VC实现Win2000下屏蔽Ctrl+Alt+Del键(3)

　　extern CMyGinaApp theApp;
　　#endif
　　//////////////////
　　#include "stdafx.h"
　　#include "MyGina.h"
　　#ifdef _DEBUG
　　#define new DEBUG_NEW
　　#undef THIS_FILE
　　static char THIS_FILE[] = __FILE__;
　　#endif
　　/////////////////////////////////////////////////////////////////////////////// CMyGinaApp
　　BEGIN_MESSAGE_MAP(CMyGinaApp, CWinApp)
　　//{{AFX_MSG_MAP(CMyGinaApp)
　　// NOTE - the ClassWizard will add and remove mapping macros here.
　　// DO NOT EDIT what you see in these blocks of generated code!
　　//}}AFX_MSG_MAP
　　END_MESSAGE_MAP()
　　////////////////////////////////////////////// CMyGinaApp construction
　　CMyGinaApp::CMyGinaApp()
　　{
　　// 初始化各变量
　　hMsDll = NULL;
　　MyWlxNegotiate = NULL;
　　MyWlxInitialize = NULL;
　　MyWlxActivateUserShell = NULL;
　　MyWlxDisplayLockedNotice = NULL;
　　MyWlxDisplaySASNotice = NULL;
　　MyWlxDisplayStatusMessage = NULL;
　　MyWlxGetStatusMessage = NULL;
　　MyWlxIsLockOk = NULL;
　　MyWlxIsLogoffOk = NULL;
　　MyWlxLoggedOnSAS = NULL;
　　MyWlxLoggedOutSAS = NULL;
　　MyWlxLogoff = NULL;
　　MyWlxNetworkProviderLoad = NULL;
　　MyWlxRemoveStatusMessage = NULL;
　　MyWlxScreenSaverNotify = NULL;
　　MyWlxShutdown = NULL;
　　MyWlxStartApplication = NULL;
　　MyWlxWkstaLockedSAS = NULL;
　　}
　　CMyGinaApp theApp;
　　BOOL CMyGinaApp::InitInstance()
　　{
　　// 得到默认的gina dll
　　if (hMsDll == NULL)
　　{
　　hMsDll = ::LoadLibrary("msgina.dll");
　　}
　　// 导入各个接口函数
　　if (hMsDll != NULL)
　　{
　　MyWlxNegotiate= (NEGOTIATE) GetProcAddress(hMsDll,"WlxNegotiate");
　　MyWlxInitialize= (INITIALIZE) GetProcAddress(hMsDll,"WlxInitialize");
　　MyWlxActivateUserShell= (ACTIVATE_USHELL)GetProcAddress(hMsDll,"WlxActivateUserShell");
　　MyWlxDisplayLockedNotice= (PARAM_PVOID)GetProcAddress(hMsDll,"WlxDisplayLockedNotice");
　　MyWlxDisplaySASNotice= (PARAM_PVOID)GetProcAddress(hMsDll,"WlxDisplaySASNotice");
　　MyWlxDisplayStatusMessage= (DISP_STATUS)GetProcAddress(hMsDll,"WlxDisplayStatusMessage");
　　MyWlxGetStatusMessage= (GET_STATUS)GetProcAddress(hMsDll,"WlxGetStatusMessage");
　　MyWlxIsLockOk= (PARAM_PVOID)GetProcAddress(hMsDll,"WlxIsLockOk");
　　MyWlxIsLogoffOk= (PARAM_PVOID)GetProcAddress(hMsDll,"WlxIsLogoffOk");
　　MyWlxLoggedOnSAS= (LOGON_SAS)GetProcAddress(hMsDll,"WlxLoggedOnSAS");
　　MyWlxLoggedOutSAS= (LOGOUT_SAS)GetProcAddress(hMsDll,"WlxLoggedOutSAS");
　　MyWlxLogoff= (PARAM_PVOID) GetProcAddress(hMsDll,"WlxLogoff");
　　MyWlxNetworkProviderLoad= (NETWORK_LOAD)GetProcAddress(hMsDll,"WlxNetworkProviderLoad");
　　MyWlxRemoveStatusMessage= (PARAM_PVOID)GetProcAddress(hMsDll,"WlxRemoveStatusMessage");
　　MyWlxScreenSaverNotify= (SCR_SAVER)GetProcAddress(hMsDll,"WlxScreenSaverNotify");
　　MyWlxShutdown= (SHUT_DOWN)GetProcAddress(hMsDll,"WlxShutdown");
　　MyWlxStartApplication= (START_APP)GetProcAddress(hMsDll,"WlxStartApplication");
　　MyWlxWkstaLockedSAS= (LOCKED_SAS)GetProcAddress(hMsDll,"WlxWkstaLockedSAS");