我在互联网上尝试了几个示例,但它们都无法正常工作 - 脚本没有执行 - (可能是因为它们适用于早于Delphi 2009的unicode版本?)。
我需要运行一些Python脚本并传递参数给它们,例如:
python "..\Plugins\RunPlugin.py" -a login -u Test -p test
将输出捕获为字符串,错误信息捕获到其他位置。
这是我现在所拥有的:
procedure RunDosInMemo(DosApp:String; var OutData: String);
var
SA: TSecurityAttributes;
SI: TStartupInfo;
PI: TProcessInformation;
StdOutPipeRead, StdOutPipeWrite: THandle;
WasOK: Boolean;
Buffer: array[0..255] of Char;
BytesRead: Cardinal;
WorkDir: string;
Handle: Boolean;
begin
OutData := '';
with SA do begin
nLength := SizeOf(SA);
bInheritHandle := True;
lpSecurityDescriptor := nil;
end;
CreatePipe(StdOutPipeRead, StdOutPipeWrite, @SA, 0);
try
with SI do
begin
FillChar(SI, SizeOf(SI), 0);
cb := SizeOf(SI);
dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES or CREATE_UNICODE_ENVIRONMENT;
wShowWindow := SW_HIDE;
hStdInput := GetStdHandle(STD_INPUT_HANDLE); // don't redirect stdin
hStdOutput := StdOutPipeWrite;
hStdError := StdOutPipeWrite;
end;
WorkDir := 'C:\';
Handle := CreateProcess(nil, PChar(DosApp),
nil, nil, True, 0, nil,
PChar(WorkDir), SI, PI);
CloseHandle(StdOutPipeWrite);
if Handle then
begin
try
repeat
WasOK := ReadFile(StdOutPipeRead, Buffer, 255, BytesRead, nil);
if BytesRead > 0 then
begin
Buffer[BytesRead] := #0;
OutData := OutData + String(Buffer);
end;
until not WasOK or (BytesRead = 0);
WaitForSingleObject(PI.hProcess, INFINITE);
finally
CloseHandle(PI.hThread);
CloseHandle(PI.hProcess);
end;
end else begin
raise Exception.Create('Failed to load python plugin');
end;
finally
CloseHandle(StdOutPipeRead);
end;
end;