WinCE 6 鼠标钩子(HOOK)

 1 // MouseHook.h
 2
 3 #ifdef MOUSEHOOK_EXPORTS
 4 #define MOUSEHOOK_API __declspec(dllexport)
 5 #else
 6 #define MOUSEHOOK_API __declspec(dllimport)
 7 #endif
 8
 9 extern "C" MOUSEHOOK_API void CALLBACK InstallMouseHook(void);
10 extern "C" MOUSEHOOK_API void CALLBACK UnMouseHook(void);
11
12 extern "C" MOUSEHOOK_API LRESULT CALLBACK MouseHookProc(int nCode, WPARAM wParam, LPARAM lParam);  

  1 // MouseHook.cpp
  2 // MouseHook.cpp : Defines the entry point for the DLL application.
  3 //
  4
  5 #include "stdafx.h"
  6 #include "MouseHook.h"
  7 #include <Pwinuser.h>
  8
  9 // 告诉编译器将变量放入它自己的数据共享节中
 10 #pragma data_seg("MouseHookData")
 11
 12 HINSTANCE ghInst = NULL;
 13 HHOOK ghMouseHook = NULL;
 14
 15 #pragma data_seg()
 16
 17 // 告诉编译器设置共享节的访问方式为：读，写，共享
 18 #pragma comment(linker, "/SECTION:MouseHookData,RWS")
 19
 20 BOOL APIENTRY DllMain(HANDLE hModule,DWORD  ul_reason_for_call,LPVOID lpReserved)
 21 {
 22   switch(ul_reason_for_call)
 23   {
 24   case DLL_PROCESS_ATTACH:
 25     ghInst = (HINSTANCE)hModule;
 26     break;
 27   case DLL_THREAD_ATTACH:
 28   case DLL_THREAD_DETACH:
 29   case DLL_PROCESS_DETACH:
 30     break;
 31   }
 32     return TRUE;
 33 }
 34
 35 extern "C" MOUSEHOOK_API void InstallMouseHook(void)
 36 {
 37   RETAILMSG(1,(L"[Mouse HOOK]Install HOOK: 0x%x\r\n",ghInst));
 38   if(ghInst)
 39   {
 40     ghMouseHook = SetWindowsHookEx(WH_MOUSE_LL, MouseHookProc, ghInst, 0);
 41     if(NULL == ghMouseHook)
 42     {
 43       RETAILMSG(1,(L"[Mouse HOOK]HOOK create failed: %d\r\n",GetLastError()));
 44     }
 45   }
 46 }
 47
 48 extern "C" MOUSEHOOK_API void UnMouseHook(void)
 49 {
 50   RETAILMSG(1,(L"[Mouse HOOK]Uninstall HOOK:0x%x\r\n",ghMouseHook));
 51   if(ghMouseHook)
 52   {
 53     UnhookWindowsHookEx(ghMouseHook);
 54     ghMouseHook = NULL;
 55   }
 56
 57   ghInst = NULL;
 58 }
 59
 60 /*
 61 nCode
 62 [输入参数] 说明 HOOK 过程如何处理此消息。如果 nCode 小于零, HOOK 过程必须将此消息直接传递给下一个 CallNextHookEx, 并从 CallNextHookEx 返回.
 63   本参数可以取以下的值：HC_ACTION
 64 wParam 和 lParam 参数中包含鼠标消息的信息。
 65 wParam
 66 [输入参数] 鼠标消息标识. 本参数取如下值之一: WM_LBUTTONDOWN, WM_LBUTTONUP, WM_MOUSEMOVE, WM_MOUSEWHEEL, WM_MOUSEHWHEEL, WM_RBUTTONDOWN, 或 WM_RBUTTONUP.
 67 lParam
 68 [输入参数] 指定 MSLLHOOKSTRUCT 结构体. 其中包含坐标等信息。
 69 */
 70 // CE6 的鼠标 HOOK 的响应速度很慢, 原因不明!
 71 extern "C" MOUSEHOOK_API LRESULT MouseHookProc(int nCode, WPARAM wParam, LPARAM lParam)
 72 {
 73   static POINT ptPre;
 74
 75 #if _DEBUG
 76    RETAILMSG(1,(L"[Mouse HOOK]Mouse Proc,nCode is: %d\r\n",nCode));
 77    RETAILMSG(1,(L"[Mouse HOOK]Mouse Proc,wParam is: %d\r\n",wParam));
 78 #endif
 79   PMSLLHOOKSTRUCT pMouseHookStruct = (PMSLLHOOKSTRUCT)lParam;
 80 #if _DEBUG
 81   RETAILMSG(1,(L"[Mouse HOOK]Mouse Proc,mouseData is: %d\r\n",pMouseHookStruct->mouseData));
 82   RETAILMSG(1,(L"[Mouse HOOK]Mouse Proc,dwExtraInfo is: %d\r\n",pMouseHookStruct->dwExtraInfo));
 83 #endif
 84
 85   if(HC_ACTION != nCode)
 86   {
 87     return CallNextHookEx(ghMouseHook, nCode, wParam, lParam);
 88   }
 89
 90   if(ptPre.x != pMouseHookStruct->pt.x || ptPre.y != pMouseHookStruct->pt.y)
 91   {
 92 #if _DEBUG
 93     RETAILMSG(1,(L"[Mouse HOOK]Mouse Proc,pt is: %d,%d(%d,%d)\r\n",pMouseHookStruct->pt.x,pMouseHookStruct->pt.y,ptPre.x,ptPre.y));
 94 #endif
 95     ptPre = pMouseHookStruct->pt;
 96
 97     // 若注释掉此句, 则不再响应鼠标操作
 98     return CallNextHookEx(ghMouseHook, nCode, wParam, lParam);  // 继续传递消息
 99   }
100
101   return TRUE;
102 }
103
104 // 调用示例
105
106 // mouse hook test
107 typedef void (*pInstallMouseHook)(void);
108 typedef void (*pUnMouseHook)(void);
109 HINSTANCE ghMouseModule = NULL;
110 pInstallMouseHook  InMouseHook = NULL;
111 pUnMouseHook  UnMouseHook = NULL;
112
113
114 ghMouseModule = LoadLibrary(L"\\AppStore\\SystemInfo\\MouseHook.dll");
115 if(ghMouseModule)
116 {
117   InMouseHook = (pInstallMouseHook)GetProcAddress(ghMouseModule,L"InstallMouseHook");
118   UnMouseHook = (pUnMouseHook)GetProcAddress(ghMouseModule,L"UnMouseHook");
119 }
120 if(NULL != InMouseHook)
121 {
122   InMouseHook();
123 }