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#include <windows.h>
#include "mouse.h"
#include "stdio.h"
HINSTANCE hDllInst = NULL ; // DLL模块实例句柄
int WINAPI DllMain ( HINSTANCE hInstance, DWORD fdwReason, PVOID pvReserved )
{
if ( fdwReason == DLL_PROCESS_ATTACH )
hDllInst = hInstance ; // 保存DLL实例句柄
return true ;
}
// 鼠标钩子消息处理过程
LRESULT CALLBACK MouseProc ( int nCode, WPARAM wParam, LPARAM lParam )
{
if ( nCode == HC_ACTION )
{
WCHAR szBuf[32] = {0} ;
PMOUSEHOOKSTRUCT pMouseInfo = (PMOUSEHOOKSTRUCT)lParam ;
switch ( wParam )
{
// 对鼠标移动消息的处理
case WM_MOUSEMOVE:
{
// 设置鼠标坐标信息
wsprintf ( szBuf, L"( %d, %d )", pMouseInfo->pt.x, pMouseInfo->pt.y ) ;
SetWindowText ( hTagWnd, szBuf ) ;
}
break ;
// 可以添加对其他鼠标消息的处理
case WM_LBUTTONDOWN: break ;
case WM_LBUTTONUP: break ;
case WM_LBUTTONDBLCLK: break ;
}
}
// 继续传递消息
return CallNextHookEx ( hMouse, nCode, wParam, lParam ) ;
}
// 钩子控制函数，能够启动/卸载钩子
BOOL WINAPI SetHook ( HWND hwnd, BOOL isInstall )
{
// 需要安装，且鼠标钩子不存在
if ( isInstall && !hMouse )
{
// 保存窗体句柄到共享段
hTagWnd = hwnd ;
// 设置全局钩子
hMouse = SetWindowsHookEx ( WH_MOUSE, (HOOKPROC)MouseProc, hDllInst, 0 ) ;
if ( hMouse == NULL )
return FALSE ;
}
// 需要卸载，且鼠标钩子存在
if ( !isInstall && hMouse )
{
// 卸载钩子
BOOL ret = UnhookWindowsHookEx ( hMouse ) ;
hMouse = NULL ;
hTagWnd = NULL ;
return ret ;
}
return TRUE ;
}
[attachment=56]
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发表于 2013-6-8 11:07:36
: 
学习徐诶
发表于 2013-7-22 08:27:03