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 }