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Hi,
I have a image database in memory. When i want to display it on the screen, i use WinDrawBitmap. But this function does not allow me to resize my image. Is there anyway I can resize my images to show them as thumbnails?
Thanks.
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Hi,
I am trying to port some .NET code to .NET CF. This code contains a lot of thread dependencies. Some threads must start and stop others or wait for them to be started or stopped. .NET has great support for thread synchronization but it is crippled in .NET CF. I can't use the Monitor.PulseAll() method or the Thread.IsAlive, .Abort or .Join methods. In the good old days of Win32 I could use WaitForSingleObject to wait for a thread that signals the mutex. This functionality is replaced by .join etc. but that is not available in the Compact Framework.
I know that I can implement the synchronization with AutoResetEvent and ManualResetEvent but than I have to use a variable that is checked by a thread to find out that another thread wants to stop it.
I really like the .NET thread synchronization mechanisms and I don't like to go back to the old-fashioned "polling" type of synchronization.
Who can point me to .NET CF specific multi threading info?
Regards, Gaston Rommens
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Hi All,
How to hide start menu alone in win ce h/pc 2.11 ?
I can be able to hide the task bar and how to hide the start menu alone using Win CE API's.
The following code is used to hide the entire task bar.
Dim hwnd As Long
Dim lret As Long
hwnd = FindWindow("HHTaskBar", "")
lret = ShowWindow(hwnd, SW_SHOW)
'--- Code to set the form on top.
lret = SetForegroundWindow(Principal.hwnd)
lret = SetWindowPos(Principal.hwnd, HWND_TOPMOST, 0, 0, _
GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), _
SWP_SHOWWINDOW)
please any one having any idea in this regard if so help me out
thanks,
siva
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I'm developing a CE data entry program using eVC++ 3.0 with MFC. It uses a memory-mapped database. The database file can reside pretty much anywhere on the CE device, but I've been recommending that users (testers) keep it in non-volatile memory such as a CF card for data safety. Well that sure backfired!
Here's the problem: If the device (Pocket PC 2002 so far) is suspended then resumed while the program is running, all of the pointers to the database on the CF card seem to get scrambled, and point to garbage within the database. This does NOT happen if the database resides in the device's onboard memory, even after multiple suspend/restarts.
Anyone know what's going on with the CF card? Right now the only work-around I can think of is to detect when the device is being suspended, and clean up/close the database, then re-initialize everything when the device is resumed. However, I can't find how to detect either suspend or resume.
Aaaaaaaaaargh!
majoob
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majoob wrote:
Right now the only work-around I can think of is to detect when the device is being suspended, and clean up/close the database, then re-initialize everything when the device is resumed. However, I can't find how to detect either suspend or resume.
I've had the similar problem with power off/on wrt the COM port. I used the following to fix the problem:
In my main exe I register a notification handler tied to NOTIFICATION_EVENT_WAKEUP that will be executed every time power is turned on:
<br />
CE_NOTIFICATION_TRIGGER nt;<br />
TCHAR szExeName[] = TEXT("\\windows\\XXXEventManager.exe");<br />
TCHAR szArgs[] = TEXT("-P");<br />
<br />
memset (&nt, 0, sizeof (CE_NOTIFICATION_TRIGGER));<br />
nt.dwSize = sizeof (CE_NOTIFICATION_TRIGGER);<br />
nt.dwType = CNT_EVENT;<br />
nt.dwEvent = NOTIFICATION_EVENT_WAKEUP;<br />
nt.lpszApplication = szExeName;<br />
nt.lpszArguments = szArgs;<br />
<br />
hNotificationHandle = CeSetUserNotificationEx (0, &nt, NULL);<br />
Then in XXXEventManager.exe I notify my com-port handler that it needs to reinit itself.
In my case, that was housed in a DLL that I could load and reinit, but I guess it could be handled in many ways, even w/o an extra exe-file.
Just remember to call CeRunAppAtEvent(PathToYourExe, NOTIFICATION_EVENT_NONE) somewhere when you dont need the notification anymore, otherwise you will never get rid of the notification w/o a hard reset.
majoob wrote:
Anyone know what's going on with the CF card?
I know too little about how the CF port get mapped/mounted to even try to answer that. =)
“Our solar system is Jupiter and a bunch of junk” - Charley Lineweaver 2002
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Thanks Jonas, After doing a little research I discovered that its not that the pointers are getting permanently "scrambled" as I first thought, but that it takes the WinCE operating system a few seconds after a resume to reinitialize the card (handles and pointers to the files that were open on the card).
It probably depends on the make and model of the card, but my Kingston CF card took right around 5 seconds after a resume to kick in. If I waited those five seconds before entering data then all was well. So, here's what I did in the data entry loop:
CWaitCursor wait;
m_cFile.GetStatus(m_sFileName, m_rStatus);
wait.~CWaitCursor();
Execution stops for 5+/- seconds on the GetStatus line until the card is initialized, then the waitcursor goes away and the user can continue. Once the card is initialized there is no perceptible delay in execution and the user doesn't see the waitcursor.
Seems a little kludgy but it works. Anyone see a danger in doing this?
majoob
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I have develop an application for my PDA using eVB and pocketSOAP.
I manage to get the base64 string from my pocketSOAP. But, i meet some
problem.
I am newbie in eVB, so, my question is how to convert the base64 string into
an image file and load it into picturebox?
It is urgent ! I hope somebody can help me.
Thanks and best reguards.
jess
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I get an error message debugging smart client apps (consuming 'local' Web Service) deployed to the emulator in vs '03 : "unable to connect to the remote serve". I can’t find much on the setting.
Any pointers would be appreciated.
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I am unable to disable a second level menu item.
I have a Tools popup menu on my menubar that contains two items and a popup item that also contains two menu items. It looks like this:
Tools
|- Toggle Enable/Disable
|- Item
|- SubMenu ->
|---- SubItem1
|---- SubItem2
I used ClassWizard to add the usual ON_UPDATE_COMMAND_UI functions. In the appropriate function, I can use "pCmdUI->Enable(FALSE)" to disable "Item", but I can't disable "SubItem1" and "SubItem2". Matter of fact, the functions that ClassWizard generated for my two sub menu items are never even called. I have breakpoints on both these function and they are never even hit.
This bug occurs on both my emulator and on my Compaq iPaq (arm processor). I created the project with AppWizard and am using a "Basic MenuBar".
Any ideas? Can anyone else disable a submenu item?
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After reporting this issue to Microsoft's tech support, they acknowledged that this was a bug in Pocket PC 2002.
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I need to create an application that obtains my recieved sms from a gsm modem conected to my PC through any of my Ports. After obtaining this information I need to added this information to a MS Access or SQL database so that it can manipulated with other applications (asp).
Also, if its possible, I would like to automatically respond to the number that sent the sms with an "out to lunch" message.
HELP!!
thanks
Jon
X-ZD Designs
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To read some SMS messages from the mobile phone or to send some SMS messages you can use the AT commands.
Just take a look at my article here at CodeProject: Infrared Communication with your Mobile Phone
It will show you how to send / receive some AT commands to your mobile phone. The sample application
works via IrDA, but with some little changes it will also work via a serial communication.
PJ Naughter has also written a very nice program (MfcSMS v1.01) to send some SMS messages. You can find
it on his homepage at http://www.naughter.com/mfcsms.html.
I hope this will help you!
Daniel 
---------------------------
Never change a running system!
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wow. great job.
That info was really useful. But considering that Im am kinda of new to the subject...I still have a couple of questions:
What Im trying to do is create an application (or if you know where I can find one) that reads from a GSM modem or a phone conected to one of my serial ports.
I need the application to have a routine where it reads the SMS from the phone, saves the information into a Database, and erases these SMS. I also need to be able to send messages depending on the information saved into my database.
From what I understand, your application reads the information from the phone...but does it have a way of procesing it??
X-ZD Designs
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I've been asked to think up a solution involving barcode scanners.
I have absolutely no experience in this area, so I am looking for names, links and tutorials.
The scanner must, naturally, be programmable.
"After all it's just text at the end of the day. - Colin Davies
"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus
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Hi,
I need to transfer file from my handheld PC to the remote pc using these protocols.The receiving end ,it may use hyperterminal s/w or anyother standard terminal emualtor.
But the application which is runing on the H/PC should syncronize with the target terminal emulator and has to work according to the protocol selected by both end.
Any resources for XYZModem protocol implementation using C/C++???
Please help me out and suggestions are most welcome.
Thanks,
siva
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Hello!
I need my Pocket PC to receive data over the BlueTooth link. How can I do to open the port and work with it ? I suppose I can open it with CreateFile and providing a name like "COMx", but where can I find the port number ??
I also 'coupled' my Pocket PC with my computer.
Any idea ?
Thanks
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Normaly there is a configuration tool for the Bluetooth port on your Pocket PC where you can assign a virtual com port (eg. COM8) to your Bluetooth port.
Daniel
---------------------------
Never change a running system!
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Go to the registry and look for this key:
HKEY_LOCAL_MACHINE\ExtModems\BtDialupModem
Under it, you will find a Port value. This is the file name you must use when communicating with your phone. In my case it reads BTC1:
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Hello,
I'm using eVC++ 3.00 and I want to do such a thing:
MessageBox("Test");
But I'll have an error at compilation:
error C2664: 'MessageBoxW' : cannot convert parameter 1 from 'char [29]' to 'const unsigned short *'
So, it's because UNICODE convention is used as standard. I suppressed it from the preprocessor settings but it still doesn't work! Is ANSI convention not supported ??
Thanks
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Windows CE only supports UNICODE. All MFC methods and API functions and messages (with some notable exceptions) take UNICODE text. So, your code MUST read:
MessageBox(_T("Test"));
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That's it  !! This will give me a lot of work to convert my existing library  !
Is there a simple way to convert ANSI string to UNICODE string?
char Buff[255];<br />
...<br />
...
...<br />
MessageBox(Buff);
Thanks
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The best thing for you is start replacing char with TCHAR. If you want to do UNICODE to ANSI on-the-fly conversions, your application will run slower. But if you insist, use the mbstowcs, mbtowc, wcstombs and wctomb (check these out from the online help).
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Ok, thanks a lot !
I'll try to replace as more as possible char with TCHAR then !
Thanks
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On PocketPC 2002, I write an application like Ms PocketStreet. I have a toolbar’s icon (called A). When I press onto this icon (A), I can zoom IN a map in screen. Now, I want this: when keep pressing onto a key (like Alt or Ctrl or Shift on Desktop), and press onto icon A, I can zoom OUT the map. It works as Photoshop did.
How can I solve this problem. I saw in PocketPC 2k2, there’re 4 buttons in the bottom of it. I wonder if whether there are some Alt-on-desktop-like buttons or not.
Help me.
=======================
Nothing is perfect
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You can actually use the hardware buttons. Check this page for guidance:
Hardware buttons[^]
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