HOOK示例

//file  LHook.cpp文件     将此文件生成动态链接库

#include <windows.h>
#pragma  data_seg("MySec")     //设置MySec段
HWND g_hWnd = NULL;
#pragma  data_seg()

//设置MySec段为共享段
#pragma  comment(linker,"/section:MySec,RWS")


HHOOK g_hMouse = NULL;
//鼠标钩子过程函数
LRESULT CALLBACK MouseProc(int nCode ,WPARAM wParam ,LPARAM lParam)
{
return 1;
}

HHOOK g_hKeyBoard = NULL;
//键盘钩子函数
LRESULT CALLBACK KeyBoardProc(int nCode,WPARAM wParam ,LPARAM lParam)
{
if(wParam == VK_F2)   //对应键盘F2键
{
SendMessage(g_hWnd,WM_CLOSE,0,0);
UnhookWindowsHookEx(g_hMouse);
UnhookWindowsHookEx(g_hKeyBoard);
}
return 1;
}

//安装鼠标钩子和键盘钩子过程
void SetHook(HWND hwnd)
{
g_hWnd = hwnd;
g_hMouse = SetWindowsHookEx(WH_MOUSE , MouseProc ,GetModuleHandle("LHook") ,0);
g_hKeyBoard = SetWindowsHookEx(WH_KEYBOARD ,KeyBoardProc ,GetModuleHandle("LHook.dll"),0);


}

// CHookTestDlg 消息处理程序

_declspec(dllimport) void SetHook(HWND hwnd);   //Dll函数声明


BOOL CHookTestDlg::OnInitDialog()
{
CDialog::OnInitDialog();


// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
//  执行此操作
SetIcon(m_hIcon, TRUE);// 设置大图标
SetIcon(m_hIcon, FALSE);// 设置小图标


// TODO: 在此添加额外的初始化代码

int cxScreen,cyScreen;
cxScreen = GetSystemMetrics(SM_CXSCREEN);
cyScreen = GetSystemMetrics(SM_CYSCREEN);
SetWindowPos(&wndTopMost ,0 ,0 ,cxScreen ,cyScreen ,SWP_SHOWWINDOW);

SetHook(m_hWnd);

return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}