Connection to GPRS with P/Invoke

H

hassanmushtaq

hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.

public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();

static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}

~GPRSConnection()
{
ReleaseAll();
}

public static bool Setup(Uri url)
{
return Setup(url.ToString());
}

public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;

if (ht[urlStr] != null)
return true;

if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;

ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;

if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;

ht[urlStr] = phConnection;
return true;
}

public static bool Release(Uri url)
{
return Release(url.ToString());
}

public static bool Release(string urlStr)
{
return Release(urlStr, true);
}

private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}

public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}

[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}

[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);

[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);

[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();

[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);

[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq
 
P

Peter Foot

Can you elaborate on "it is not working", are you getting errors at compile
time, or during execution? exactly where in the code and what return values,
exceptions etc

Peter

--
Peter Foot
Microsoft Device Application Development MVP
www.peterfoot.net | www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility

hassanmushtaq said:
hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.

public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();

static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}

~GPRSConnection()
{
ReleaseAll();
}

public static bool Setup(Uri url)
{
return Setup(url.ToString());
}

public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;

if (ht[urlStr] != null)
return true;

if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;

ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;

if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;

ht[urlStr] = phConnection;
return true;
}

public static bool Release(Uri url)
{
return Release(url.ToString());
}

public static bool Release(string urlStr)
{
return Release(urlStr, true);
}

private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}

public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}

[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}

[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);

[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);

[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();

[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);

[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq
Click to expand...
 
H

hassanmushtaq

Can you elaborate on "it is not working", are you getting errors at compile
time, or during execution? exactly where in the code and what return values,
exceptions etc

Peter

--
Peter Foot
Microsoft Device Application Development MVPwww.peterfoot.net|www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility




hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.
Click to expand...
public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();
Click to expand...
static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}

public static bool Setup(Uri url)
{
return Setup(url.ToString());
}
Click to expand...
public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;
Click to expand...
if (ht[urlStr] != null)
return true;
Click to expand...
if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;
Click to expand...
ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;
Click to expand...
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
Click to expand...
ht[urlStr] = phConnection;
return true;
}
Click to expand...
public static bool Release(Uri url)
{
return Release(url.ToString());
}
Click to expand...
public static bool Release(string urlStr)
{
return Release(urlStr, true);
}
Click to expand...
private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}
Click to expand...
public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}
Click to expand...
[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}
Click to expand...
[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);
Click to expand...
[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);
Click to expand...
[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();
Click to expand...
[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);
Click to expand...
[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq- Hide quoted text -
Click to expand...

- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
bool res = GPRSConnection.Setup("http://" + url + "/");
if (res)
{
TcpClient tc = new TcpClient(url, 80);
NetworkStream ns = tc.GetStream();
byte[] buf = new byte[100];
ns.Write(buf, 0, 100); ns.Close();
tc.Close();
MessageBox.Show("Wrote 100 bytes");
}
else
{
MessageBox.Show("Connection establishment failed");
}


if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
 
H

hassanmushtaq

Can you elaborate on "it is not working", are you getting errors at compile
time, or during execution? exactly where in the code and what return values,
exceptions etc
Click to expand...
news:ea1baf6c-9ac3-42d3-8393-33d2aa162ffb@h25g2000hsf.googlegroups.com...
Click to expand...
hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.
public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();
static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}
~GPRSConnection()
{
ReleaseAll();
}
public static bool Setup(Uri url)
{
return Setup(url.ToString());
}
public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;
if (ht[urlStr] != null)
return true;
if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;
ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
ht[urlStr] = phConnection;
return true;
}
public static bool Release(Uri url)
{
return Release(url.ToString());
}
public static bool Release(string urlStr)
{
return Release(urlStr, true);
}
private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}
public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}
[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}
[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);
[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);
[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();
[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);
[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq- Hide quoted text -
Click to expand...
Click to expand...
- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
                                bool res = GPRSConnection.Setup("http://" + url + "/");
                                if (res)
                                {
                                        TcpClient tc = new TcpClient(url, 80);
                                        NetworkStream ns = tc.GetStream();
                                        byte[] buf = new byte[100];
                                        ns.Write(buf, 0, 100);                                  ns.Close();
                                        tc.Close();
                                        MessageBox.Show("Wrote 100 bytes");
                                }
                                else
                                {
                                        MessageBox.Show("Connection establishment failed");
                                }

if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;- Hide quoted text -

- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
bool res =
GPRSConnection.Setup("http://" + url + "/");
if (res)
{
TcpClient tc = new
TcpClient(url, 80);
NetworkStream ns =
tc.GetStream();
byte[] buf = new byte[100];
ns.Write(buf, 0,
100); ns.Close();
tc.Close();
MessageBox.Show("Wrote 100
bytes");
}
else
{
MessageBox.Show("Connection
establishment failed");
}
this function return false in the main class. bcoz of that a
messagebox appear "Connection Established Failed". can u tell me y it
always retuen false.
///////////////////////////////////////////////
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
/////////////////////////////////////////////

regards
hassan mushtaq
 
P

Peter Foot

Step through the code in the debugger. First check if ConnMgrMapURL is
succeeding and returning a valid Guid for the connection. If this is good
and the connection attempt is still failing look at the status returned and
call Marshal.GetLastWin32Error() after CommMgrEstablishConnectionSync has
returned false for a more detailed error response.

Peter

--
Peter Foot
Microsoft Device Application Development MVP
www.peterfoot.net | www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility

Can you elaborate on "it is not working", are you getting errors at
compile
time, or during execution? exactly where in the code and what return
values,
exceptions etc

--
Peter Foot
Microsoft Device Application Development
MVPwww.peterfoot.net|www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility
Click to expand...
news:ea1baf6c-9ac3-42d3-8393-33d2aa162ffb@h25g2000hsf.googlegroups.com...
Click to expand...
hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.
public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();
static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}
~GPRSConnection()
{
ReleaseAll();
}
public static bool Setup(Uri url)
{
return Setup(url.ToString());
}
public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;
if (ht[urlStr] != null)
return true;
if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;
ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
ht[urlStr] = phConnection;
return true;
}
public static bool Release(Uri url)
{
return Release(url.ToString());
}
public static bool Release(string urlStr)
{
return Release(urlStr, true);
}
private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}
public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}
[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}
[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);
[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);
[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();
[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);
[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq- Hide quoted text -
Click to expand...
Click to expand...
- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
bool res = GPRSConnection.Setup("http://" + url + "/");
if (res)
{
TcpClient tc = new TcpClient(url, 80);
NetworkStream ns = tc.GetStream();
byte[] buf = new byte[100];
ns.Write(buf, 0, 100); ns.Close();
tc.Close();
MessageBox.Show("Wrote 100 bytes");
}
else
{
MessageBox.Show("Connection establishment failed");
}

if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;- Hide quoted text -

- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
bool res =
GPRSConnection.Setup("http://" + url + "/");
if (res)
{
TcpClient tc = new
TcpClient(url, 80);
NetworkStream ns =
tc.GetStream();
byte[] buf = new byte[100];
ns.Write(buf, 0,
100); ns.Close();
tc.Close();
MessageBox.Show("Wrote 100
bytes");
}
else
{
MessageBox.Show("Connection
establishment failed");
}
this function return false in the main class. bcoz of that a
messagebox appear "Connection Established Failed". can u tell me y it
always retuen false.
///////////////////////////////////////////////
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
/////////////////////////////////////////////

regards
hassan mushtaq
 
H

hassanmushtaq

Step through the code in the debugger. First check if ConnMgrMapURL is
succeeding and returning a valid Guid for the connection. If this is good
and the connection attempt is still failing look at the status returned and
call Marshal.GetLastWin32Error() after CommMgrEstablishConnectionSync has
returned false for a more detailed error response.

Peter

--
Peter Foot
Microsoft Device Application Development MVPwww.peterfoot.net|www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility


Can you elaborate on "it is not working", are you getting errors at
compile
time, or during execution? exactly where in the code and what return
values,
exceptions etc
Peter
--
Peter Foot
Microsoft Device Application Development
MVPwww.peterfoot.net|www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility

hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.
public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();
static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}
~GPRSConnection()
{
ReleaseAll();
}
public static bool Setup(Uri url)
{
return Setup(url.ToString());
}
public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;
if (ht[urlStr] != null)
return true;
if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;
ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
ht[urlStr] = phConnection;
return true;
}
public static bool Release(Uri url)
{
return Release(url.ToString());
}
public static bool Release(string urlStr)
{
return Release(urlStr, true);
}
private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}
public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}
[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}
[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);
[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);
[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();
[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);
[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq- Hide quoted text -
- Show quoted text -
Click to expand...
Click to expand...
sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.
Click to expand...
string url = "www.msn.com";
bool res = GPRSConnection.Setup("http://" + url + "/");
if (res)
{
TcpClient tc = new TcpClient(url, 80);
NetworkStream ns = tc.GetStream();
byte[] buf = new byte[100];
ns.Write(buf, 0, 100); ns.Close();
tc.Close();
MessageBox.Show("Wrote 100 bytes");
}
else
{
MessageBox.Show("Connection establishment failed");
}
Click to expand...
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;- Hide quoted text -
Click to expand...
- Show quoted text -
Click to expand...

sorry for not sending u full code. this is the code to call the
GPRSConnectin class which i write it in earlier post.

string url = "www.msn.com";
                                bool res =
GPRSConnection.Setup("http://" + url + "/");
                                if (res)
                                {
                                        TcpClient tc = new
TcpClient(url, 80);
                                        NetworkStream ns =
tc.GetStream();
                                        byte[] buf = new byte[100];
                                        ns.Write(buf, 0,
100);                                  ns.Close();
                                        tc.Close();
                                        MessageBox.Show("Wrote 100
bytes");
                                }
                                else
                                {
                                        MessageBox.Show("Connection
establishment failed");
                                }
this function return false in the main class. bcoz of that a
messagebox appear "Connection Established Failed". can u tell me y it
always retuen false.
///////////////////////////////////////////////
if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;
/////////////////////////////////////////////

regards
hassan mushtaq- Hide quoted text -

- Show quoted text -
Click to expand...

thanks alot peter i have solved the problem.
 
S

Silviu Saulea

I have the same class in my code. Opening gprs and readind from an address is
not a problem to me. Do you know how to close (hang up) the GPRS connection
with all these functionalities? I tryed all, even RasHangUp but stil no
result. I just wana now how to obtain tha same efect with closing manualy the
GPRS connection (phone line hanged up). Thanks very
--
Pised off


Peter Foot said:
Can you elaborate on "it is not working", are you getting errors at compile
time, or during execution? exactly where in the code and what return values,
exceptions etc

Peter

--
Peter Foot
Microsoft Device Application Development MVP
www.peterfoot.net | www.inthehand.com
In The Hand Ltd - .NET Solutions for Mobility

hassanmushtaq said:
hello
i m using VS 2003 with C# in CF 1.0.
i have made application of chatting client. my requirement is when
user bind to any socket it first made connection of GPRS. so can some
one give me code of how to connect to GPRS in CF 1.0/
i have following code. but it is not working.

public class GPRSConnection
{
const int S_OK = 0;
const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
const uint CONNMGR_FLAG_PROXY_HTTP = 0x1;
const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
const uint INFINITE = 0xffffffff;
const uint CONNMGR_STATUS_CONNECTED = 0x10;
static Hashtable ht = new Hashtable();

static GPRSConnection()
{
ManualResetEvent mre = new ManualResetEvent(false);
mre.Handle = ConnMgrApiReadyEvent();
mre.WaitOne();
CloseHandle(mre.Handle);
}

~GPRSConnection()
{
ReleaseAll();
}

public static bool Setup(Uri url)
{
return Setup(url.ToString());
}

public static bool Setup(string urlStr)
{
ConnectionInfo ci = new ConnectionInfo();
IntPtr phConnection = IntPtr.Zero;
uint status = 0;

if (ht[urlStr] != null)
return true;

if (ConnMgrMapURL(urlStr, ref ci.guidDestNet, IntPtr.Zero) != S_OK)
return false;

ci.cbSize = (uint) Marshal.SizeOf(ci);
ci.dwParams = CONNMGR_PARAM_GUIDDESTNET;
ci.dwFlags = CONNMGR_FLAG_PROXY_HTTP;
ci.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
ci.bExclusive = 0;
ci.bDisabled = 0;
ci.hWnd = IntPtr.Zero;
ci.uMsg = 0;
ci.lParam = 0;

if (ConnMgrEstablishConnectionSync(ref ci, ref phConnection,
INFINITE, ref status) != S_OK &&
status != CONNMGR_STATUS_CONNECTED)
return false;

ht[urlStr] = phConnection;
return true;
}

public static bool Release(Uri url)
{
return Release(url.ToString());
}

public static bool Release(string urlStr)
{
return Release(urlStr, true);
}

private static bool Release(string urlStr, bool removeNode)
{
bool res = true;
IntPtr ph = IntPtr.Zero;
if (ht[urlStr] == null)
return true;
ph = (IntPtr)ht[urlStr];
if (ConnMgrReleaseConnection(ph, 1) != S_OK)
res = false;
CloseHandle(ph);
if (removeNode)
ht.Remove(urlStr);
return res;
}

public static void ReleaseAll()
{
foreach(DictionaryEntry de in ht)
{
Release((string)de.Key, false);
}
ht.Clear();
}

[StructLayout(LayoutKind.Sequential)]
public struct ConnectionInfo
{
public uint cbSize;
public uint dwParams;
public uint dwFlags;
public uint dwPriority;
public int bExclusive;
public int bDisabled;
public Guid guidDestNet;
public IntPtr hWnd;
public uint uMsg;
public uint lParam;
public uint ulMaxCost;
public uint ulMinRcvBw;
public uint ulMaxConnLatency;
}

[DllImport("cellcore.dll")]
private static extern int ConnMgrMapURL(string pwszURL, ref Guid
pguid, IntPtr pdwIndex);

[DllImport("cellcore.dll")]
private static extern int ConnMgrEstablishConnectionSync(ref
ConnectionInfo ci, ref IntPtr phConnection, uint dwTimeout, ref uint
pdwStatus);

[DllImport("cellcore.dll")]
private static extern IntPtr ConnMgrApiReadyEvent();

[DllImport("cellcore.dll")]
private static extern int ConnMgrReleaseConnection(IntPtr
hConnection, int bCache);

[DllImport("coredll.dll")]
private static extern int CloseHandle(IntPtr hObject);
}
so please help me
regards
Hassan Mushtaq
Click to expand...
Click to expand...
 

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