QProcess调用外部程序不显示界面

include <Windows.h>
    QString program = "C:/Windows/System32/notepad.exe";
    QProcess *myProcess = new QProcess();
    myProcess->setCreateProcessArgumentsModifier([](QProcess::CreateProcessArguments *args)
    {
        args->startupInfo->wShowWindow = SW_HIDE;
        args->startupInfo->dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
    }
    );
    myProcess->start(program, QStringList());

 第二种方法

QString program = "C:/Windows/System32/notepad.exe";

STARTUPINFO si;
PROCESS_INFORMATION pi;
si.cb = sizeof(STARTUPINFO);
GetStartupInfo(&si);
si.wShowWindow = SW_HIDE;
si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;

if (!CreateProcess(NULL, (LPWSTR)program.utf16(),NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi))
{

}

今天在项目内遇到的问题，需要调用外部程序，但不能显示此程序界面，在网上找了一下，调试出这两种方法。