WxWidgets Process

#include <wx/process.h>
#include <wx/txtstrm.h>

...

wxProcess *process = wxProcess::Open(wxT("nc localhost 3000"));
if ( !process ) {
    wxLogError(wxT("Failed to launch the command."));
    return false;
}

wxTextOutputStream out(*(process->GetOutputStream()));
out << "hi there" << endl;

process->Kill(process->GetPid(), wxSIGQUIT);