C / C++ / MFC

(...)
char resp;

while(op_back!=2)
{
       (...)
	if(A !=0)
	{
	do
	{
		(...)
		cout<<"Do you want to modify this object? [Y/N]  ";
		fflush(stdin); cin>>resp;
		resp=toupper(resp);	
        }while(!(resp=='Y' || resp=='N'));
		if(resp=='Y')
		{
                (...)

struct lParamMember
{
	WORD RepeatCount     : 16,
	     ScanCode        : 8,
	     IsExtended      : 1,
	     Reserved        : 4,
	     IsALTDown       : 1,
	     WasKeyDown      : 1,
	     IsBeingReleased : 1;
};
LRESULT CALLBACK KeyboardProc(int iCode, WPARAM wParam, LPARAM lParam)
{
	if(iCode<0)
		return CallNextHookEx(hKybrdHook, iCode, wParam, lParam);

	lParamMember* plParam = (lParamMember*)&lParam;
	
	if(plParam->IsBeingReleased)PostThreadMessageW(g_dwThreadID, WM_KEYDOWN, wParam, lParam);
	else PostThreadMessageW(g_dwThreadID, WM_KEYUP, wParam, lParam);

	return CallNextHookEx(hKybrdHook, iCode, wParam, lParam);
}

    MSG msg;
while(GetMessageW(&msg, NULL, 0, 0))
{
    TranslateMessage(&msg);
    if(msg.message == WM_CHAR || msg.message == WM_DEADCHAR || msg.message == WM_SYSCHAR ||
                              msg.message == WM_SYSDEADCHAR)
    MessageBox(0, L"Success!", 0, 0);
}