title: Qt launch cmd.exe
body: <p>I want to start <code>cmd.exe</code> with <code>QProcess</code> without <code>startDetached</code> because I need to interact with the running cmd. and the cmd has to be in forground.  and I want to get <code>readyRead()</code> once the first process completes and then I'll do some other tasks, like showing some message box or launching another cmd.exe or executing another command in that cmd window. But the cmd window must be visible to user.</p>