오늘은 API 클래스화에 대한 수업을 들었다. api.h#pragma once#include #include "msgProc.h"class C_API{private: static C_API* m_pApi; HWND m_hWnd; HINSTANCE m_hInstance; C_MSGPROC m_cMsgProc;private: static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); C_API() = default;public: static void createApi(); static C_API* getApi(); static void releaseApi(); bool init(HINSTANCE h..