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On Windows CE you must specify the colon after the device name, that is, you must use "COM1:" for example. You must also specify OPEN_EXISTING for the dwCreationDisposition parameter.
If that doesn't help, check the return value of GetLastError for more error information.
Also, be aware that only one handle can be open to a serial port at a time. Check that nothing else, including ActiveSync, has the serial port open. In ActiveSync press the Menu soft button, Connections, then check that under When Cradled, the drop-down list says USB rather than e.g. 115200 Default.
DoEvents: Generating unexpected recursion since 1991
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Thanks for the reply,
I have tried the things you suggested.It does not work
The GetLastError() gives FILE_NOT_FOUND error(Error: 2)
Right now I am using Windows mobile 5.0 emulator and have mapped Serial Port 0 to COM1 of PC
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Hi All,
I am trying to create a service for smartphone which uses Windows Mobile 5.
When ever I switch on the Smartphone that service should run.
How can we do it?
Please give some suggestions/ideas/links.
I am using C#.net, Compact Framework and Windows Mobile 5 SmartPhone SDK.
Thanks in advance
LTCCTL
--------------------------------------------------------------------------------
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Use the OpenNetCF notification namespace:
OpenNETCF.WindowsCE.Notification.Notify.RunAppAtEvent.
Alternatively you can p/invoke the CeRunAppAt function
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Hi All,
I have written an application for the SmartPhone using Windows Mobile 5.
I want to call the application/function i.e Launch the application/function when a specific button/key is pressed and is held for few seconds, say 5 seconds
I have used C#.net and Windows Mobile 5.
Can anyone give me suggestions/ideas/links so that I can perform this.
Thanks in advance
Parasmani Swamy
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Hi
When You Os is come from the wake up state, Start a timer
Then u can press ur key and start ur Applciation via timer started applcaition, This timer start application can get Key press event.
Did u get the , what i'm saying?
Thank you
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Hi RRave,
I have done it.
Thanks for your help
Regards
Parasmani Swamy
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Hi,
Can someone tell me what I need to do to use a web service in a mobile application. I need to know what to do on the service end and on the mobile end. I am using VS.NET 2005, Vista, and IIS 7.
Thanks,
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CodingYoshi
Good questions,
How long time in programming?
because of just I'm ask. And web service is platform independent services.
Anyhow please check in web there lot of article for this subject.
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hi
i am currently wrking in win ce application in cpp
The problem is whenever i have plug out the storage card and before getting any notification, if it executes any os function calls ( like filecopy, filemove etc ) the application hangs. It will not come out of these functions.
what is the reason for that ?
is any way to resolve this issue?
thanks in advance
modified on Thursday, April 17, 2008 10:45 AM
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The docs on this are sparse, to say the least...
My problem: I'm trying to embed a WebBrowser object in a Windows Mobile application. I can create it and query its size and window handle, but IWebBrowser2::Navigate2 fails with E_FAIL.
Can anyone give me any hints to why it fails?
Code (yes, C++):
My host control is declared like this:
class HtmlControl : public Window
{
public:
HtmlControl(HWND window)
: Window(window)
, iOleObject_(NULL)
{
iOleSite_.host = this;
iOleFrame_.host = this;
CreateWebControl();
}
Site iOleSite_;
Frame iOleFrame_;
IOleObject* iOleObject_;
private:
void CreateWebControl();
};Where Site and Frame are declared like this:
struct Site : public IOleClientSite,
public IOleInPlaceSite
{
HtmlControl* host;
STDMETHODIMP QueryInterface(REFIID riid, void** ppvObject);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
STDMETHODIMP SaveObject();
STDMETHODIMP GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
IMoniker** ppmk);
STDMETHODIMP GetContainer(LPOLECONTAINER FAR* ppContainer);
STDMETHODIMP ShowObject();
STDMETHODIMP OnShowWindow(BOOL fShow);
STDMETHODIMP RequestNewObjectLayout();
STDMETHODIMP GetWindow(HWND FAR* lphwnd);
STDMETHODIMP ContextSensitiveHelp(BOOL fEnterMode);
STDMETHODIMP CanInPlaceActivate();
STDMETHODIMP OnInPlaceActivate();
STDMETHODIMP OnUIActivate();
STDMETHODIMP GetWindowContext(LPOLEINPLACEFRAME FAR* lplpFrame,
LPOLEINPLACEUIWINDOW FAR* lplpDoc,
LPRECT lprcPosRect,
LPRECT lprcClipRect,
LPOLEINPLACEFRAMEINFO lpFrameInfo);
STDMETHODIMP Scroll(SIZE scrollExtent);
STDMETHODIMP OnUIDeactivate(BOOL fUndoable);
STDMETHODIMP OnInPlaceDeactivate();
STDMETHODIMP DiscardUndoState();
STDMETHODIMP DeactivateAndUndo();
STDMETHODIMP OnPosRectChange(LPCRECT lprcPosRect);
};
struct Frame : public IOleInPlaceFrame
{
HtmlControl* host;
STDMETHODIMP QueryInterface(REFIID riid, void** ppvObject);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
STDMETHODIMP GetWindow(HWND FAR* lphwnd);
STDMETHODIMP ContextSensitiveHelp(BOOL fEnterMode);
STDMETHODIMP GetBorder(LPRECT lprectBorder);
STDMETHODIMP RequestBorderSpace(LPCBORDERWIDTHS pborderwidths);
STDMETHODIMP SetBorderSpace(LPCBORDERWIDTHS pborderwidths);
STDMETHODIMP SetActiveObject(IOleInPlaceActiveObject* pActiveObject,
LPCOLESTR pszObjName);
STDMETHODIMP InsertMenus(HMENU hmenuShared,
LPOLEMENUGROUPWIDTHS lpMenuWidths);
STDMETHODIMP SetMenu(HMENU hmenuShared, HOLEMENU holemenu,
HWND hwndActiveObject);
STDMETHODIMP RemoveMenus(HMENU hmenuShared);
STDMETHODIMP SetStatusText(LPCOLESTR pszStatusText);
STDMETHODIMP EnableModeless(BOOL fEnable);
STDMETHODIMP TranslateAccelerator(LPMSG lpmsg, WORD wID);
};The implementations of Site and Frame will be provided if needed, so that this space isn't cluttered too much.
So, the interesting function here is HtmlControl::CreateWebControl(). Let's walk it through, so that the possible strangeness of the IWebBrowser2::Navigate2 failure can be better seen.
First, an instance of the WebBrowser COM object is created and its associated IOleObject is retrieved:
IUnknown* iUnknown = NULL;
HRESULT hr = ::CoCreateInstance(CLSID_WebBrowser,
NULL,
CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER,
IID_IUnknown,
(void*)(&iUnknown));
VERIFY(SUCCEEDED(hr));
hr = iUnknown->QueryInterface(IID_IOleObject, (void*)(&iOleObject_));
VERIFY(SUCCEEDED(hr));These operations were all successful in the sense that hr == S_OK.
After getting the WebControl object, I want to show/activate it using our IOleClientSite implementation:
hr = iOleObject_->SetClientSite(&iOleSite_);
VERIFY(SUCCEEDED(hr));
const RECT rect = GetClientRect();
hr = iOleObject_->DoVerb(OLEIVERB_SHOW, NULL, &iOleSite_, 0, GetHwnd(), &rect);
VERIFY(SUCCEEDED(hr)); These operations were also successful in the sense that hr == S_OK. However, the end result (the IWebBrowser2::Navigate2 failure) occurs also if OLEIVERB_SHOW is changed to OLEIVERB_UIACTIVATE or OLEIVERB_INPLACEACTIVATE.
Next, I dig the IWebBrowser2 out of the WebControl object and checks if the browser HWND is sane:
IWebBrowser2* iWebBrowser = NULL;
hr = iOleObject_->QueryInterface(IID_IWebBrowser2, (void**)&iWebBrowser);
VERIFY(SUCCEEDED(hr));
HWND hwndBrowser = NULL;
hr = iWebBrowser->get_HWND((long*)&hwndBrowser);
VERIFY(SUCCEEDED(hr));
VERIFY(hwndBrowser != NULL);
VERIFY(::GetParent(hwndBrowser) == GetHwnd());
IOleWindow* iOleWindow = NULL;
hr = iOleObject_->QueryInterface(IID_IOleWindow, (void*)(&iOleWindow));
VERIFY(SUCCEEDED(hr));
hwndBrowser = NULL;
hr = iOleWindow->GetWindow(&hwndBrowser);
VERIFY(hwndBrowser != NULL);
VERIFY(::GetParent(hwndBrowser) == GetHwnd()); Again, these operations were successful in the sense that hr == S_OK. Also, the browser HWND is equal in both method 1 and 2 and its parent is indeed our host control. I see this as some kind of indication that something works.
But... the thing I need doesn't work; the precious IWebBrowser2::Navigate2:
VARIANT vURL;
vURL.vt = VT_BSTR;
vURL.bstrVal = ::SysAllocString(L"about:blank");
VARIANT vEmpty;
vEmpty.vt = VT_EMPTY;
hr = iWebBrowser->Navigate2(&vURL, &vEmpty, &vEmpty, &vEmpty, &vEmpty);
VERIFY(SUCCEEDED(hr)); Now I get hr == E_FAIL.
I cannot really see the problem, since everything up to this point worked successfully, and the last call seems trivial.
Is anyone still around all the way down here with some guess as to what might be going on?
Thanks for any input!
--
Time you enjoy wasting is not wasted time - Bertrand Russel
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How to make the form floating in ppc?
And how can we drag the form?
??????,??????!
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Hi,
I'm writing a program on the .NET compact framework to connect to the MPD musicplayer via a wifi connection. When I run the program from the simulator it runs fine. However when I deploy the software on the real device, I see the strange fenomenom, that I get the same data back from the the Networkstream object twice (even when connected through the active sync app). I checked the network traffic and I can see no errors there, the messages are correctly in sync. The stream.read method however returns the same data twice, when I do a re-read the correct message is received and the software runs smoothly furtheron. I disabled the optimizer, played around with the socket options, without any result. Adding delays between send and receive doesn't help either, however I do see a difference in debug and release versions. Stepping through the code does not show the problem anymore.
// The code i use to send and receive
protected void sendCommand(string command)
{
if (stream != null)
{
mLock.WaitOne();
OnLog(">>" + command + "\r\n");
byte[] sendBytes = System.Text.Encoding.ASCII.GetBytes(command + "\r\n");
connection.GetStream().Write(sendBytes, 0, sendBytes.Length);
}
}
protected string readResponse(bool check)
{
if (stream != null)
{
byte[] myReadBuffer = new byte[connection.ReceiveBufferSize];
NetworkStream myStream = connection.GetStream();
StringBuilder response = new StringBuilder();
int numberOfBytesRead = 0;
if (stream.CanRead)
{
do
{
numberOfBytesRead = myStream.Read(myReadBuffer, 0, myReadBuffer.Length);
response.Append(Encoding.ASCII.GetString(myReadBuffer, 0, numberOfBytesRead));
commander.addDatatrafic(numberOfBytesRead);
}
while (myStream.DataAvailable && numberOfBytesRead > 0);
OnLog("<<" + Encoding.ASCII.GetString(myReadBuffer, 0, numberOfBytesRead) + "\r\n");
response.Replace("\n", "\r\n");
if (check)
{
if (!checkOK(response.ToString()) && !checkFailed(response.ToString()))
{
response.Append(readResponse());
}
}
mLock.ReleaseMutex();
//lastresponse = response.ToString();
return response.ToString();
}
return "";
}
else
{
return "";
}
}
Anybody any ideas?
Regrards,
eric
modified on Monday, April 14, 2008 4:43 PM
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Eric,
My best guess here is that the function for reading the data is being called twice for the first time. You may try adding a counter and increment its value every time data is being read and check its value at the end.
You may also use any sniffer to check for the data being transferred to and fro. Searching over the google, you may find few tools for the same.
Regards,
Dave
Dave Traister
Software Engineer
ComponentOne LLC
www.ComponentOne.com
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Hi there.
Is there any way I can catch an event, when i plug a cable from my device to a computer?
When there is an active connection between the two devices I want to show a dialog box in my mobile application.
Haolan
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Please check Windows Mobile API
there is lot of system states.
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Can you tell me more specific where I can find these system states?
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Hi
Please search in msdn2.microsoft.com
There are you can find get all system sattes.
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I found this:
http://msdn2.microsoft.com/en-us/library/microsoft.windowsmobile.status.systemstate.activesyncstatus.aspx[^]
With this I have written the following code:
void activeSyncState_Changed(object sender, ChangeEventArgs args)
{
ActiveSyncStatus status = (ActiveSyncStatus)args.NewValue;
try
{
if (status == ActiveSyncStatus.Synchronizing)
{
MessageBox.Show("Hello world!");
}
}
catch (Exception ex)
{
// Handle Exception
}
}
SystemState activeSyncState = new SystemState(SystemProperty.ActiveSyncStatus);
activeSyncState.Changed += new ChangeEventHandler(activeSyncState_Changed);
But when I plug in my cable nothing happens. But I guess I dont use the right api, because I need to fire my event when a connection is established and not when activesync is synchronizing. Is there any way to do that?
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Hi
i tried same code it's work for me
it's wok please double checok u registrated dll in ur enumaltor
Thank you
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code :
Imports Microsoft.WindowsMobile.Telephony
Dim phone As New Phone
phone.Talk("+1.....", True)
=============================================
That code to dial number using Visual Basic for Pocker PC devices
How can I hangUp that connection from My application And How to monitoring the connection to Know it's status whether
Dialing , connected or No connection
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Hello,
I am trying to launch pword.exe using CreateProcess but its failing.
I have used following code : -
BOOL a = CreateProcessW(L"pword.exe", L"", NULL, NULL, TRUE, 0, NULL, NULL, 0, 0);
a = CreateProcessW(L"\\windows\\pword.exe", L"", NULL, NULL, TRUE, 0, NULL, NULL, 0, 0);
Can anybody of you tell me why is it failing?
Thanks in advance!
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Try the following which worked for me:
Process myProcess = new Process();
myProcess.StartInfo.FileName = "\\Windows\\pword.exe";
myProcess.StartInfo.Verb = "Open";
myProcess.Start();
Regards,
Dave
Dave Traister
Software Engineer
ComponentOne LLC
www.ComponentOne.com
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Hi,
I'm trying to create a program that interacts with a bunch of wireless sensors, but I'm not sure where to begin since I have no experience in this and had trouble finding information about it. Here are a few questions that will hopefully help me on my way:
1) What language should I program in? And what framework do I need? I am planning on having this application on a mobile device (i.e. cellphone, PDA).
2) How does the sensor send data to the program? What is needed in order for it to communicate with the program? What hardware as well as software frameworks and APIs?
Here's what I'm thinking: I will write my mobile app in C# and have some event handlers. The sensors will be calling the event handlers of that app. Do I need to do some socket programming, such as creating sockets and taking in packets in order for the sensors to communicate with the application? Also, do I need to account for the fact that the transmission is wireless and if so, how?
Any help will be greatly appreciated.
Thanks!
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Hi all,
After it seems that I'm finding the way to resolve my previous problem,
now I found another problem.
Please read this simple line of code:
Imports System
Imports System.IO
Imports System.Drawing.Graphics
Imports System.Drawing.Color
----------------------------------------
TextBox1.BackColor = RGB(255, 255, 0)
It generate the following error:
Error 1 Value of type 'Integer' cannot be converted to 'System.Drawing.Color'. E:\Documents and Settings\MI\Documenti\Visual Studio 2005\Projects\TrackPlotter\TrackPlotter\Form1.vb 555 30 TrackPlotter
I tryed the same line code in VB 5 with the expected result to colorize the Box yellow.
Is my C.F. 2.0 crazy?.....Or not?
Marco
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