本文实现了在Delphi中运行控制台程序,并将控制台程序的输出在Memo控件中显示出来。
工作中需要手工编译J2ME的程序,开始编写了一个批处理程序,但是感觉使用中非常繁琐,于是想用Delphi做一个集成编译工具,但是java的编译工具都是console程序,怎么捕获到console程序的输出,并显示在Memo中呢,查了网上的一些资料,反复测试,找到了一个实现的方法,希望对大家有帮助:
PRocedure TMainForm.RunDosInMemo(const DosApp: string; AMemo: TMemo);
const
{设置ReadBuffer的大小}
ReadBuffer = 2400;
var
Security: TSecurityAttributes;
ReadPipe, WritePipe: THandle;
start: TStartUpInfo;
ProcessInfo: TProcessInformation;
Buffer: PChar;
BytesRead: DWord;
Buf: string;
begin
with Security do
begin
nlength := SizeOf(TSecurityAttributes);
binherithandle := true;
lpsecuritydescriptor := nil;
end;
{创建一个命名管道用来捕获console程序的输出}
if Createpipe(ReadPipe, WritePipe, @Security, 0) then
begin
Buffer := AllocMem(ReadBuffer + 1);
FillChar(Start, Sizeof(Start), #0)
{设置console程序的启动属性}
with start do
begin
cb := SizeOf(start);
start.lpReserved := nil;
lpDesktop := nil;
lpTitle := nil;
dwX := 0;
dwY := 0;
dwXSize := 0;
dwYSize := 0;
dwXCountChars := 0;
dwYCountChars := 0;
dwFillAttribute := 0;
cbReserved2 := 0;
lpReserved2 := nil;
hStdOutput := WritePipe; //将输出定向到我们建立的WritePipe上
hStdInput := ReadPipe; //将输入定向到我们建立的ReadPipe上
hStdError := WritePipe;//将错误输出定向到我们建立的WritePipe上
dwFlags := STARTF_USESTDHANDLES or STARTF_USESHOWWINDOW;
wShowWindow := SW_HIDE;//设置窗口为hide
end;
try
{创建一个子进程,运行console程序}
if CreateProcess(nil, PChar(DosApp), @Security, @Security, true,
NORMAL_PRIORITY_CLASS,
nil, nil, start, ProcessInfo) then
begin
{等待进程运行结束}
WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
{关闭输出...开始没有关掉它,结果如果没有输出的话,程序死掉了。}
CloseHandle(WritePipe);
Buf := '';
{读取console程序的输出}
repeat
BytesRead := 0;
ReadFile(ReadPipe, Buffer[0], ReadBuffer, BytesRead, nil);
Buffer[BytesRead] := #0;
OemToAnsi(Buffer, Buffer);
Buf := Buf + string(Buffer);
until (BytesRead < ReadBuffer);
SendDebug(Buf);
{按照换行符进行分割,并在Memo中显示出来}
while pos(#10, Buf) > 0 do
begin
AMemo.Lines.Add(Copy(Buf, 1, pos(#10, Buf) - 1));
Delete(Buf, 1, pos(#10, Buf));
end;
end;
finally
FreeMem(Buffer);
CloseHandle(ProcessInfo.hProcess);
CloseHandle(ProcessInfo.hThread);
CloseHandle(ReadPipe);
end;
end;
end;
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