如何使用导出C++类的DLL进行延迟加载

// DLL项目中的代码
class __declspec(dllexport) MyClass {
public:
    MyClass();
    ~MyClass();
    void myFunction();
};

// 主程序中的代码
#include<Windows.h>
#include<memory>

typedef MyClass* (*CreateMyClass)();
typedef void (*DestroyMyClass)(MyClass*);

int main() {
    HMODULE hModule = LoadLibrary(TEXT("MyDLL.dll"));
    if (hModule == NULL) {
        // 加载DLL失败
        return 1;
    }

    CreateMyClass createMyClass = (CreateMyClass)GetProcAddress(hModule, "CreateMyClass");
    DestroyMyClass destroyMyClass = (DestroyMyClass)GetProcAddress(hModule, "DestroyMyClass");
    if (createMyClass == NULL || destroyMyClass == NULL) {
        // 获取函数地址失败
        FreeLibrary(hModule);
        return 1;
    }

    std::unique_ptr<MyClass, DestroyMyClass> myClass(createMyClass(), destroyMyClass);
    myClass->myFunction();

    FreeLibrary(hModule);
    return 0;
}