfo.hProcess, INFINITE);

inS := THandleStream.Create(HRead);
if inS.Size > 0 then
begin
sRet := TStringList.Create;
sRet.LoadFromStream(inS);
Result := sRet.Text;
sRet.Free;
end;
inS.Free;

CloseHandle(HRead);
CloseHandle(HWrite);
end;
    相关阅读
    栏目导航
    推荐软件