Using kernel32.dll for serial port connection   

Hi everybody,
   I am new in creating serial port connection. How do you create a serial 
port connection using this following api functions? I will use this serail 
port connection to communicate with a gprs modem operating in Widnows XP 
Embedded. Can you provide some simple codes, the serial port is fixed. I used 
C# and VB.Net.

[DllImport("kernel32.dll")]

private static extern Boolean GetCommProperties(IntPtr hFile, out COMMPROP 
cp);

[DllImport("kernel32.dll")]

private static extern Boolean GetCommModemStatus(IntPtr hFile, out UInt32 
lpModemStat);

[DllImport("kernel32.dll")]

private static extern Boolean GetCommState(IntPtr hFile, ref DCB lpDCB);

[DllImport("kernel32.dll")]

private static extern Boolean SetCommState(IntPtr hFile, [In] ref DCB lpDCB);

[DllImport("kernel32.dll", SetLastError=true)]

private static extern IntPtr CreateFile(String lpFileName, UInt32 
dwDesiredAccess, UInt32 dwShareMode, IntPtr lpSecurityAttributes, UInt32 
dwCreationDisposition, UInt32 dwFlagsAndAttributes, IntPtr hTemplateFile);

[DllImport("kernel32.dll")]

private static extern Boolean CloseHandle(IntPtr hObject);

[DllImport("kernel32.dll", SetLastError=true)]

private static extern Boolean ReadFile(IntPtr hFile, [Out] Byte[] lpBuffer, 
UInt32 nNumberOfBytesToRead, out UInt32 nNumberOfBytesRead, IntPtr 
lpOverlapped);

[DllImport("kernel32.dll", SetLastError=true)]

private static extern Boolean WriteFile(IntPtr fFile, Byte[] lpBuffer, 
UInt32 nNumberOfBytesToWrite, out UInt32 lpNumberOfBytesWritten, IntPtr 
lpOverlapped);

[DllImport("kernel32.dll")]

private static extern Boolean CancelIo(IntPtr hFile);

[DllImport("kernel32.dll")]

private static extern Boolean TransmitCommChar(IntPtr hFile, Byte cChar);

[DllImport("kernel32.dll")]

internal static extern Boolean SetupComm(IntPtr hFile, UInt32 dwInQueue, 
UInt32 dwOutQueue);

den2005
-- 
MCP Year 2005, Philippines

date: Thu, 22 Dec 2005 22:37:01 -0800   author:   den 2005

Re: Using kernel32.dll for serial port connection   

den 2005 wrote:

> Hi everybody,
>    I am new in creating serial port connection. How do you create a serial 
> port connection using this following api functions? I will use this serail 
> port connection to communicate with a gprs modem operating in Widnows XP 
> Embedded. Can you provide some simple codes, the serial port is fixed. I used 
> C# and VB.Net.

This has nothing to do with DirectPlay, so it is the wrong group for this 
question. Please ask in a C# and/or .net group.

-- 
Phil Frisbie, Jr.
Hawk Software
http://www.hawksoft.com

date: Fri, 23 Dec 2005 09:30:21 -0800   author:   Phil Frisbie, Jr.

Re: Using kernel32.dll for serial port connection   

Hi Phil,
  Do you know anything about how to change the Brightness of a Monitor (LCD 
or not)? Uisng api or otehr methods?

dennis
-- 
MCP Year 2005, Philippines


"Phil Frisbie, Jr." wrote:

> den 2005 wrote:
> 
> > Hi everybody,
> >    I am new in creating serial port connection. How do you create a serial 
> > port connection using this following api functions? I will use this serail 
> > port connection to communicate with a gprs modem operating in Widnows XP 
> > Embedded. Can you provide some simple codes, the serial port is fixed. I used 
> > C# and VB.Net.
> 
> This has nothing to do with DirectPlay, so it is the wrong group for this 
> question. Please ask in a C# and/or .net group.
> 
> -- 
> Phil Frisbie, Jr.
> Hawk Software
> http://www.hawksoft.com
>

date: Mon, 26 Dec 2005 18:26:01 -0800   author:   den 2005

Re: Using kernel32.dll for serial port connection   

den 2005 wrote:

> Hi Phil,
>   Do you know anything about how to change the Brightness of a Monitor (LCD 
> or not)? Uisng api or otehr methods?

Still the wrong group!

-- 
Phil Frisbie, Jr.
Hawk Software
http://www.hawksoft.com

date: Tue, 27 Dec 2005 08:39:40 -0800   author:   Phil Frisbie, Jr.