compact-framework

is it possible to make beep in WinCE ? i try and i get an error JaredPar The .net framework methods for beeing are not available in the CF version of the framework. The best way to get a beep sound is to PInvoke into the MessageBeep function. The PInvoke signature for this method is pretty straight forward [DllImport("CoreDll.dll")] public static extern void MessageBeep(int code); public static void MessageBeep() { MessageBeep(-1); // Default beep code is -1 } This blog post has an excellent more thorough example: http://blog.digitforge.com/?p=4 (on archive.org) Yes. P/Invoke PlaySound or

I need to create a Bitmap object using raw bytes representing monochrome bitmap data. On the full framework, I am doing the following: Bitmap bmp = new Bitmap(width, height, PixelFormat.Format8bppIndexed) BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.WriteOnly, bmp.PixelFormat); // Write my data into bmpData.Scan0 bmp.UnlockBits(bmpData); Unfortunately, the Compact Framework doesn't have the PixelFormat.Format8bppIndexed enum value. So how can I accomplish this on the CF? The only thing I can think of is to manually create the bitmap file header

I have extensive unmanaged Windows CE 5 C++ code that provides a UI that I want to use in a new product by combining it with a large amount of newer business and communications logic written in managed C# on Windows CE 6 and the Compact Framework. The UI may know about the business logic, but I want the business logic ignorant of the UI such that I can later replace it with a managed version, or any other UI that I choose as a front-end. I found an article that describes how to use COM as the bridge in the Windows world, but I'm having difficulty applying it in the .NET CF under WinCE. In the

What is the preferred way to remove the readonly attribute of a file in Compact Framework as we don't have a File::SetAttributes? You could use the OpenNetCF Smart Device Framework , which has a FileHelper class that implements the SetAttributes function. Or if you don't want to go that route, you could PInvoke the native SetFileAttributes method. This also works: FileInfo fileInfo = new FileInfo(path); FileAttributes attributes = fileInfo.Attributes; if ((attributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly) { // set the attributes to nonreadonly fileInfo.Attributes &=

I'm trying to do an HTTP POST REQUEST on .NET Compact Framework and I can't get it working. This is what I got: public static string DoPost(string url) { // initialize from variables string responseString = string.Empty; ASCIIEncoding encoding = new ASCIIEncoding(); //// UTF8Encoding encoding = new UTF8Encoding(); HttpWebResponse response; byte[] data = encoding.GetBytes("dummy"); StreamReader reader; HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); //do the processing SetRequestProperties(request, "POST"); // SETTING METHOD TO POST HERE request.GetRequestStream().Write

I need to be able to know what is the current state of orange button and be notified if this state has changed on Motorola device MC65. Sadly I can't use Symbol.Keyboard.KeyPad class since it is not supported on MC65 The docos state: Keyboard Supported feature - Only the following two API’s are supported on MC65. Symbol.Keyboard.KeyPad.SetKeyState. Symbol.Keyboard.KeyPad.GetKeyStateEx. Following keys are not supported in MC65. KEYSTATE_ALT, KEYSTATE_CTRL, KEYSTATE_NUMLOCK, KEYSTATE_NUMERIC_LOCK, KEYSTATE_CAPSLOCK For the MC65, Microsoft APIs cannot be used to get the Orange key states. The