C / C++ / MFC

<br />
BOOL AddEventSource(<br />
   LPTSTR pszLogName, // Application log or a custom log<br />
   LPTSTR pszSrcName, // event source name<br />
   LPTSTR pszMsgDLL,  // path for message DLL<br />
   DWORD  dwNum)      // number of categories<br />
{<br />
   HKEY hk; <br />
   DWORD dwData, dwDisp; <br />
   TCHAR szBuf[MAX_PATH]; <br />
<br />
   // Create the event source as a subkey of the log. <br />
 <br />
   wsprintf(szBuf, <br />
      "SYSTEM\\CurrentControlSet\\Services\\EventLog\\%s\\%s",<br />
<br />
//Shouldn't it be "%SYSTEM%"?<br />
      pszLogName, pszSrcName); <br />
 <br />
   if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, szBuf, <br />
          0, NULL, REG_OPTION_NON_VOLATILE,<br />
          KEY_WRITE, NULL, &hk, &dwDisp)) <br />
   {<br />
      printf("Could not create the registry key.");<br />
// Why do we need to record an error message if it's true? <br />
      return FALSE;<br />
   }<br />
 <br />
   // Set the name of the message file. <br />
 <br />
   if (RegSetValueEx(hk,              // subkey handle <br />
           "EventMessageFile",        // value name <br />
           0,                         // must be zero <br />
           REG_EXPAND_SZ,             // value type <br />
           (LPBYTE) pszMsgDLL,        // pointer to value data <br />
           (DWORD) lstrlen(pszMsgDLL)+1)) // length of value data <br />
   {<br />
      printf("Could not set the event message file."); <br />
      return FALSE;<br />
   }<br />
 <br />
   // Set the supported event types. <br />
 <br />
   dwData = EVENTLOG_ERROR_TYPE | EVENTLOG_WARNING_TYPE | <br />
        EVENTLOG_INFORMATION_TYPE; <br />
 <br />
   if (RegSetValueEx(hk,      // subkey handle <br />
           "TypesSupported",  // value name <br />
           0,                 // must be zero <br />
           REG_DWORD,         // value type <br />
           (LPBYTE) &dwData,  // pointer to value data <br />
           sizeof(DWORD)))    // length of value data <br />
   {<br />
      printf("Could not set the supported types."); <br />
      return FALSE;<br />
   }<br />
 <br />
   // Set the category message file and number of categories.<br />
<br />
   if (RegSetValueEx(hk,              // subkey handle <br />
           "CategoryMessageFile",     // value name <br />
           0,                         // must be zero <br />
           REG_EXPAND_SZ,             // value type <br />
           (LPBYTE) pszMsgDLL,        // pointer to value data <br />
           (DWORD) lstrlen(pszMsgDLL)+1)) // length of value data <br />
   {<br />
      printf("Could not set the category message file."); <br />
      return FALSE;<br />
   }<br />
 <br />
   if (RegSetValueEx(hk,      // subkey handle <br />
           "CategoryCount",   // value name <br />
           0,                 // must be zero <br />
           REG_DWORD,         // value type <br />
           (LPBYTE) &dwNum,   // pointer to value data <br />
           sizeof(DWORD)))    // length of value data <br />
   {<br />
      printf("Could not set the category count."); <br />
      return FALSE;<br />
   }<br />
<br />
   RegCloseKey(hk); <br />
   return TRUE;<br />
}<br />

<br />
#define MAINHOOK_API _ _declspec(ddlexport)<br />
<br />
#define CCONV _stdcall<br />
#define NOMANGLE<br />
<br />
#define WH_KEYBOARD 2<br />
#define HC_ACTION 0<br />
<br />
typedef struct tagKBDLLHOOKSTRUCT {<br />
	DWORD vkCode;<br />
	DWORD scanCode;<br />
	DWORD flags;<br />
	DWORD time;<br />
	DWORD dwExtraInfo;<br />
} KBDLLHOOKSTRUCT, FAR *LPKBDLLHOOKSTRUCT, *PKBDLLHOOKSTRUCT;<br />
<br />
LRESULT CALLBACK KeyboardFunc (int nCode, WPARAM wParam, LPARAM lParam );<br />
<br />
#ifdef _ _cplusplus<br />
extern "C" {<br />
#endif<br />
  MAINHOOK_API int InstallFilterDLL(void);<br />
  MAINHOOK_API int UnInstallFilterDLL(void);<br />
#ifdef _ _cplusplus<br />
}<br />
#endif<br />
<br />

warning C4067: unexpected tokens following preprocessor directive - expected a newline
error C2485: 'ddlexport' : unrecognized extended attribute
error C2144: syntax error : missing ';' before type 'int'
error C2501: '_' : missing storage-class or type specifiers
fatal error C1004: unexpected end of file found"