dllimport

问题 I'm attempting to write a C# managed class to wrap SHGetKnownFolderPath, so far it works on Vista, but crashes on XP due to not finding the proper function in shell32.dll, as expected. I want to have it set so I can fallback on a (admittedly hacky) solution using System.Environment.GetFolderPath if using XP. (Or, even better, if it can't find the funciton in shell32.) Is there any way to do this other then conditional compilation? My current code looks like: public abstract class KnownFolders

问题 In a project using a server.dll and a client.exe, I have dllexport ed a server symbol from the server dll, and not dllimport ed it into the client exe. Still, the application links, and starts, without any problem. Is dllimport not needed, then??? Details: I have this 'server' dll: // server.h #ifdef SERVER_EXPORTS #define SERVER_API __declspec(dllexport) #else #define SERVER_API // =====> not using dllimport! #endif class SERVER_API CServer { static long s; public: CServer(); }; // server

问题 I am trying to call some functions from a C++ DLL file in my C# program. But I got stuck when it comes to pointers. Could somebody point me to the right direction? Here's the C++ header file with the target functions: #pragma once #ifdef STCL_DEVICES_DLL #define STCL_DEVICES_EXPORT extern "C" _declspec(dllexport) #else #define STCL_DEVICES_EXPORT extern "C" _declspec(dllimport) #endif enum SD_ERR { SD_ERR_OK = 0, SD_ERR_FAIL, SD_ERR_DLL_NOT_OPEN, SD_ERR_INVALID_DEVICE, //device with such

问题 I need to share a variables (1000s) between 2 C++ Dlls. How should I do that? MyVariables.Dll contains: int a = 0; ModifyMyVariables.Dll contains: extern int a; a++; // do more stuff with a; What am i supposed to write in the following files? myvariables.h myvariables.cpp ModifyMyVariables.h ModifyMyVariables.cpp 回答1: You can share data between images (EXE, DLL...) using several fundamental mechanisms (using extern does not work to share data - it only instructs the linker and not the loader!

问题 So far I have: // TypeCounter.h template <typename Base> class Counter : public Base { protected: static int typeIndexCounter; }; template <typename T, typename Base> class Bridge : public Counter<Base> { public: virtual ~Bridge() {} virtual int GetTypeIndex() const { return TypeIndex(); } static int TypeIndex() { static int typeIndex = typeIndexCounter++; return typeIndex; } }; // static variable definition template <typename Base> int Counter<Base>::typeIndexCounter; Use case is like: class

问题 I am writing a C# application that passes an empty string array of size 30 to a C++ DLL. This string array needs to be filled in the DLL and given back to the C# application. I my code I observe memory corruption at the end of function call from DLL. My C++ DLL code is as follows: SAMPLEDLL_API BOOL InitExecution (wchar_t **paszStrings, int count) { for (int i = 0 ; i < count; i++) { mbstowcs(*(paszStrings + i), "Good",4); //*(paszStrings + i) = "Good"; } return TRUE; } My C# code is string[]

问题 Iam having problems with dll import in c#. I created library under windows xp x32 and tried to use it on windows 7 x32. My library is using another libraries called opnecvsharp which uses dllimport to opencv libraries for c++. Iam sure i added opencv.dlls to the same folder as executable file. I tried to run exe as admin, disable UAC, add path to dll in PATH variable, but none of those helped me. How I can make my program see dlls ? The error in picture shows that program doesnt see opencv

问题 I am trying to import dll from Metro Style App. But I don't know where should I put dll. Please reply to me. 回答1: You can only reference DLLs built against WinRT. Typically these can be added via nuget, or alternatively added as a project, and using a project reference. Using other approaches is likely to fail certification, and not allow you to distribute your app to the general public. 来源： https://stackoverflow.com/questions/12685805/where-should-i-put-c-sharp-dll-in-metro-style-appc

问题 First, it working fine in Visual Studio 2010 when I do the testing. But I tried 4 of the following to publish into IIS7 on 64bit windows 7, but is still not working: 1.Visual Studio 2010 Publish -> Build -> General -> Platform Target: Any CPU 1-A: IIS7: ASP.Net v4.0, Enable 32-Bit Application = False Error: Server Error in '/TestDll' Application. -------------------------------------------------------------------------------- An attempt was made to load a program with an incorrect format.

问题 I am using several P/Invokes under .NET. However, I want my library to work both in Windows and Linux, preferably with the same binaries. Since the native library I depend on is available on multiple platforms, I was hoping to just have them along with my managed library's binaries. Right now I'm using something like this: [DllImport("/usr/lib/libMYLIBNAME.so.1")] But this obviously only works for Linux. I was considering that I could possibly copy that binary from /usr/lib and distribute