Thread: Run-time dynamic linking

  1. #1
    Registered User
    Join Date
    Feb 2006

    Run-time dynamic linking

    I've been trying to use run-time dynamig linking to import some apis. But GetProcAddress() can't find them.

    Everything seems to be in order, but still doesn't work.
    I'm using Visual Studio 2005.

    #include "stdafx.h"
    #include <windows.h>
    #include <stdio.h>
    using namespace System;
    //typedef declarations from Kernel32.dll
    typedef  HANDLE (*MYPROC_FindFirstFile)(HANDLE, LPWIN32_FIND_DATA);
    typedef  bool (*MYPROC_FindNextFile)(HANDLE, LPWIN32_FIND_DATA);
    int main(int argc, char *argv[])
    HMODULE hModule;
    TCHAR ModuleKernel32[] = TEXT("kernel32.dll");
    	MYPROC_FindFirstFile FindFirstFile;
    	MYPROC_FindNextFile FindNextFile;
    	//load kernel32.dll
            if((hModule = LoadLibrary(ModuleKernel32)) == NULL){
    		printf("LoadLibrary error: %d\n",GetLastError());
    	//get address of *FindFirstFile* function
    	if((FindFirstFile = (MYPROC_FindFirstFile)GetProcAddress(hModule,"FindFirstFile")) == NULL){
    		printf("GetProcAddress FindFirstFile error: %d\n",GetLastError());
    	//get address of *FindNextFile* function
    	if((FindNextFile = (MYPROC_FindNextFile)GetProcAddress(hModule,"FindNextFile")) == NULL){
    		printf("GetProcAddress FindNextFile error: %d\n",GetLastError());
    Last edited by XX@nnX; 08-24-2006 at 10:53 AM.

  2. #2
    Registered User Tonto's Avatar
    Join Date
    Jun 2005
    New York
    You have to FindFirstFileA or FindFirstFileW and FindNextFileA or FindNextFileW. Don't forget to FreeLibrary.

  3. #3
    Registered User
    Join Date
    Feb 2006
    That did it, thanks

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