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share|improve this answer answered Jul 29 '13 at 22:16 FKunecke 884420 add a comment| up vote 1 down vote If you are using a DLL, you can to use the LoadLibrary The declaration looks like this: [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] static extern bool SetDllDirectory(string lpPathName); share|improve this answer edited Jan 14 '12 at 11:31 answered Jan 14 '12 at Does every root have an assigned primary use? The system folder is for system DLLs.

All of the complicated problems go away if you just use relative paths. myfunc(); share|improve this answer answered Jul 29 '13 at 22:21 Kirk Backus 2,86231744 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Windows will automatically add .dll and other systems will add the appropriate extension under Mono (e.g. .so on Linux). A word for the moment when you realise technology has outpaced you Why do Internet forums tend to prohibit responding to inactive threads? https://msdn.microsoft.com/en-us/library/aa984739(v=vs.71).aspx

If you're using your application's folder, then that's the first path in the default search order for DLLs. The system does not search for the DLL. Why are static password requirements used so frequently? Why didn't Doctor Strange use the Eye of Agamotto to heal his hands?

Arabian vs. I have compiled the LLVM-3.1.dll file with --enable-shared and it now resides in same directory as my compiled executable (I checked with Environment.CurrentDirectory). multline, split Do American foods contain unsafe levels of glyphosates Purpose of having good credit when you are well-off? You’ll be auto redirected in 1 second.

Join them; it only takes a minute: Sign up __declspec(dllimport) how to load library up vote 5 down vote favorite 1 http://msdn.microsoft.com/en-us/library/9h658af8.aspx MSDN says I can export function from the library Mountaineering with 6 y.o. You can then pinvoke FreeLibrary() twice to decrease the reference count to 0, passing it the IntPtr you got from LoadLibrary(). https://msdn.microsoft.com/en-us/library/3y1sfaz2.aspx DllImportAttribute Class .NET Framework (current version) Other Versions Visual Studio 2010 .NET Framework 4 Silverlight Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 .NET Framework 2.0 .NET Framework 1.1  Indicates

Reduce as many adjacent chars as possible in string Why does Intermediate Value Theorem only considers end-points? If you place the DLL there during the install, it will be found. c# c++ dll constants dllimport share|improve this question edited Jan 16 '12 at 9:52 asked Jan 12 '12 at 13:45 jsn.crdnl 1,06031733 6 Just deploy the DLL in the same Well my solution has a small additional advantage, as even the function name doesn't have to be static and known at compile time.

Function pointer (callbacks) Limitation: The function pointer must have __stdcall calling convention because this is the only type supported by DllImport. You can use them to export and import functions, data, and objects to or from a DLL.Syntax Copy __declspec( dllimport ) declarator __declspec( dllexport ) declarator RemarksThese attributes explicitly define the The only supported conventions are __cdecl and __stdcall. The 16-bit system directory.

The first section discusses the benefits of using DllImport to make calls to native code from a managed application. If the EntryPoint argument is missing, the default value is the name of the function. Does anyone have an idea, what con I do? c++ dll dllexport share|improve this question edited Jul 29 '13 at 22:27 CharlesB 43.1k11117141 asked Jul 29 '13 at 22:11 deepspace 2981418 4 Have a look at: stackoverflow.com/questions/538134/… –Kirk Backus

Here is an article which details those rules http://msdn.microsoft.com/en-us/library/ms682586.aspx I've found the simplest way to load the DLL is just to put it in the same location as the program I Why did the Avro Vulcan use a delta wing? "You there, What do you know about this?" - What did I do now? What will you bring for Thanksgiving? I might move it somewhere else, or change the install path during setup (I do that kind of stuff for fun, just to break badly-behaved applications).

I created a simple asp.net web app that uses the DllImport attribute to call a simple exported function from a custom c++ dll. How to politely decline my salary due to feeling I don't currently deserve it? Any instance members are not guaranteed to be thread safe.

C#VB Copy using System; using System.Runtime.InteropServices; class Example { // Use DllImport to import the Win32 MessageBox function. [DllImport("user32.dll", CharSet = CharSet.Unicode)] public static extern int MessageBox(IntPtr hWnd, String text, String

There is no function that obtains the path of this directory, but it is searched. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> Developer Network Developer Network Developer Sign in MSDN subscriptions The ListenHear Game - Listen and type the word What is the purpose of a mic placed at rear view mirror?

How to respond to your boss's email about a coworker's accusation? Why don't my users have separate desktops in Windows 10? It doesn't have any affect at runtime, other than the Windows loader increasing the internal reference count on the DLL from 1 to 2. If your library is linked properly to your program, it will recognize that there is an external function being used, and look for it in the dll paths.

I was hoping to use filenames like mylibrary32.dll and mylibrary64.dll, but I guess I can live with them having the same name but in different folders. –yoyo Apr 27 '15 at Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)GetHashCode()Returns the hash code for this instance.(Inherited from Attribute.)GetType()Gets the Type of the current instance.(Inherited from Why can't linear bounded automata accept an empty string? share|improve this answer edited Jan 12 '12 at 16:01 answered Jan 12 '12 at 13:55 Ran 4,94111323 There is managed counterpart for LoadLibrary (in the Assembly class). –Luca Jan

See AlsoSetLastErrorExactSpellingPreserveSigCallingConventionSystem.Runtime.InteropServices NamespaceReturn to top Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> Developer Network Developer Network Developer Sign in MSDN subscriptions Yes, the path in which your application will be installed differs on different people's computers, but that's basically a universal rule when it comes to deployment. Can a supine verb have arguments?

An alternative that can help you accomplish what I think you're trying, is to use the native LoadLibrary through P/Invoke, in order to load a .dll from the path you need, LuaLaTeX: [draft] option clash for package graphicx when loaded after fontspec more hot questions question feed lang-ml about us tour help blog chat data legal privacy policy work here advertising info Why don't my users have separate desktops in Windows 10? Contreras Aug 23 '11 at 6:40 add a comment| up vote 0 down vote I'd suggest you to use FileMon (sysinternals.com) to check if your assumptions about the library location are

Is a world with two different types of air possible? A 17th century colloquial term for children, in the way we use 'kids' today Too many reports because report button is too convenient Is it bad to port forward port 443 Hot Network Questions "Here you are & Here you go" Can Mage Hand wield a Shield? 5 Favorite Letters Make a "Ceeeeeeee" program Can my employer see what I do on This means that class templates are explicitly instantiated and the class's members must be defined.dllexport of a function exposes the function with its decorated name.

Not the answer you're looking for? EDIT Here is a code snippet that works, and shows what I meant. This is a terrible solution, anyone who does this should be flogged repeatedly while being forced to read The Old New Thing. The directories that are listed in the PATH environment variable.

The resulting code is as follows: Copy #using using namespace System; using namespace System::Runtime::InteropServices; [StructLayout( LayoutKind::Sequential, CharSet=Unicode )] __value class VS { public: String* m_str; Int32 m_n; }; [DllImport( "some.dll" The 16-bit system directory. Stick the loading code in a static constructor for the type that has the imported functions and it'll all work fine.