调用exe中定义的函数

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

typedef int (*FuncPtr)(int, int);

int main() {
    HINSTANCE hDLL = LoadLibrary("mydll.dll");
    if (!hDLL) {
        std::cerr << "Failed to load DLL"<< std::endl;
        return 1;
    }

    FuncPtr add = (FuncPtr)GetProcAddress(hDLL, "add");
    if (!add) {
        std::cerr << "Failed to find function"<< std::endl;
        return 1;
    }

    int result = add(2, 3);
    std::cout << "Result: "<< result<< std::endl;

    FreeLibrary(hDLL);
    return 0;
}