I have the following C++ function definition, which I am trying to call through PInvoke from managed code: bool FooBar(SIZE_T* arg1); My managed declaration looked as follows: [DllImport("mydll", SetLastError=true, CharSet=CharSet.Unicode)] private static extern bool FooBar(ref uint arg1); Some of you may notice the same bug I even...
I tried to allocate an array of structs in this way: struct T { int a; int b; } data = Marshal.AllocHGlobal(count*Marshal.SizeOf(typeof(T)); ... I'd like to access to allocated data "binding" a struct to each element in array allocated with AllocHGlobal... something like this T v; v = (T)Marshal.PtrToStructure(data+1, typeof(T))...
I am having some trouble marshaling a pointer to an array of strings. It looks harmless like this: typedef struct { char* listOfStrings[100]; } UnmanagedStruct; This is actually embedded inside another structure like this: typedef struct { UnmanagedStruct umgdStruct; } Outerstruct; Unmanaged code calls back into managed co...
i have a structure public struct SERVER_USB_DEVICE { USB_HWID usbHWID; byte status; bool bExcludeDevice; bool bSharedManually; ulong ulDeviceId; ulong ulClientAddr; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 256)] string usbDe...
After reading Dynamically calling unmanaged dlls in .net I've been trying to modify the code to my liking. I made a class that implements idisposable to wrap load calls in and free them when needed. However I can't seem to figure out the syntax if it is possible to use anonymous delegates with it. var loaded=DynamicLibraryLoader.TryLo...
Hello, I'm working on a C# project for reading FAT32 Boot Sector and BPB, The problem is that I'm using a marshaling mechanism to convert a byte array to a Custom FAT32 data structure. I get a message error saying : Could not load type 'FAT32Management.Fat32BootSector' from assembly 'FAT32Management, Version=1.0.0.0, Culture=neutral, Pub...
I have had not trouble passing primitive values from Javascript to Silverlight through the HTML bridge, but I keep getting stuck when trying to pass a Dictionary. Furthermore, I can't find a single sample of this working anywhere online, though the MSDN documentation says it should just happen automatically. Instead, I get an error tha...
I'm trying to call an external Delphi function from C# which takes a Delphi set as a parameter: Delphi code type tStatus = (sIn, sOut, sAbsent, sSick); tStatusSet = set of tStatus; function LoadEmployees(tStatusSet aStatusSet): tEmpList; I need to marshall a C# array of enum values (that is elements from tStatus) into a format t...
I want to call Garmin API (http://developer.garmin.com/mobile/mobile-sdk/) in VB.Net Compact Framework project. The API is in C++, so i´m making a C# dll project as intermediate way between API dll and VB.Net. I have some problems while executing my code because it throw a NotSupportedException (bad arguments type, i think) in QueCreateP...
Hi, When creating COM interface declarations in C# are there any "rules" you have to stick to? I think there are and would like to get some info on it. For example I'm toying around with the ITaskbarList, ITaskbarList2 and ITaskbarList3 interfaces and it seems to me that I Have to declare the order of the members in the manages implem...
This is my first attempt to call a .NET assembly from a Delphi 5 (Win32) native assembly. I am only familiar with C# and .NET so please bear with me. I guess I will walk thru this layer by layer. Here is the code for the C# assembly I am attempting to execute from the Delphi 5 assembly. using System; using System.Collections.Generic; us...
This is my first time using C#, so I'm very much out of my element. But I have faith that the wonderful people here at Stack Overflow can help me out! I've come up with the following code (below) based on some other pieces of code I found floating around on the internet. What I am trying to do is to look up all the "text" DNS records (TX...
Hello, I have a dll that is written in c++. And I am p/invoking to call the functions. I have this c++ declaration. int dll_registerAccount(char* username, char* password); I have done this dllimport declaration: [DllImport("pjsipDlld")] static extern int dll_registerAccount(IntPtr username, IntPtr password); Would my DllImport b...
I am doing some C# interop work. I have the following struct: #pragma pack(push,1) typedef struct { unsigned __int64 Handle; LinkType_t Type; LinkState_t State; unsigned __int64 Settings; signed __int8 Name[MAX_LINK_NAME]; unsigned __int8 DeviceInfo[MAX_LINK_DEVINFO]; unsigned __int8 Reserved[40]; } LinkInfo_...
Hello, I've recently encountered a situation where I need to create a generic method to read a datatype out of a byte array. I've created the following class: public class DataStream { public int Offset { get; set; } public byte[] Data { get; set; } public T Read<T>() where T : struct { unsafe { ...
Hi, I have a website built with PHP. I have an Erlang application running as a daemon on the same server. I need to call functions on the Erlang application from PHP and get back the result. I've found PHP/Erlang and over PHP modules but I can't install a PHP module on this server, I can only use PHP code. The only way I know to solve...
For some odd reason, when I marshal the LogonUser DLLImport parameters I am no longer able to login succesfully when using the INTERACTIVE logon type, it works for NETWORK logon type. This is my code: [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern bool LogonUser ( ...
I have a basic JavaBean in my service layer and originally it was not designed for marshalling. This object is used by both JAX-WS, JAX-RS, and Servlets in other layers of my application. I want to take advantage of a drill down type effect in my REST services so my question is: How do I make one of the fields/properties of the javabe...
Hi, I'm calling a C DLL function and need to supply the following C struct: typedef struct { char *mTableId; char **mFieldNames; int mNumFields; char *mFilter; char *mSort; int mOffset; int mMaxRecords; char *mTargetRecordFilter; int mSurroundingRec...
I have a JAX-B java web service which I'm using to update a database. Each row in the table that I'm updating is represented by an object similar to below: - public class Item { private String id; private Date startDate; private Date endDate; public Item() { } ... } This class is being instantiated in a separate...