Develop Bugs

Device Power Management in WM

Dear сolleagues and development guru!
I have some stopper in Power Management. I hope somebody will help me to understand.
Technologies: C#, .NET 3.5
The main point of application:
Make beep periodically.
Main problem is:
When PocketPC in active mode application running correct, but when PocketPC went to sleep mode it does not make a beep. As I understood speaker is turned off in sleep mode (like all other devices in PocketPC).
Question:
How can I turn on speaker in sleep mode?
Simply what I need is turn on speaker, make beep and back speaker to previous mode without wake up all device.
I tried code like this:
Code:
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Media;
using System.Threading;
using System.Runtime.InteropServices;
namespace TestProject
{
static class Program
{
public const int POWER_NAME = 0x00000001;
public enum DevicePowerState : int
{
Unspecified = -1,
D0 = 0,
D1,
D2,
D3,
D4,
}
[DllImport("coredll.dll", SetLastError = true)]
public static extern int SetDevicePower(
string pvDevice,
int dwDeviceFlags,
DevicePowerState DeviceState
);
[DllImport("coredll.dll", SetLastError = true)]
public static extern IntPtr SetPowerRequirement(
string device,
DevicePowerState state,
uint deviceFlags,
IntPtr systemState,
ulong stateFlags
);
[DllImport("coredll.dll", SetLastError = true)]
public static extern int ReleasePowerRequirement(IntPtr handle);
[MTAThread]
static void Main()
{
MessageBox.Show("Application is running...", "Confirmation", MessageBoxButtons.OK, MessageBoxIcon.Asterisk,MessageBoxDefaultButton.Button1);
string deviceName = "WAV1:"; // speaker
for (; ; )
{
// set D0 power value
IntPtr handle = SetPowerRequirement(deviceName, DevicePowerState.D0, 1, IntPtr.Zero, 0);
// make a beep
SystemSounds.Beep.Play();
// set default power value
ReleasePowerRequirement(handle);
Thread.Sleep(10000);
}
}
}
}
And like this:
Code:
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Media;
using System.Threading;
using System.Runtime.InteropServices;
namespace TestProject
{
static class Program
{
public const int POWER_NAME = 0x00000001;
public enum DevicePowerState : int
{
Unspecified = -1,
D0 = 0,
D1,
D2,
D3,
D4,
}
[DllImport("coredll.dll", SetLastError = true)]
public static extern int SetDevicePower(
string pvDevice,
int dwDeviceFlags,
DevicePowerState DeviceState
);
[DllImport("coredll.dll", SetLastError = true)]
public static extern IntPtr SetPowerRequirement(
string device,
DevicePowerState state,
uint deviceFlags,
IntPtr systemState,
ulong stateFlags
);
[DllImport("coredll.dll", SetLastError = true)]
public static extern int ReleasePowerRequirement(IntPtr handle);
[MTAThread]
static void Main()
{
MessageBox.Show("Application is running...", "Confirmation", MessageBoxButtons.OK, MessageBoxIcon.Asterisk,MessageBoxDefaultButton.Button1);
string deviceName = "WAV1:"; // speaker
int resDevicePowerOn = SetDevicePower(deviceName, POWER_NAME, DevicePowerState.D0);
for (; ; )
{
// make a beep
SystemSounds.Beep.Play();
Thread.Sleep(10000);
}
}
}
}
But any of these codes does not work - there are no beep in sleep mode.

Hi, I just happened to find an article from codeproject.
You may want to take a look at it.
http://www.codeproject.com/KB/mobile/WiMoPower1.aspx
I think what you need is cerunappattime.

It seems you are enabling the audio device to run in low-power mode, but you are not actually telling the CPU to keep running ("unattended mode").
Lookup PowerPolicyNotify, specifically PPN_UNATTENDEDMODE.
You may also need to periodically call SHIdleTimerResetEx and/or SystemIdleTimerReset to keep the device active in unattended mode or it will still truely suspend.

Prevent the system enter sleep mode
The system will stop all activitis when the system enter sleep mode.So you must prevent the system enter sleep mode.
The system sleep mode：
on -> unattended -> suspend
You can run：
on -> unattended -> resuming
my code：time up is system on
ex file：screenblack.rar
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using Microsoft.Win32;
namespace ScreenBlack
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
//取得系統狀態 Get system state
[DllImport("Coredll.dll", SetLastError = true)]
public static extern int GetSystemPowerState(StringBuilder PowerState, int length, ref int Flags);
//設定系統電源狀態
[DllImport("Coredll.dll")]
public static extern int SetSystemPowerState(int psState, int StateFlags, int Options);
public const int POWER_STATE_ON = 0x12010000;
public const int NULL = 0;
public const int POWER_FORCE = 0x00001000;
private void Form1_Load(object sender, EventArgs e)
{
//設定 timer1 的設定值 0.5 秒 Set timer1 activie in 0.5 second
timer1.Interval = 500;
//啟動定時器 Start timer1
timer1.Enabled = true;
}
//宣告變數判斷是否有改變 suspend 0：沒有改變 1：有改變
int change = 0;
//宣告變數判斷執行秒數 10
int second = 20;
private void timer1_Tick(object sender, EventArgs e)
{
//設定其標為 0
int flags = 0;
//取得系統狀態名稱 on、suspend、unattended、resuming
StringBuilder stb = new StringBuilder(260);
//取得系統狀態 Get Current system state
GetSystemPowerState(stb, stb.Capacity, ref flags);
//判斷目前系統狀態
if (flags.ToString() == "4194304")
{
//改變 unattended 為 resuming Chang unattended into resuming
RegistryKey reg = Registry.LocalMachine.OpenSubKey(@"System\CurrentControlSet\Control\Power\State\Suspend", true);
reg.SetValue("Flags", "268435456", RegistryValueKind.DWord);
reg.Close();
//設定 reg 有改變
change = 1;
}
else if (flags.ToString() == "268435456")
{
//秒數減一
second--;
//判斷 second 是否等於零
if (second == 0)
{
//************
// your code
//************
//system on
SetSystemPowerState(NULL, POWER_STATE_ON, POWER_FORCE);
//設定秒數
second = 20;
}
}
else
{
//判斷是否有改變
if (change == 1)
{
//改變 unattended 為 resuming Chang unattended into resuming
RegistryKey reg = Registry.LocalMachine.OpenSubKey(@"System\CurrentControlSet\Control\Power\State\Suspend", true);
reg.SetValue("Flags", "2097152", RegistryValueKind.DWord);
reg.Close();
//設定 reg 有改變
change = 0;
//設定秒數
second = 20;
}
}
}
}
}

Turn off GPRS

I'm looking for a way to turn off the data (GRPS)
Search didn't brought me anything usefull, I'm sure there is somwhere the data but can't find it.
I'm especially need it for WM 6.5 (HD2)

Search around for Modaco's NoData program. It's late and I'm too tired to search it up for you right now.

kekkle said:
Search around for Modaco's NoData program. It's late and I'm too tired to search it up for you right now.
Click to expand...
Click to collapse
Thanks for the replay but it’s not what I meant, sorry for not be clarify.
I know the NoData app and actually i just finish writing something similar but more user friendly, hope to release it asap (Now I have problem with the icon )
What I’m looking is a way to turn off programmatically the data connection of the device, what the CommManager in the HTC sense do.
I tried to use the RAS api but it didn't work

look for jmlcomm.exe here at xda and use it in your app.simple command line call.and free to use.

MichelDiamond said:
look for jmlcomm.exe here at xda and use it in your app.simple command line call.and free to use.
Click to expand...
Click to collapse
Thanks for the idea, I'll try it.
But I prefer to do it directly from my app. without calling external tool.

I found a solution!
Its from few posts in the net, don't remember where exactly with some modification of me.
here is the code I use, if someone else will need it:
Code:
using System;
using System.Text;
using System.Runtime.InteropServices;
namespace RasHelper
{
class RasHelper
{
private const int SUCCESS = 0;
private const int ERROR_NOT_ENOUGH_MEMORY = 8;
private const int RASBASE = 600;
private const int ERROR_BUFFER_TOO_SMALL = RASBASE + 3;
private const int ERROR_INVALID_SIZE = RASBASE + 32;
// --- RASCONN data structure definition (refer to ras.h) --
private const int RAS_MaxEntryName = 20;
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct RASCONN
{
public int dwSize;
public IntPtr hrasconn;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = RAS_MaxEntryName + 1)]
public string szEntryName;
}
// --------------------------------------------
[DllImport("coredll.dll", SetLastError = true, CharSet = CharSet.Auto)]
private static extern uint RasEnumConnections(
[In, Out] RASCONN[] rasconn,
[In, Out] ref int cb,
[Out] out int connections);
[DllImport("coredll.dll")]
private static extern uint RasHangUp(IntPtr pRasConn);
/// <summary>
/// Returns all active RAS connections as an array of data structure RASCONN
/// </summary>
/// <returns></returns>
public static RASCONN[] GetAllConnections()
{
RASCONN[] tempConn = new RASCONN[1];
RASCONN[] allConnections = tempConn;
tempConn[0].dwSize = Marshal.SizeOf(typeof(RASCONN));
int lpcb = tempConn[0].dwSize;
int lpcConnections = 0;
uint ret = RasEnumConnections(tempConn, ref lpcb, out lpcConnections);
if (ret == ERROR_INVALID_SIZE)
{
throw new Exception("RAS: RASCONN data structure has invalid format");
}
else if (ret == ERROR_BUFFER_TOO_SMALL && lpcb != 0)
{
// first call returned that there are more than one connections
// and more memory is required
allConnections = new RASCONN[lpcb / Marshal.SizeOf(typeof(RASCONN))];
allConnections[0] = tempConn[0];
ret = RasEnumConnections(allConnections, ref lpcb, out lpcConnections);
}
// Check errors
if (ret != SUCCESS)
{
throw new Exception("RAS returns error: " + ret);
}
if (lpcConnections > allConnections.Length)
{
throw new Exception("RAS: error retrieving correct connection count");
}
else if (lpcConnections == 0)
{
// if there are no connections resize the data structure
allConnections = new RASCONN[0];
}
return allConnections;
}
/// <summary>
/// Closes all active RAS connections
/// </summary>
/// <returns></returns>
public static void CloseAllConnections()
{
RASCONN[] connections = GetAllConnections();
for (int i = 0; i < connections.Length; ++i)
{
//MessageBox.Show(connections[i].ToString());
RasHangUp(connections[i].hrasconn);
}
}
/// <summary>
/// Check if there are open data connections
/// </summary>
/// <returns></returns>
public static bool IsConnectionsOpen()
{
RASCONN[] connections = GetAllConnections();
if (connections.Length > 0)
return true;
else
return false;
}
}
}

Webclient Help

how do i replicate this under windows mobile. The first function works flawlessly however the second version (Which is required to run on windows mobile 6.1-6.5) doesn't.. If anyone has any idea how to fix it i'm willing to try it out.
Thanks
Code:
private static byte[] WebPost(string url, byte[] data)
{
var webClient = new WebClient();
return webClient.UploadData(url, data);
}
This dont.
Code:
private static byte[] WebPost(string url, byte[] data)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Credentials = System.Net.CredentialCache.DefaultCredentials;
request.Timeout = 10000; // 10 secs
request.Method = "POST";
byte[] requestPostBuffer = System.Text.Encoding.GetEncoding(1252).GetBytes(ByteArrayToStr(data));
request.ContentLength = requestPostBuffer.Length;
Stream requestPostData = request.GetRequestStream();
requestPostData.Write(requestPostBuffer, 0, requestPostBuffer.Length);
requestPostData.Close();
// initialize the httpweresponse object
HttpWebResponse webResponse = (HttpWebResponse)request.GetResponse();
// set our encoding
Encoding enc = System.Text.Encoding.GetEncoding(1252);
//initialis the webresponse stream with our encoding
StreamReader webResponseStream = new StreamReader(webResponse.GetResponseStream(),enc);
// create a string to copy it all into.
string streamedData = webResponseStream.ReadToEnd();
webResponse.Close();
webResponseStream.Close();
byte[] convertedResponse = StrToByteArray(streamedData);
convertedResponse = Encoding.Convert(System.Text.Encoding.Default, Encoding.GetEncoding(1252),convertedResponse);
return convertedResponse;
}

[Q] [.net cf]Loopback

Hey guys
I'm developing a little webserver for WM with the .net cf. it's easy and works fine as long as I don't try to access it from the same device it's running on. Nothing works: localhost,127.0.0.1 or even if I'm connected to a wifi network and I use this IP. Has anyone the solution for this issue?
ta you
a yeah I use the TcpListener-Class and I implemted some simple HTTP.
chabun

Code
Hey guys
Noone has an idea??
Here is the code which I use to setup the HttpListener and answer connections.
Code:
using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using StedySoft.SenseSDK;
using System.Threading;
using System.IO;
namespace WebServer
{
public partial class ServerForm : Form
{
IPEndPoint local;
TcpListener listener;
private volatile bool stop;
private volatile bool handled;
SensePanelItem state;
SensePanelTextboxItem response;
Thread serverThread;
public ServerForm(IPEndPoint local)
{
InitializeComponent();
this.local = local;
SetupList();
}
private void SetupList()
{
SensePanelDividerItem infos = new SensePanelDividerItem("infd", "Infos");
mainList.AddItem(infos);
mainList.AddItem(new SensePanelItem("Local-Endpoint") { PrimaryText = "Local-Endpoint", SecondaryText = local.ToString() });
mainList.AddItem(state = new SensePanelItem("Status") { PrimaryText = "Status", SecondaryText = "Wird gestartet..." });
mainList.AddItem(new SensePanelDividerItem("Response", "Response"));
mainList.AddItem(response = new SensePanelTextboxItem("body") { LabelText = "HTML-Body, welcher auf Requests gesendet wird.", Text = "<span style =\"color:red;font-size:30pt\">It works!!</span>" });
mainList.AddItem(new SensePanelDividerItem("Requests", "Requests"));
}
private void StartServer()
{
if (listener != null)
{
StopServer(true);
}
listener = new TcpListener(local.Port);
listener.Start();
serverThread = new Thread(listen);
serverThread.IsBackground = true;
stop = false;
serverThread.Start();
state.SecondaryText = "Gestartet...";
}
private void listen()
{
while (!stop)
{
while (listener.Pending())
{
handled = false;
Thread handlingThread = new Thread(handler);
handlingThread.Start();
while (!handled)
Thread.Sleep(50);
}
Thread.Sleep(200);
}
}
private void handler()
{
// Get the current connection
TcpClient client = (TcpClient)this.Invoke(new Func<TcpClient>(listener.AcceptTcpClient));
IPEndPoint remote = (IPEndPoint)client.Client.RemoteEndPoint;
handled = true;
NetworkStream stream = client.GetStream();
StreamReader reader = new StreamReader(stream);
ReadHttpRequest(reader);
StreamWriter writer = new StreamWriter(stream);
StringBuilder response = new StringBuilder(); ;
StartHTML(response);
response.AppendLine((string)this.Invoke(new Func<IPEndPoint, string>(GetResponse), remote));
EndHTML(response);
WriteHTTPResponse(writer, response.Length);
writer.WriteLine(response.ToString());
writer.Flush();
stream.Close();
client.Close();
}
private void WriteHTTPResponse(StreamWriter writer, int length)
{
writer.WriteLine("HTTP/1.1 200 OK");
writer.WriteLine("Date: " + DateTime.Now.ToString());
writer.WriteLine("Content-Length: "+ length.ToString());
writer.WriteLine("Connection: close");
writer.WriteLine("Content-Type: text/html; charset=utf-8");
writer.WriteLine();
}
private void ReadHttpRequest(StreamReader reader)
{
string buffer = null;
while (buffer != "")
buffer = reader.ReadLine();
}
int counter = 0;
private string GetResponse(IPEndPoint remote)
{
counter++;
mainList.AddItem(new SensePanelItem(counter.ToString()) { PrimaryText = remote.ToString(), SecondaryText = "Response:" + counter.ToString() });
return response.Text;
}
private void EndHTML(StringBuilder writer)
{
writer.AppendLine("</body>");
writer.AppendLine("</html>");
}
private void StartHTML(StringBuilder writer)
{
writer.AppendLine("<?xml version=\"1.0\"?>");
writer.AppendLine("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">");
writer.AppendLine("<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"de\" lang=\"de\">");
writer.AppendLine("<head>");
writer.AppendLine("<title>SmartWebServer</title>");
writer.AppendLine("<meta name=\"author\" content=\"Alexander Kayed\">");
writer.AppendLine("</head>");
writer.AppendLine("<body>");
}
private void StopServer(bool restart)
{
stop = true;
serverThread.Join();
if (restart)
StartServer();
}
private void ServerForm_Load(object sender, EventArgs e)
{
StartServer();
}
private void ServerForm_Closed(object sender, EventArgs e)
{
StopServer(false);
}
private void menuItem1_Click(object sender, EventArgs e)
{
this.Close();
}
}
}
The user can choose the IPEndPoint(constructor), which the server will be bound to, in a prevouis form:
Code:
foreach (IPAddress ip in Dns.GetHostEntry(Dns.GetHostName()).AddressList)
{
item = new SensePanelRadioItem(ip.ToString());
item.PrimaryText = ip.ToString();
item.SecondaryText = ip.AddressFamily.ToString();
item.Tag = ChoosedIp = ip;
item.OnStatusChanged += new SensePanelRadioItem.StatusEventHandler(item_OnStatusChanged);
IPList.AddItem(item);
}
So the user can choose between IPs I got from the DNS (e.g. 127.0.0.1, 192.168.0.1) and type a free (valid) port number (eg. 80, 8080, 8888)
Thanks for Your help!!

Still no answer...
I will post my experiences with this issue as long as I solved it - like small blog. Maybe some of you have the same problem...
I found another strange thing:
I'm able to connect to my Server from a TcpClient from another self-written App (own exectuable, different AppDomain):
Code:
void test()
{
Action<string> setText = new Action<string>(setTestText);
try
{
this.Invoke(setText, "Connect...");
TcpClient client = new TcpClient();
client.Connect(local);
this.Invoke(setText, "Connected...");
NetworkStream stream = client.GetStream();
StreamWriter writer = new StreamWriter(stream);
StreamReader reader = new StreamReader(stream);
writer.WriteLine();
writer.Flush();
this.Invoke(setText, "Read answer");
string buffer = reader.ReadToEnd();
this.Invoke(setText, "Test succeeded");
testing = false;
}
catch
{
this.Invoke(setText, "Test failed");
}
}
And I got a the right answer as well. It's strange, really strange that the browsers (IE,Opera etc.) can't loopback to it?

MAPIdotnet and binary message body

Best all,
A while ago I tried to make a simple application which can export all my smses and mmses to my local database server. It runs quite smoothly but I can't manage to get the correct mms body data. It seems that about 5% of the exported body data(for example a sent picture in jpeg format) is different from the original jpeg picture/body data: the exported picture data can't be viewed, it is corrupt.
I suspect the method of exporting the data must be changed from string to binary, but I don't know exactly how to proceed.
I'm using C# 2008 in combination with the MAPIdotnet library, and my target device is a HTC HD Mini with Windows Mobile 6.5 professional.
The part of my code where it's going wrong:
Code:
ASCIIEncoding asen = new ASCIIEncoding();
byte[] ba = asen.GetBytes(s);
bw.Write(ba);
bw.Close();
fs.Close();
if (messages[msgID].Body != null)
{
FileStream fs2 = File.Create("\\Opslagkaart\\Debug\\body_" + Convert.ToString(msgID) + ".dat");
BinaryWriter bw2 = new BinaryWriter(fs2);
System.Text.UnicodeEncoding enc = new System.Text.UnicodeEncoding();
byte[] file = enc.GetBytes(messages[msgID].Body);
//bw2.Write(messages[msgID].Body);
bw2.Write(file);
bw2.Close();
fs2.Close();
}
In combination with MAPIdotnet's code:
Code:
public string Body
{
get
{
IStreamChar s = (IStreamChar)this.msg.OpenProperty(cemapi.PropTags.PR_BODY, 0);
if (s == null)
return "";
IntPtr p = Marshal.AllocHGlobal(4);
char[] b = new char[3];
StringBuilder str = new StringBuilder();
int c, len = b.Length * 2;
do
{
s.Read(b, len, p);
c = Marshal.ReadInt32(p);
str.Append(new string(b, 0, c / 2));
}
while (c >= len);
Marshal.FreeHGlobal(p);
return str.ToString();
}
}
Can somebody give a hint of how to proceed?
Thanks,

I suddenly got some more inspiration and, with help from google, I've managed to correctly retrieve the binary jpeg attachments of two of my mmses.
The code part of my program:
Code:
//if (messages[msgID].BodyBinary.Length>0)
//{
FileStream fs2 = File.Create("\\Opslagkaart\\Debug\\body_" + Convert.ToString(msgID) + ".dat");
BinaryWriter bw2 = new BinaryWriter(fs2);
bw2.Write(messages[msgID].BodyBinary);
bw2.Close();
fs2.Close();
//}
The code part of the customized MAPIdotnet:
Code:
private static IntPtr ReadBuffer;
static int Read(OpenNETCF.Runtime.InteropServices.ComTypes.IStream strm, byte[] buffer)
{
if (ReadBuffer == IntPtr.Zero) ReadBuffer = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int)));
try
{
strm.Read(buffer, buffer.Length, ReadBuffer);
}
catch (NullReferenceException e)
{
//do nothing
}
return Marshal.ReadInt32(ReadBuffer);
}
public byte[] BodyBinary
{
get
{
int buffsize = 1024*1024*2; /* If mms body is bigger than 2MB we have a problem here */
byte[] buffer = new byte[buffsize];
Read(this.msg.OpenProperty(cemapi.PropTags.PR_BODY, 0), buffer);
byte[] data = buffer;//ms.ToArray();
Marshal.FreeCoTaskMem(ReadBuffer);
return data;
}
}
But now ALL bodies are saved as 2MB files.. including the empty ones from for example a sms. And not all mms bodies are of the max size of 2mb. My carrier/phone supports up to 1MB. Perhaps I need to get some 'dynamic size' buffer instead of the fixed one. Does anyone have an idea on how to determine the size of the
this.msg.OpenProperty(cemapi.PropTags.PR_BODY, 0)
Click to expand...
Click to collapse
stream ?

I've solved all my problems by means of the following code (for mapidotnet):
Code:
private static IntPtr ReadBuffer;
static int Read(OpenNETCF.Runtime.InteropServices.ComTypes.IStream strm, byte[] buffer)
{
int returnvalue = 0;
if (ReadBuffer == IntPtr.Zero) ReadBuffer = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int)));
try
{
strm.Read(buffer, buffer.Length, ReadBuffer);
returnvalue = Marshal.ReadInt32(ReadBuffer);
}
catch (NullReferenceException e)
{
returnvalue = 0;
}
return returnvalue;
}
public byte[] BodyBinary
{
get
{
int newdatasize = 0;
int buffsize = 1024*1024*3; /* If mms body is bigger than 3MB we have a problem here */
byte[] buffer = new byte[buffsize];
newdatasize = Read(this.msg.OpenProperty(cemapi.PropTags.PR_BODY, 0), buffer);
if (newdatasize < 0) { newdatasize = 0; }
byte[] data = new byte[newdatasize];
Buffer.BlockCopy(buffer, 0, data, 0, newdatasize);
Marshal.FreeCoTaskMem(ReadBuffer);
return data;
}
}
Now all is working fine and the exported files are of their own real size. I'm sure the above code can be optimized but it's working good now.