如何初始化modem?
用delphi如何写modem初始话程序?
另有程序如下:为modem拨号程序,为什么波不出号?
请各位大虾检查一下,不胜感激。
var
hCommFile : THandle;
procedure TForm1.Button1Click(Sender: TObject);
var
PhoneNumber : string;
CommPort : string;
NumberWritten : dword;
begin
PhoneNumber := 'ATDT 1-555-555-1212' + #13 + #10;
CommPort := 'COM2';
{Open the comm port}
hCommFile := CreateFile(PChar(CommPort),
GENERIC_WRITE,
0,
nil,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
0);
if hCommFile=INVALID_HANDLE_VALUE then
begin
ShowMessage('Unable to open '+ CommPort);
exit;
end;
{Dial the phone}
NumberWritten:=0;
if WriteFile(hCommFile,
PChar(PhoneNumber)^,
Length(PhoneNumber),
NumberWritten,
nil) = false then begin
ShowMessage('Unable to write to ' + CommPort);
end;
end;