if (Key==VK_RETURN)
{ if(LINK==1)
{
AnsiString cmmd=Memo1->Lines->Strings[Memo1->Lines->Count-1];
int len_cmmd=strlen(cmmd.c_str());
SendMessage(Memo1->Handle,WM_VSCROLL,SB_BOTTOM,0);
Memo1->SelStart=Memo1->Text.Length();
RS232Com1->Write(cmmd.c_str(),len_cmmd);
}
else ShowMessage("LINK is not available!");
}