c++ - 用.dll文件编译可执行文件，.dll文件相对于.exe

Question

我有一个 C++ 项目，它对 .dll 文件有更多的依赖性。如何构建可执行文件，以便创建的 .exe 文件在相对于 .exe 的给定文件夹中找到 .dll 文件？我正在使用 Visual Studio。

Answer 1

您可以使用此代码加载 dll 并调用 dll 中导出的函数:

#include <windows.h>
#include <iostream>

/* Define a function pointer for our imported
 * function.
 * This reads as "introduce the new type f_funci as the type: 
 *                pointer to a function returning an int and 
 *                taking no arguments.
 */
typedef int (*f_funci)();

int main()
{
  HINSTANCE hGetProcIDDLL = LoadLibrary("C:\\Documents and Settings\\User\\Desktop  \\fgfdg\\dgdg\\test.dll");

  if (hGetProcIDDLL == NULL) {
    std::cout << "could not load the dynamic library" << std::endl;
    return EXIT_FAILURE;
  }

  # resolve function address here
  f_funci funci = (f_funci)GetProcAddress(hGetProcIDDLL, "funci");
  if (!funci) {
    std::cout << "could not locate the function" << std::endl;
    return EXIT_FAILURE;
  }

  std::cout << "funci() returned " << funci() << std::endl;

  return EXIT_SUCCESS;
}