本文主要向大家介绍了VC编程之VC、MFC 键盘钩子，代码片断，通过具体的内容向大家展示，希望对大家学习VC编程有所帮助。

在MFC程序中使用键盘钩子来获取按键消息，例程：
#include "StdAfx.h"#include "KeyboardHook.h"static HHOOK g_hHook = NULL;static CWnd* g_pWnd  = NULL;

BOOL CKeyboardHook::Init(HINSTANCE hInst, CWnd *pWnd)
{
 g_pWnd = pWnd;
 g_hHook = SetWindowsHookEx(WH_KEYBOARD_LL,CKeyboardHook::KeyboardHookProc,hInst,NULL);
 return g_hHook == NULL ? FALSE : TRUE;
}

void CKeyboardHook::Close()
{
 UnhookWindowsHookEx(g_hHook);
}

LRESULT CALLBACK CKeyboardHook::KeyboardHookProc(int code, WPARAM wParam, LPARAM lParam)
{
 if(code == HC_ACTION)
 {
  PKBDLLHOOKSTRUCT pStruct = (PKBDLLHOOKSTRUCT)lParam;
  switch(pStruct->vkCode)
  {
  case 'a':
  case 'A':
  case 's':
  case 'S':
  case 'd':
  case 'D':
  case 'j':
  case 'J':
  case ' ':
   if (wParam == WM_KEYDOWN)
   {
    g_pWnd->PostMessage(WM_KEYDOWN, pStruct->vkCode, pStruct->scanCode);                              
   }
   return TRUE;
   break;
  default:  return CallNextHookEx(g_hHook, code, wParam, lParam);
  }
 }
 return CallNextHookEx(g_hHook, code, wParam, lParam);
}    

以上就介绍了VC/MFC的学习，希望对VC/MFC有兴趣的朋友有所帮助。了解更多内容，请关注职坐标编程语言VC/MFC频道！