<div>
Hi Jaime, 
 
I did try this code &quot;WriteFile&quot; in Window98, it is working, but in Windows 2000 and Windows XP it is not working! 
 
Do you have any idea? 
 
Fox404
</div>

Hi Jaime,

I did try this code "WriteFile" in Window98, it is working, but in Windows 2000 and Windows XP it is not working!

Do you have any idea?

Fox404

<div>
serial programming in Win2000/NT/XP is quiet different from Win98 
Have a look to this ready made serial objects, and related articles: 
<a href="http://www.codeproject.com/system/serial.asp" rel="ugc">http://www.codeproject.com/system/serial.asp</a> 
<a href="http://www.codeproject.com/system/chaiyasit_t.asp" rel="ugc">http://www.codeproject.com/system/chaiyasit_t.asp</a> 
<a href="http://www.codeproject.com/system/simpleserialcomm.asp" rel="ugc">http://www.codeproject.com/system/simpleserialcomm.asp</a> 
<a href="http://www.codeproject.com/system/cserialcom.asp" rel="ugc">http://www.codeproject.com/system/cserialcom.asp</a> 
<a href="http://www.codeproject.com/system/serial_com.asp" rel="ugc">http://www.codeproject.com/system/serial_com.asp</a> 
<a href="http://www.codeproject.com/system/cserialport.asp" rel="ugc">http://www.codeproject.com/system/cserialport.asp</a> 
<a href="http://www.codeproject.com/internet/tserial_event.asp" rel="ugc">http://www.codeproject.com/internet/tserial_event.asp</a> 

</div>

serial programming in Win2000/NT/XP is quiet different from Win98
Have a look to this ready made serial objects, and related articles:
http://www.codeproject.com/system/serial.asp [http://www.codeproject.com/system/serial.asp]
http://www.codeproject.com/system/chaiyasit_t.asp [http://www.codeproject.com/system/chaiyasit_t.asp]
http://www.codeproject.com/system/simpleserialcomm.asp [http://www.codeproject.com/system/simpleserialcomm.asp]
http://www.codeproject.com/system/cserialcom.asp [http://www.codeproject.com/system/cserialcom.asp]
http://www.codeproject.com/system/serial_com.asp [http://www.codeproject.com/system/serial_com.asp]
http://www.codeproject.com/system/cserialport.asp [http://www.codeproject.com/system/cserialport.asp]
http://www.codeproject.com/internet/tserial_event.asp [http://www.codeproject.com/internet/tserial_event.asp]


<div>
<div class="content wysiwyg-content">
Hi All, 
 
Below is the extract of code for dialing to a server using a modem. It is working fine in Win98 but not in Win2000 and XP. 
 
The modem returns a string “Error”. 
 
&nbsp; 
 
CString m_ServerNum = “9,64809988”; 
 
CString serverCmd = &quot;ATV1Q0DT&quot;; 
 
serverCmd = serverCmd+m_ServerNum; 
 
serverCmd.Insert(serverCmd.GetLength(),13); 
 
UINT len = serverCmd.GetLength(); 
 
char* StartupStr = (LPTSTR)serverCmd.GetBuffer(len); 
 
&nbsp; 
 
if (!::WriteFile (hPort, StartupStr, len, &amp;BytesWritten, NULL)) 
 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return ERROR; 
 

</div>
</div>

Hi All,

Below is the extract of code for dialing to a server using a modem. It is working fine in Win98 but not in Win2000 and XP.

The modem returns a string “Error”. 

 

CString m_ServerNum = “9,64809988”;

CString serverCmd = "ATV1Q0DT";

serverCmd = serverCmd+m_ServerNum;

serverCmd.Insert(serverCmd.GetLength(),13);

UINT len = serverCmd.GetLength();

char* StartupStr = (LPTSTR)serverCmd.GetBuffer(len);

 

if (!::WriteFile (hPort, StartupStr, len, &BytesWritten, NULL))

            return ERROR;



Code for dialing to a server using a modem

Microsoft Visual C++ (often abbreviated as MSVC or VC++) is an integrated development environment (IDE) product from Microsoft for the C, C++, and C++/CLI programming languages. It features tools for developing and debugging C++ code, especially code written for the Microsoft Windows API, the DirectX API, and the Microsoft .NET Framework. Many applications require redistributable Visual C++ packages to function correctly and are often installed independently of applications, allowing multiple applications to make use of the package while only having to install it once