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Question : CreateToolhelp32Snapshot (of modules) Error 5 access denied
l'm creating MFC DLL to hook keyboard.
i'm using vc++ 6, windows 7and internet explorer 8.
Problem created to hook keyboard from internet explorer 8, in seance of windows 7
hkb=SetWindowsHookEx(WH_KE
YBOARD,(HO
OKPROC)Key
boardProc,
hins, 0);
void printError( TCHAR* msg )
{
DWORD eNum;
TCHAR sysMsg[256];
TCHAR* p;
eNum = GetLastError( );
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSE
RTS,
NULL, eNum,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
sysMsg, 256, NULL );
// Trim the end of the line and terminate it with a null
p = sysMsg;
while( ( *p > 31 ) || ( *p == 9 ) )
++p;
do { *p-- = 0; } while( ( p >= sysMsg ) &&
( ( *p == '.' ) || ( *p < 33 ) ) );
// Display the message
CString str1;
str1.Format( "\n WARNING: %s failed with error %d (%s)", msg, eNum, sysMsg );
AfxMessageBox(str1);
}
bool getModule(DWORD processID, CString* strPath)
{
HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
MODULEENTRY32 me32;
hModuleSnap = CreateToolhelp32Snapshot(T
H32CS_SNAP
MODULE, processID);
if( hModuleSnap == INVALID_HANDLE_VALUE )
{
printError( "CreateToolhelp32Snapshot (of modules)" ); // Show cause of failure
return 1;
}
me32.dwSize = sizeof (MODULEENTRY32);
if(!Module32First( hModuleSnap, &me32))
{
printError( "CreateToolhelp32Snapshot (of modules)" );
printError( "Module32First" ); // Show cause of failure
CloseHandle( hModuleSnap ); // Must clean up the snapshot object!
//return 1;
}
else
*strPath = me32.szExePath;
CloseHandle (hModuleSnap);
return 0;
}
Error : CreateToolhelp32Snapshot (of modules) Error 5 access denied
unable to retrieve the module list from internet explorer 8 using CreateToolhelp32Snapshot. CreateToolhelp32Snapshot produced an "access denied" error. This is a privileges problem.
please give me solution, how to handle keyboard hook from internet explorer.
Answer : CreateToolhelp32Snapshot (of modules) Error 5 access denied
does it work with anything else? I suppose you need to run it as Administrator to get proper permissions
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