getprocaddress


Not finding function using GetProcAddress() C++ VBexpress 13

邮差的信 提交于 2020-01-16 00:36:08
问题 Okay so I'm coming dangerously close to a repost here but my situation is a little bit different than the numerous other posters about this function. I am interfacing with a DLL that was written way back in the day and all I have is the file. I don't have a .lib file so I'm using the LoadLibrary and GetProcessAddress functions. I followed the tutorial on the MSDN website to get the basic structure. the DLL is located in the project folder. it compiles. at run time, I am getting a numerical

Function pointer to multiple argument C++11 std::function: Templating GetProcAddress

為{幸葍}努か 提交于 2020-01-15 05:03:27
问题 I am trying to return a function instance from a FARPROC address given by another function that calls GetProcAddress. Came up with an interesting issue. Here's the function: template<class FT> std::function<FT> to_function(FARPROC address) { return address; } Later on I would create a no input function without any issues: auto try1 = to_function<int()>(addr1); However when the function takes an input, the visual c++ 11 compiler explodes: auto try2 = to_function<int(int)>(addr2); It rightfully

GetProcAddress cannot find my functions

孤街浪徒 提交于 2019-12-29 07:46:07
问题 I made a DLL with a function named "render()" and I want to load it dynamically to my application, but GetProcAddress cannot find it. Here's the DLL .h: #ifdef D3D_API_EXPORTS #define D3D_API_API __declspec(dllexport) #else #define D3D_API_API __declspec(dllimport) #endif D3D_API_API void render(); And here's DLL .cpp: #include "stdafx.h" #include "D3D_API.h" #include <iostream> D3D_API_API void render() { std::cout << "method called." << std::endl; } Here's the application that tries to use

C# GetProcAddress Returns Zero

萝らか妹 提交于 2019-12-29 05:19:24
问题 For some reason, whenever my C# .NET 2.0 application makes a call to GetProcAddress it always returns zero. public class MyClass { internal static class UnsafeNativeMethods { [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] internal static extern IntPtr LoadLibrary(string lpFileName); [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] internal static extern bool SetDllDirectory(string lpPathName); [DllImport("kernel32.dll", CharSet = CharSet.Auto,

C# GetProcAddress Returns Zero

為{幸葍}努か 提交于 2019-12-29 05:19:05
问题 For some reason, whenever my C# .NET 2.0 application makes a call to GetProcAddress it always returns zero. public class MyClass { internal static class UnsafeNativeMethods { [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] internal static extern IntPtr LoadLibrary(string lpFileName); [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] internal static extern bool SetDllDirectory(string lpPathName); [DllImport("kernel32.dll", CharSet = CharSet.Auto,

Calling WinSock functions using LoadLibrary and GetProcAddress

主宰稳场 提交于 2019-12-11 07:09:25
问题 Basically I have a header file like this: #if WIN32 typedef DWORD (WSAAPI *SocketStartup) (WORD wVersionRequested, LPWSADATA lpWSAData); typedef SOCKET (WINAPI *MakeSocket)(IN int af, IN int type, IN int protocol, IN LPWSAPROTOCOL_INFOW lpProtocolInfo, IN GROUP g, IN DWORD dwFlags ); typedef DWORD (WINAPI *SocketSendFunc) (IN SOCKET s,__in_bcount(len) const char FAR * buf, IN int len,IN int flags); typedef DWORD (WINAPI *GetLastSocketErrorFunc)(); typedef DWORD (WINAPI *ShutdownSocketFunc)

GetProcAddress returns NULL

主宰稳场 提交于 2019-12-11 03:17:33
问题 I have to use a simple function from a DLL; I am able to load the library but GetProcAddress returns NULL. I think I understood name mangling but maybe I'm doing something wrong. Thanks (Code follows, asap I'll add other information required): mydll.h #ifdef MYDLL_EXPORTS #define MYDLL_API extern "C" __declspec(dllexport) #else #define MYDLL_API extern "C" __declspec(dllimport) #endif MYDLL_API void testFunction(void); MYDLL_API LRESULT CALLBACK mouseProc(int nCode, WPARAM wParam, LPARAM

Addresses of Delphi and C++ WinAPI functions differ when they shouldn't

孤人 提交于 2019-12-11 00:05:02
问题 In C++, if you try to get a function pointer of a Windows API function, that pointer points to the same address you would get if you used GetProcAddress on the name of that function and it's respective module. For example: &MessageBoxA == GetProcAddress("User32.dll", "MessageBoxA"); would be true . However, in Delphi, that is not the case. This code: @MessageBoxA = GetProcAddress('User32.dll', 'MessageBoxA'); Would not be true , and in my test, @MessageBoxA was 0x0040bd18 while the equivalent

Regarding GetProcAddress

回眸只為那壹抹淺笑 提交于 2019-12-08 12:02:50
问题 I have got MyDll.dll and its function defined as below void pascal Myfunction(BOOL); when I'm trying to use the function in another project i am unable get the address of the function with GetProcAddress() . Here is my code: void callMyDll() { HINSTANCE hDll; hDll=LoadLibrary(_T("MyDll.dll"); if(hDll!=NULL) { cout<<"\n DLL Loaded \n"; } else cout<<"\n DLL Not loaded\n" typedef void (__stdcall *MyFunction)(bool) Myfunction mf1 = (MyFunction) GetProcAddress(hDll, "MyFunction"); if (mf1!=NULL)

Make a VB-dll and load it in C++ application

狂风中的少年 提交于 2019-12-07 14:32:44
问题 I have a problem I've been struggeling with for a full week now, and I'm not able to solve it by myself. I've been googeling, and searching in all kind of forums... I have found lots of "this might work", tried it, but no, no success. If anyone have any clue, please, please, help me! I'v got, from an external source, lots of classes and functions written in VB that I need to be able to use from a C++ application. My first though was: no problem, I turn the VB code into a dll, and load it from

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