哪位大侠能否贴一下使用Spcomm串口控件的例程?

Question

哪位大侠能否贴一下使用Spcomm串口控件的例程?

Answer 1

我以前编过一个用spcom的程序,但太大了,只好断章取义截取几段关键部分,
供你参考。OK?!
 //串口初始化
procedure TForm1.BitBtn3Click(Sender: TObject);
begin
   comm1.startcomm;
end;
  //关闭串口
procedure TForm1.BitBtn4Click(Sender: TObject);
begin
   comm1.StopComm;
end;
//发送数据
procedure TForm1.BitBtn1Click(Sender: TObject);{var str:string;
    ch1:char;
begin
comm1.WriteCommData(ch,1);
end.
//接收数据
procedure TForm1.Comm1ReceiveData(Sender: TObject; Buffer: Pointer;
  BufferLength: Word);
type   ss=array[1..500]of char ;
var    str1:^ss;
       i:integer;
       s:array[0..15] of char ;
       n:integer;
begin
       str1:=Buffer;
     //s[]=('0','1','2','3'...'E')
       for i:=0 to 9 do
       s[i]:=chr(48+i);
       for i:=10 to 15 do
       s[i]:=chr(55+i);
       for i:=1 to bufferlength do
       begin
       n:=ord(str1^[i]);
       listbox1.Items.add(
                 inttostr(listbox1.Items.Count+1)
                 +' - '+s[n div 16]+s[n mod 16]);
       end;
       listbox1.Refresh;
      if listbox1.Items.count > strtoint(form2.edit1.text)
      then listbox1.Items.Clear;
end;