Hi All,
I have created one MFC Dialog Based application.now if i am
running the application its working fine,instead of closing
he application i minimized the application,if i run the
application again,i am getting the Dialog.

I want to prevent the calling of application multiple times.
please give me the code and let me know in which method i
need to make changes.

Praveer

Answer Posted / krishna

Try this....

//...
BOOL CWinAppEx::EnableTokenPrivilege( LPCTSTR
lpszSystemName,
BOOL
bEnable /*TRUE*/ )
{
ASSERT( lpszSystemName != NULL );
BOOL bRetVal = FALSE;

if( ::GetVersion() < 0x80000000 ) // NT40/2K/XP //
afxData ???
{
HANDLE hToken = NULL;
if( ::OpenProcessToken( ::GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
&hToken ) )
{
TOKEN_PRIVILEGES tp = { 0 };
if( ::LookupPrivilegeValue( NULL,
lpszSystemName, &tp.Privileges[0].Luid ) )
{
tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes = ( bEnable ?
SE_PRIVILEGE_ENABLED : 0 );


// To determine whether the function
adjusted all of the
// specified privileges, call GetLastError:

if( ::AdjustTokenPrivileges( hToken, FALSE,
&tp,
sizeof( TOKEN_PRIVILEGES ),
(PTOKEN_PRIVILEGES)NULL, NULL ) )
{
bRetVal = ( ::GetLastError() ==
ERROR_SUCCESS );
}
}
::CloseHandle( hToken );
}
}

return bRetVal;
}
//...

Is This Answer Correct ?    0 Yes 1 No



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