So if I want to pass a list to my callback function through WinApi I use GCHandle // object to IntPtr (before calling WinApi): List<string> list1 = new List<string>(); GCHandle handle1 = GCHandle.Alloc(list1); IntPtr parameter = (IntPtr) handle1; // call WinAPi and pass the parameter here // then free the handle when not needed: handle1.Free(); … Read more
You can unmarshall bottom half in json.RawMessage first, something like package main import ( “encoding/json” “fmt” ) type Message struct { Code int Payload json.RawMessage // delay parsing until we know the code } type Range struct { Start int End int } type User struct { ID int Pass int } func MyUnmarshall(m []byte) … Read more
Reflection does seem like the only real way to accomplish what you’re after. I’ve put together some code below. It creates an attribute called EndianAttribute that can be applied at the field level on a struct. I’ve included the definition for this attribute and it’s associated enum, as well as the modifications to your code … Read more
No, it doesn’t Marshal to the UI thread. If you think about it, it wouldn’t be possible for it to do so. It’s possible to have more than one UI thread in an application. Some programs, such as internet explorer, have many UI threads. Which UI thread would the .Show call pick? It’s also possible … Read more
I think I have a working solution. Thanks to everyone for pointing me in the right direction (I hope). Assemblies can’t be unloaded directly, but AppDomains can. I created a helper library that gets loaded in a new AppDomain and is able to compile a new assembly from code. Here’s what the class in that … Read more
You can leverage the concept of JAXB’s XmlAdapter to do something like the following: input.xml The following is the XML document I will use for this example. The 3rd phone-number entry is a reference to the 1st phone-number entry, and the 5th phone-number entry is a reference to the 4th.: <?xml version=”1.0″ encoding=”UTF-8″ standalone=”yes”?> <customer> … Read more
Solution my teammate found: PrintWriter printWriter = new PrintWriter(new FileWriter(xmlFile)); DataWriter dataWriter = new DataWriter(printWriter, “UTF-8”, DumbEscapeHandler.theInstance); marshaller.marshal(request, dataWriter); Instead of passing the xmlFile to marshal(), pass the DataWriter which knows both the encoding and an appropriate escape handler, if any. Note: Since DataWriter and DumbEscapeHandler are both within the com.sun.xml.internal.bind.marshaller package, you must bootstrap … Read more
After much research and tinkering I have finally managed to achieve a solution to this problem. Please accept my apologies for not posting links to the original references – there are many and I wasn’t taking notes – but this one was certainly useful. My solution uses a filtering XMLStreamWriter which applies an empty namespace … Read more
I would try adding some attributes to your struct decloration [StructLayout(LayoutKind.Sequential, Size=TotalBytesInStruct),Serializable] public struct LPRData { /// char[15] [MarshalAsAttribute(UnmanagedType.ByValTStr, SizeConst = 15)] public string data; /// int[15] [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 15)] public int[] prob; } *Note TotalBytesInStruct is not intended to represent a variable JaredPar is also correct that using the IntPtr class could be … Read more
The C# way of doing this is by letting the marshaler handle the char* stuff while you work with a string: [DllImport(“pjsipDlld”)] static extern int dll_registerAccount( [MarshalAs(UnmanagedType.LPStr)]string username, [MarshalAs(UnmanagedType.LPStr)]string password); Replace LPStr with LPWStr if you’re working with wide chars.