How to generate a sound with a defined frequency and time?

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Compact
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - ProtectedData.Protect Hi, I was wondering if there was anyone else who is having some difficulties using the DPAPI Crypto calls of WM 2003 SE/ WM 5.0. What I am doing ============= I am creating a library that wraps the provides RSA, 3DES, and RijnDael cryptoghraphic providers. As a part of this, the use of symmetric keys for the 3DES and RijnDael presents me with an interesting problem: how to securely store the symmetrtic key. To this end, I have gone down the path of using the DPAPI Crypto unmanaged API. I have tried using P/Invoke, as well as using the OpenNETCF 1.3 ProtectedData classes, but to no avail. The encrypt works great, and produces encrypted data nicely. However, I run into problems when I try to Unprotect the data. After much cursing and gnashing of teeth, I found the error message: "The data is invalid." The following is the code that I am using: Imports OpenNETCF.Security.Cryptography ... saltBytes = Encoding.ASCII.GetBytes(desParams.SaltValue) derivedPassword = New PasswordDeriveBytes(desParams.Password, saltBytes) derivedKeyBytes = derivedPassword.GetBytes(DEFAULT_KEY_SIZE) encryptedKeyBytes = ProtectedData.Protect(derivedKeyBytes, saltBytes, DataProtectionScope.LocalMachine) decryptedKeyBytes = ProtectedData.Unprotect(encryptedKeyBytes, saltBytes, DataProtectionScope.LocalMachine) desParams.saltValue = "1Password!" desParams.Password = "1Password!" DEFAULT_KEY_SIZE = 16 I am using the OpenNETCF 1.3, with CF 2.0. I have also tried using P/Invoke API calls, and get the same problems. Any one out there have any ideas? Cheers Tag: How to generate a sound with a defined frequency and time? Tag: 56270
  - 2
    - Use Web Service How can I connect to web service and get data from my Pocket PC ap? Tag: How to generate a sound with a defined frequency and time? Tag: 56265
  - 3
    - how to get host_name from vb.net code Hi all, Needed urgently. I am implementing pocket pc application with vb.net and sql server . I am able to synchronize . I am using dynamic filter for filtering data for that purpose i am using host_name() but i dont know how to get that value when we connect to pocket pc . My application is similar to field sales application where data is loaded into pocket pc according to region of the sales person . There is no login or password to enter into pocket pc . I want to use device id as primary key to identify the region. -- yours truly, Pramod Renikindi, creativesoft, australia Tag: How to generate a sound with a defined frequency and time? Tag: 56263
  - 4
    - FileSystemWatcher doesn't fire with Activesync I've got a FileSystemWatcher in a Windows Service watching a directory sync'ed under ActiveSync. However, the Created event doesn't fire when ActiveSync copies the files from the PDA to the local disk. It fires every time if I grab one of the files that's already been sync'ed and copy it right back into the directory. Is there any way to work around this? Here's the code if anyone can offer some insight: Protected Overrides Sub OnStart(ByVal args() As String) Dim path As String = Environment.GetFolderPath(Environment.SpecialFolder.Personal) & "\PDT8100_2002 My Documents\tagfiles" FileSystemWatcher1.Filter = "*.txt" FileSystemWatcher1.IncludeSubdirectories = False FileSystemWatcher1.Path = path FileSystemWatcher1.EnableRaisingEvents = True AddHandler FileSystemWatcher1.Created, AddressOf OnCreated End Sub Thanks very much, Logan Byam Tag: How to generate a sound with a defined frequency and time? Tag: 56262
  - 5
    - Does .net CF v1 support Process.Start() ? hi, all In .net CF v1, how to launch an exe from code? It looks like the .net CF does not support Process, so we only can launch exe by ShellExecute or CreateProcess() API? Is there any other easy call in .net CF v1? Thanks. Tag: How to generate a sound with a defined frequency and time? Tag: 56258
  - 6
    - Pre Build Event? I am trying to create the installation package for my Pocket PC application. I followed Simon Kittle's article from this hyperlink. http://www.codeproject.com/netcf/PackagingAndDeployingPPC.asp But I could not find the place to set Pre-Build Event because there is no Build event under my Common Properties property page. Also I find this from the help page of "Build Events, Common Properties, <Projectname> Property Pages Dialog Box ". They say that Smart Device Developer Notes Build Events, Common Properties Not supported. How do you create a msi file if this is true. Or am I wrong? Thanks Tag: How to generate a sound with a defined frequency and time? Tag: 56257
  - 7
    - Which CF on HPC 2000 (it has be done!) Some folks, ie Henrik Dahl (who only appeared as a guest) has managed t install some version of the compact framework and run applications usin it on a Handheld PC 2000, a jornada 710. I have the Jornada 728 an would be very interested.. -- willko ----------------------------------------------------------------------- willkoh's Profile: http://www.msusenet.com/member.php?userid=411 View this thread: http://www.msusenet.com/t-187096587 Tag: How to generate a sound with a defined frequency and time? Tag: 56255
  - 8
    - Can Windows Mobile 5.0 apps run on Windows Mobile 2003 Second Edition Devices? We have PocketPCs that are Windows Mobile 2003 Second Edition and not immediately upgradable to Windows Mobile 5.0. If we develop SQLMobile applications with the new Visual Studio 2005 will we be able to run them on these devices? I can run them fine now (VS2005 Beta 2) but I am not sure if this is OK for production in November when the release of 2005 comes out. Thank you Tag: How to generate a sound with a defined frequency and time? Tag: 56252
  - 9
    - Format DataGrid cell based on some value I would like to be able to format a cell in the datagrid based on the value in that cell. It's a status column that will have a couple of different possible codes, and each code should get its own background color. Is this possible? I have the DataGrid subclassed if that's necessary. Thanks. Alex Tag: How to generate a sound with a defined frequency and time? Tag: 56249
  - 10
    - datagrid with row alternate color Is possible to extend the datagrid with alternative row color? I've see an article from opennetcf, but they draw with graphics the control. Exist a componet to use? Tag: How to generate a sound with a defined frequency and time? Tag: 56248
  - 11
    - Getting more window information with the handle Hi all, I'm currently P/Invoking the GetForegroundWindow function in C# to get the handle to the active window. But is it possible to get more information about that window like the title, the type or access to the controls? I searched on MSDN and the groups, but couldn't find any functions that will do this. Thanks! Tag: How to generate a sound with a defined frequency and time? Tag: 56240
  - 12
    - Smart Device Project Debugging using VS .NET 2003 Hi, Is it possible to run .exe file before beginning VS .NET 2003 debugger for smart device? My application uses requires a run-time(.exe file) in order to execute it. Can somebody provide me suggestions how to execute run-time from VS .NET 2003 in order to debug my smart device application for Pocket PC? Tag: How to generate a sound with a defined frequency and time? Tag: 56239
  - 13
    - Problem with maximized/no titlebar forms under CF 2.0 Hi, I ported an existing app to CF 2.0. The app is only using maximized forms without title bars or menus so that I get the full screen for my forms. Everything worked nicely under CF 1.0. But after the switch to 2.0, when closing a child frame, instead of just redrawing the parent frame behind it the title bar is briefly displayed. It looks as if CF 2.0, instead of redrawing the form in its actual state, it redraws the titlebar first before it falls back to the maximized/no-titlebar state. Any idea if this is a bug of the 2.0 beta or if this is a new "feature"? Thanks, Detlev Tag: How to generate a sound with a defined frequency and time? Tag: 56233
  - 14
    - Maximized and Borderless Hi, I have just create a form , I have set the window state to maximimzed and the borders to none , but yet the borders are still there , Am I to presume that the borders are removable on a pocket pc app ? Thanks Jon Tag: How to generate a sound with a defined frequency and time? Tag: 56230
  - 15
    - Terminating execution Hi, Im fairly new to cf.net - I have some code which is executing , but when the thread entry form is cloed it doesnt terminate the application ( as would running the framework ), as its still running in memory. Is this normal ? and if it is how do i terminate the code ? Thanks Jon Tag: How to generate a sound with a defined frequency and time? Tag: 56220
  - 16
    - Slow DNS Resolving Whenever I want to use the GetHostByAddress function, the resolution takes quite a lot a time ( +- 8-9 seconds) before the hostname is resolved. Primary and secondary DNS servers are obtained by DHCP, so that isn't the problem. Isn't there a way to make this operation a bit faster? Greetz Tag: How to generate a sound with a defined frequency and time? Tag: 56216
  - 17
    - Application loading screen Dear All, I hope that you all could get what I am going to mention down here and I appreciate on any help attempts. In order to avoid the noticable form loading time caused by form transitions while my application is running, I have decided to load all forms during the startup of my application. After that, using the Application.Run(Form) to show the first page of my application. However, this will then lengthen up the startup of my application as a sacrifice. Hence, I was assigned to create an application loading page (just a progress bar with blinking maybe) to tell the user the application is loading. Is someone out there could give me some hints from where I should start? How could I make a form stay on top of the loading process with the progress bar is blinking? After all the forms are loaded, then only the program should show the first form, which is the log on form. If you all find any doubts on what I am trying to ask, please don't hesitate to let me know and I will try to tell in more details. Indeed, any starting suggestion must well code snippests is very much appreciate. Thank you. Regards, Stephan Tag: How to generate a sound with a defined frequency and time? Tag: 56211
  - 18
    - Process.Start CreateProcess 1. What is the diff between the two. Is either better or worse? 2. How do you seperate mulitple command lines to pull in string array of another VS2005 app Main. Tag: How to generate a sound with a defined frequency and time? Tag: 56210
  - 19
    - SQL Server Communication WHILE docked. Hi: Hope this is a simple one. Simply stated this code functions while PDA is NOT DOCKED and connected to network via WIFI, once docked this code fails to connect to my server. Am I doing something wrong?? Any help of suggestions would be appreciated! Eric. Private Const strConnection As String = _ "Server=serveripaddr;" + _ "User ID=id;password=pw;" + _ "Persist Security Info=True;Integrated Security=false;Connect Timeout=5;" + _ "initial catalog=myDatabase;" Public Function Check_Connectivity(Optional ByVal strState As String = "TEST") As Boolean '------------------------------------------------------------------------------------------- ' Function: CheckConnectivity Mod:08/04/2005 Programmer: Eric S. Blake ' Check Connectivity See if we have Internet Access.... '------------------------------------------------------------------------------------------- Dim sqlConn As New SqlClient.SqlConnection Dim strConn As String = strConnection Dim strS As String Check_Connectivity = False If strConn <> "" Then sqlConn = New SqlClient.SqlConnection sqlConn.ConnectionString = strConn strS = sqlConn.GetType.ToString Check_Connectivity = True Try sqlConn.Open() Catch ex As Exception Check_Connectivity = False End Try If Check_Connectivity = True Then sqlConn.Close() End If End If sqlConn = Nothing End Function Tag: How to generate a sound with a defined frequency and time? Tag: 56202
  - 20
    - VS2005 July CTP Compact Framework Form Events I need to Create a form that will run code, then exit with no user interaction. Problem: If all the controls are docked, the Activated, Paint, and GotFocus do not get called with the application is started. If I put all my code in the Load, the form is never seen. Thanks Mike Smith Tag: How to generate a sound with a defined frequency and time? Tag: 56197
  - 21
    - Phone application and hardware buttons Hi, I am stuck with my first VB.Net and Compact Framework project (I come from Delphi) and need a little help to get started Requirements: My Application has to replace the provider dependent phone application on the MDA III and MDA Compact. At first it has to provide the basic functionality, which shouldn't be too much: - dial a number with the touchscreen - catch incoming calls - start the application when the green phone-button is pressed Well, I am already stuck at the beginning: a) Replacing cprog.exe At first I tried to replace the original phone application with my self-written program, but without success. I couldn't delete, rename or replace the file. On the internet I found the information that the cprog.exe lies in ROM and therefore can't be deleted. b) Catching the phone buttons The green and red phone buttans can't be catched via Microsoft.WindowsCE.Forms.HardwareButton... After a few tries I found out that they must be VK_F3 and VK_F4 - but the handling doesn't work stable (cprog.exe is started even when I "eat" the event with KeyEventArgs.Handled, sometimes the events arent sent etc.) After searching the Internet for a long time I found references to the function GetAsyncKeyState, but don't know how to implement it - I think I need a working VB.Net example here. c) Registry In the registry, the cprog.exe is associated a few times, but when I change a value (try to point to my application) it is ignored A possible solution to my problems with a complete different approach is mentioned by the user mamaich in a web forum: http://forum.xda-developers.com/viewtopic.php?p=140351 Quote: "As you know OS communicates with GSM device through a COM-port. It sends normal AT-commands. You can hook the COM-port, parse ATDxxx and modem's responces and hide unneeded commands." This leads to my next problem: d) Serial port The following code lists the Com-ports 1-6 and 8-9, but it doesn't tell me what port I can/must use: For Each sp As String In System.IO.Ports.SerialPort.GetPortNames CB_COMPORTS.Items.Add(sp) Next How can I detect *robust* of which type a Com-port is (Bluetooth, virtual, Irda etc) and use it then? Is a .Close() followed by a .Open() sufficient? Sorry it's much text, but I hope that somebody of you can point me in the right direction. Since, as I already mentioned, this is my first VB.Net project I appreciate every piece of code. -Jörg PS: Sine I didn't know in which group I should write I did a rather big crosspost - please set the appropriate follow-up Tag: How to generate a sound with a defined frequency and time? Tag: 56192
  - 22
    - Making a Phonecall in .net 2005 Hi all, Is it possible to create a phone call within .net VB. I want to make a call using my own program. I've read obout IPinvoke but is there not a class that makes it a little bit more simple. I hope you can help me. Gr, Frank Tag: How to generate a sound with a defined frequency and time? Tag: 56191
  - 23
    - Barcode Label - Code39 on Printer connected via Bluetooth... Hello All, I am working on Compact Framework from last 1 year and having good hand on it. We want to print barcode label with Compact Framework on Barcode Printer, which is connected via Bluetooth. We want to Print Code39 label Barcode. We are looking for third party component so if any one has tried then please send me a link You can mail me on my E-mail id : BhaveshR@labinformationsystem.com Note : I had tried BarcodeCE for. NetCF @ http://www.fieldsoftware.com/PrinterCE_NetCF.htm to print Code39 barcode labels. Thanks in advance Regards, Bhavesh Rana Tag: How to generate a sound with a defined frequency and time? Tag: 56189
  - 24
    - Using CF with VS2003 I've downloaded the Compact Framework (Developer's, SP3) and I've got VS2003 on my desktop computer. It gives a bunch of CABs and I don't know what to do with them or how to get VS working with the Compact framework. Mail me... (or post here too, to possibly help others aswell) willkoh@hotmail.com Tag: How to generate a sound with a defined frequency and time? Tag: 56186
  - 25
    - Need Help! I want to connect HHT through classic ASP page Hi All, I wrote a wrapper dll 'SmartTransfer.dll' that using rapi APIs (CeRapiInitEx, CeReadFile, CeWriteFile, CeRapiUninit).I have tested 'SmartTransfer.dll' and connected HHT with VB 6 Application through wrapper dll and It is working fine but when I called this wrapper dll on ASP page ,it is not working and not connected with HHT. Then I logged my code and found that CeRapiInitEx return less than 0 value .Can someone help me on this regards and its is possible that I used rapi.dll with ASP 3. code is here : Public Function RapiConnect() As Boolean 'Initiates a connection and returns true ' if it connected, false if it did not. ' Dim fs As New FileSystemObject ' Dim ts As TextStream ' Set ts = fs.CreateTextFile("C:\newman.txt ", True) ' ts.WriteLine "Start" Dim pRapiInit As RAPIINIT Dim dwWaitRet, dwTimeout As Long Dim hr As Long On Error GoTo RapiConnect_Err pRapiInit.cbSize = Len(pRapiInit) pRapiInit.heRapiInit = 0 pRapiInit.hrRapiInit = 0 hr = E_FAIL dwWaitRet = 0 dwTimeout = 10 * ONE_SECOND 'However long you want to wait 'Call CeRapiInitEx one time. hr = CeRapiInitEx(pRapiInit) If hr < 0 Then 'FAILED GoTo Failed End If ' ts.WriteLine "hr is not failed" 'Wait for the RAPI event until timeout. 'Use the WaitForSingleObject function for the worker thread 'Use the WaitForMultipleObjects function if you are also waiting for other events. dwWaitRet = WaitForSingleObject(pRapiInit.heRapiInit, dwTimeout) If dwWaitRet = 0 Then 'WAIT_OBJECT_0 'If the RAPI init is returned, check result ' ts.WriteLine "dwWaitRet SUCCEEDED" If pRapiInit.hrRapiInit >= 0 Then 'SUCCEEDED ' ts.WriteLine "hrRapiInit SUCCEEDED" GoTo Succeeded Else ' ts.WriteLine "hrRapiInit failed" GoTo Failed End If Else ' ts.WriteLine "dwWaitRet failed" 'Timeout or failed. GoTo Failed End If 'success Succeeded: 'Now you can make RAPI calls. 'ts.Close 'Set ts = Nothing 'Set fs = Nothing RapiConnect = True Exit Function Failed: 'Uninitialize RAPI if you ever called CeRapiInitEx. If hr >= 0 Then 'SUCCEEDED Call CeRapiUninit End If 'ts.Close 'Set ts = Nothing 'Set fs = Nothing RapiConnect = False Exit Function RapiConnect_Err: RapiConnect = False End Function Regards, Mansoor Ali Tag: How to generate a sound with a defined frequency and time? Tag: 56174
- Next
  - 1
    - Read XML element value Hello. I have such XML file: <root> <elem1> <optional> Some data <optional> </elem1> </root> How can I get value of the "optional" node? Thank you. Tag: How to generate a sound with a defined frequency and time? Tag: 56171
  - 2
    - Update text value of a label in a thread I try to update a label.text in a threa, but the app is blocked. How can I update a label in a thread? Tag: How to generate a sound with a defined frequency and time? Tag: 56170
  - 3
    - OpenNETCF sample Where I can find a tutorial and samples code for penNETCF Tag: How to generate a sound with a defined frequency and time? Tag: 56166
  - 4
    - RDA in a progress bar Can I visualize in a progress bar the status of pull or push rda method? Tag: How to generate a sound with a defined frequency and time? Tag: 56165
  - 5
    - Interfaces Hi all I've got some code that looks like the following. protected virtual void OnPositionReceived(PositionReceivedEventArgs e) { if ( PositionReceived != null ) this.form.GetInvoker().SafeCallEventHandler( new EventHandler(_OnPositionReceived), this, e ); } The code is working ok, but I've just found out I've back myself into a corner with the way I've designed my GPSInterpreter class, and I'm struggling to get around the problem. The variable form is passed in the ctor of the class as GPSSurveyForm - so the this.form.GetInvoker is strongly typed to GPSSurveyForm. I now want another form to also instantiate the GPSInterpreter class, so "this.form" would then refer to another form. I somehow feel the way around this is with an Interface that both those forms would inherit from, but I'm really struggling getting it to work as this is my first stab at Interfaces. Maybe I'm going down the wrong track - I'd appreciate any advice. Regards Graham Tag: How to generate a sound with a defined frequency and time? Tag: 56163
  - 6
    - How to turn OFF a pocket pc device? Hi, How can I turn off a pocket pc device with visual c#.net? I only found a solution for embedded visual c++...please help me. Thank you juvi Tag: How to generate a sound with a defined frequency and time? Tag: 56162
  - 7
    - RFID Application Development Hello All I am looking to develop a RFID application for Wal-Mart Compliance. Is there any RFID SDK available? I have looked around and have come across RFID middlewares, which are very expensive for my needs. Rich Tag: How to generate a sound with a defined frequency and time? Tag: 56158
  - 8
    - keyevent what happened if i click shelf and insert button on the pda at the same time? it that the same as ctrl + c? cheers Tag: How to generate a sound with a defined frequency and time? Tag: 56155
  - 9
    - Help to start message queues service I tried to create a message queue but the emulator says it's not instaled. how can i install this package? is it realy necessary? Tag: How to generate a sound with a defined frequency and time? Tag: 56154
  - 10
    - Using the IrDAClient class in .net CF Hi, I am using the IrDAClient class in .net CF to build a chat application targetting my iPAQ 3715 running PPC 2003. Now, I understand that there are different types of IR namely: SIR - Serial IR MIR - Medium IR FIR - Fast IR VFIR - Very fast IR. My doubt now is this: Which form of IR communication will be used when I use the .net class IrDAClient to develop my chat application ?? Am I effectively using SIR or MIR or FIR ??? Sinex Tag: How to generate a sound with a defined frequency and time? Tag: 56151
  - 11
    - HOW TO FROM NEWBIE Hi, my name is Bromo, I'm a newbie in developing application for Windows Smartphone 2003 SDK. I managed to installed it accordingly to the manual, where this SDK should be installed after my Visual Studion NET 2003, Microsoft Loopback adapter and ActiveSync 3.7.1 installed first. So I did ... The problems are: 1. I cannot load the pic of the smartphone emulator correctly ... instead a small 4x2 cm dialog box came up with emulator's drop down menu only ... I cannot seems to load the pic. 2. I open the emulator straight from command prompt .. and it works normaly ... I can see the phone image and fully functioning. 3. I cannot connect the emulator with the activesync 4. I've done server configuration and using COM port at connection setting .. still can't work Why all these things happen? ... Please help meeeeeee :(( If anybody kind enough ... please post your solution to bromokun@yahoo.com too ... Thank you Bromo newbie in smartphone 2003 SDK Tag: How to generate a sound with a defined frequency and time? Tag: 56149
  - 12
    - OpenNETCF GPS bug? Hi, I wrote some C# code to display the satellites, SNR ratios etc. I left it running for a few hours (not sure if this has anything to do with it), but now I see that some satellites appear more than once in the list (with diff SNR values). I just had four ID=4 entries, and I now have two ID=7 entries. Is there some caching (or something else) going on in the GPS code that could cause this? Thanks, Hilton Tag: How to generate a sound with a defined frequency and time? Tag: 56144
  - 13
    - Dell Axim X50v Scaling Hi, The good news is that things just work when running the app on the X50v (640x480). The problem is that is seems that there is 2:1 scaling occuring - which would make sense. This means that the text does not look smooth and and when I do draw to a bitmap then use DrawImage, it scales the image (x2) resulting in slightly jaggy text and a slow DrawImage. What is an appropriate way to resolve this issue for the higher resolution devices? Thanks, Hilton Tag: How to generate a sound with a defined frequency and time? Tag: 56143
  - 14
    - AutoSIze Label I just noticed that the Label AutoSize Method is not supported in CF 1. Does anyone know if it is supported in CF 2? If not, is there another way to determine the length of text (in pixels) that is being displayed in a Label? Thanks, JG Tag: How to generate a sound with a defined frequency and time? Tag: 56141
  - 15
    - Trapping PDA Keypress on PDAs with Keyboards - Please help! Hi, I'm using a Falcon PDA PSC 440 which has a built in numeric keypad. It has 2 function keys and what I'm attempting to do is have different screens called depending on the function/number key combination - e.g. Fn1 & 2 would give me the Customer screen, Fn1 & 3 will give me the Sales screen etc... The problem I am facing is by defaults, Fn1&2 will put an asterisk in a text box and Fn1&3 will put a minus sign. I'm putting code in the keypress event but how can I get around the input going into the Textbox? I tried recording the state before keypress, processing the code then overwriting the text but that's not working. If someone is in the Quantity box and presses Fn1&2, they get an asterisk which isn't the desired result. Can anyone help at all please? Thanks in advance. Regards, David. Tag: How to generate a sound with a defined frequency and time? Tag: 56138
  - 16
    - user control dispose never fires vs2003 c# cf v1.0.5000 ive created a user control and it works wonderfully however, the dispose method never fires. searched around, didnt see anything... any ideas as to why it wouldnt fire, i have code in there that needs to execute? Tag: How to generate a sound with a defined frequency and time? Tag: 56135
  - 17
    - How to recognize keypress anywhere in system? Hi, can I recognize keypress within and also out of my application (wherever in system)? Also, how do I check which key it was? Thanks. Tag: How to generate a sound with a defined frequency and time? Tag: 56131
  - 18
    - Thread and progress bar In CF can I use threads? ANd there is the control progress bar? Tag: How to generate a sound with a defined frequency and time? Tag: 56130
  - 19
    - ANN: OpenNETCF SDF 1.4 Released All, OpenNETCF.org is pleased to announce the release of Smart Device Framework version 1.4. Download the binaries or source code here: www.opennetcf.org/sdf View the OpenNETCF Shared Source License here: www.opennetcf.org/license Chris Tacke Co-Founder OpenNETCF.org Tag: How to generate a sound with a defined frequency and time? Tag: 56117
  - 20
    - OT: HTML rendering limitations on Pocket PC Hi, Some HTML emails don't seem to render on the pocket pc - the email looks blank. They look fine in Outlook on the desktop. This doesn't just happen on the pocket pc, but other PDA's and smartphones. These emails are being generated by a utility. It looks like there is something missing or not quite right with the email. Example, if the HTML source is the following, it does not work: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html> <head></head><body><STRONG>Testing STRONG tag</STRONG></body></html> Neither does the version without the DOCTYPE tag. So, what needs to be done here, to make the HTML render properly? Thanks Tag: How to generate a sound with a defined frequency and time? Tag: 56116
  - 21
    - start bluetooth (OpenNETCF.Net.Bluetooth) Hi How do I start the Bluetooth service on my device (IPAQ 2210)? I try to start and stop the service using the OpenNETCF.Net.Bluetooth but the service don't turn on and of. I need the Bluetooth for my application, but I wont it to turn of when I close my application... Ofer Tag: How to generate a sound with a defined frequency and time? Tag: 56114
  - 22
    - ActiveSync Tunneling When a pda is cradled and the computer is connected to the internet, the pda is also able to surf the net thanks to the tunneling of activesync. Now a revered question, is it also possible somehow to connect to your pda through activesync when it's cradled from a computer on the network? Greetz Miguel Tag: How to generate a sound with a defined frequency and time? Tag: 56112
  - 23
    - Reading MS SQL Server CE SDF files on full framework Hello We are building an enterprise system that includes pocket pcs running windows ce and sql server ce. we need to be able to take the sql ce database (.sdf) and look at the data for debugging purposes. This needs to be done on a central desktop machine. Is there any way of reading the sdf (sql ce database) file from a desktop machine. I have tried referencing the sqlce dll (does not work) (needs the compact framework running) Any offers Tag: How to generate a sound with a defined frequency and time? Tag: 56105
  - 24
    - poor GDI+ in .net cf The GDI+ in .net compact framework is missing lots of many function such as coordinates transform(like world transform) even in version2.0 Is there any solutions if to implement a vector framework on mobile device Thanks for any advice Tag: How to generate a sound with a defined frequency and time? Tag: 56104
  - 25
    - Strange goings on with VS2003 & 'System.TypeLoadException' A project that previously working fine now errors with 'System.TypeLoadException' after only minor changes to the app. ( label text changes ) When attempting to track down the source of the error by removing bits of code, it always re-occurs, the details and location of exception change but it is always the same type 'System.TypeLoadException'. If I make a new project and copy all the objects in, then it will work OK for a while; I know because I have been doing this as a work around. Can anybody shed any light on this? Tag: How to generate a sound with a defined frequency and time? Tag: 56103

Hi, how can I generate a sound with a defined frequency and time in the
Compact.Net Framework? Is this possible? Thank you

juvi

Top

Re: How to generate a sound with a defined frequency and time? by Sergey

Sergey
Tue Aug 09 02:46:21 CDT 2005

See this thread:
http://groups-beta.google.com/group/microsoft.public.pocketpc.developer/browse_frm/thread/625c2b8f0e975652/18961ec4df705903#18961ec4df705903

--
Sergey Bogdanov [.NET CF MVP, MCSD]
http://www.sergeybogdanov.com

juvi wrote:
> Hi, how can I generate a sound with a defined frequency and time in the
> Compact.Net Framework? Is this possible? Thank you
>
> juvi

Top

Re: How to generate a sound with a defined frequency and time? by Mike

Mike
Tue Aug 09 02:53:09 CDT 2005

"juvi" <juvi@discussions.microsoft.com> wrote in message
news:803DC381-3CC4-4069-A5F6-616690EE21EC@microsoft.com...
> Hi, how can I generate a sound with a defined frequency and time in the
> Compact.Net Framework? Is this possible? Thank you
>
> juvi

If you can work out how to P/Invoke it correctly you could use the
waveOutOpen/waveOutPrepareHeader/waveOutWrite/waveOutUnprepareHeader/WaveOutClose
functions with the WAVEFORMAT_MIDI structure.

Start from
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/apippc/html/ppc_wfmtmidi_wave_format_midi.asp

Mike

Top