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问题描述
我有BAT文件,使一些操作。如何运行德尔福该文件,并等待,直到它停止。
这样的事情:
程序TForm1.Button1Click(发件人:TObject的);
开始
//开始BAT文件
喇嘛喇嘛喇嘛
showmessage('完成');
结束;
解决方案
这执行由命令行启动程序给定的命令行,并等待退出。如果程序返回零退出code,如果程序无法启动虚假或返回一个非零的错误code,则返回true。
函数ExecAndWait(常量的CommandLine:字符串):布尔;
VAR
STARTUPINFO:Windows.TStartupInfo; //启动传递到处理信息
ProcessInfo:Windows.TProcessInformation; //有关过程信息
ProcessExit code:Windows.DWord; //进程的退出code
开始
//设置默认错误结果
结果:= FALSE;
//初始化启动信息结构为0,并且记录长度
FillChar(STARTUPINFO,一下SizeOf(STARTUPINFO),0);
StartupInfo.cb:=一下SizeOf(STARTUPINFO);
//执行应用程序的命令行
如果Windows.CreateProcess(零,PChar类型(的CommandLine)
零,零,FALSE,0,零,零,
STARTUPINFO,ProcessInfo),那么
开始
尝试
//现在等待应用程序以完成
如果Windows.WaitForSingleObject(ProcessInfo.hProcess,INFINITE)
=然后WAIT_OBJECT_0
//它完成了 - 获得其退出code
如果Windows.GetExit codeProcess(ProcessInfo.hProcess,
ProcessExit code),然后
//检查出code是零= GT;成功完成
如果ProcessExit code = 0,则
结果:= TRUE;
最后
// 整理
Windows.CloseHandle(ProcessInfo.hProcess);
Windows.CloseHandle(ProcessInfo.hThread);
结束;
结束;
结束;
从:
I have bat-file, that make some operations. How to run this file from Delphi and wait, until it stops.Something like that:
procedure TForm1.Button1Click(Sender: TObject);
begin
//Starting bat-file
bla-bla-bla
showmessage('Done');
end;
解决方案
This executes the given command line and waits for the program started by the command line to exit. Returns true if the program returns a zero exit code and false if the program doesn't start or returns a non-zero error code.
function ExecAndWait(const CommandLine: string) : Boolean;
var
StartupInfo: Windows.TStartupInfo; // start-up info passed to process
ProcessInfo: Windows.TProcessInformation; // info about the process
ProcessExitCode: Windows.DWord; // process's exit code
begin
// Set default error result
Result := False;
// Initialise startup info structure to 0, and record length
FillChar(StartupInfo, SizeOf(StartupInfo), 0);
StartupInfo.cb := SizeOf(StartupInfo);
// Execute application commandline
if Windows.CreateProcess(nil, PChar(CommandLine),
nil, nil, False, 0, nil, nil,
StartupInfo, ProcessInfo) then
begin
try
// Now wait for application to complete
if Windows.WaitForSingleObject(ProcessInfo.hProcess, INFINITE)
= WAIT_OBJECT_0 then
// It's completed - get its exit code
if Windows.GetExitCodeProcess(ProcessInfo.hProcess,
ProcessExitCode) then
// Check exit code is zero => successful completion
if ProcessExitCode = 0 then
Result := True;
finally
// Tidy up
Windows.CloseHandle(ProcessInfo.hProcess);
Windows.CloseHandle(ProcessInfo.hThread);
end;
end;
end;
From: http://www.delphidabbler.com/codesnip?action=named&showsrc=1&routines=ExecAndWait
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