我有两个类,Win32和引擎。我试图将我的WindowProc函数从我的Engine类传递给Win32类。我知道的typedef WNDPROC声明为:将非静态函数指针传递给另一个类?
typedef LRESULT(CALLBACK *WNDPROC)(HWND, UINT, WPARAM, LPARAM);
我的Win32头被声明为:
// Win32.h
#include <Windows.h>
class Win32
{
public:
Win32() {};
~Win32() {};
void Initialize(WNDPROC);
private:
// Route messages to non static WindowProc that is declared in Engine class.
static LRESULT CALLBACK MessageRouter(HWND, UINT, WPARAM, LPARAM);
};
我的引擎类被声明为:
// Engine.h
#include "Win32.h"
class Engine
{
public:
Engine() {};
~Engine() {};
void Initialize();
private:
LRESULT CALLBACK WindowProc(HWND, UINT, WPARAM, LPARAM);
Win32* m_win32;
};
// Engine.cpp
#include "Engine.h"
void Engine::Initialize()
{
m_win32 = new Win32;
m_win32->Initialize(&WindowProc); // How can I pass this function without making
// it static or global.
}
我的Win32类已经有一个给WNDCLASSEX的静态MessageRouter。所以我的问题是,如何将Engine :: WindowProc函数传递给Win32类而不声明它是静态的还是全局的?
它有五个参数,'WNDPROC'有四个参数。你打算如何处理这个问题? – chris