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Hi,
I must use TStream in an application but I don't know which header to use with it.
Thank you for more infos about it 
Florian
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Try asking in a Pascal/Delphi forum  ;);)
![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
-Dominik
_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??
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Arg... ok thanks 
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 I am in trouble. I am trying hard to send my tcp packet on the network but the packet is not going. I am using this strategy to do it.
Please tell me if I am setiing any fault attributes.
1. create tcp packet using tcp structure.
2. Send the Packet using "Send to" method.
SOCKET s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
struct ipheader *iph = (struct ipheader *) datagram;
struct tcpheader *tcph = (struct tcpheader *) datagram + sizeof (struct ipheader);
struct sockaddr_in sin;
PS_HDR pseudo_header;
sin.sin_addr.s_addr = inet_addr ("192.168.2.64");
iph->ip_hl = 5;
iph->ip_v = 4;
iph->ip_tos = 0;
iph->ip_len = sizeof (struct ipheader) + sizeof (struct tcpheader);
iph->ip_id = 1;
iph->ip_off = 0;
iph->ip_ttl = 255;
iph->ip_p = 6;
iph->ip_sum = 0;
iph->ip_src = inet_addr ("192.168.2.61");
iph->ip_dst = sin.sin_addr.s_addr;
tcph->th_sport = htons (1234);
tcph->th_dport = htons (PORT);
tcph->th_seq = rand();
tcph->th_ack = 0;
tcph->th_x2 = 0;
tcph->th_off = 0;
tcph->th_flags = 2; // SYN
tcph->th_win = htons(65535);
tcph->th_sum = 0;
tcph->th_urp = 0;
// Build the Psuedo Header
pseudo_header.source_address = inet_addr ("192.168.2.61");
pseudo_header.dest_address = sin.sin_addr.s_addr;
pseudo_header.placeholder = 0;
pseudo_header.protocol = IPPROTO_TCP;
pseudo_header.tcp_length = htons(sizeof(tcpheader));
tcph->th_sum = checksum((unsigned short *)&pseudo_header, sizeof(pseudo_header));
iph->ip_sum = checksum((unsigned short *)&iph, sizeof(ipheader));
// ENABLE IPHDRINCL
if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, (char *)&bOpt, sizeof(int)) == SOCKET_ERROR)
{
printf("setsockopt(IP_HDRINCL) failed: %d\n", WSAGetLastError());
return -1;
}
// Send The Packet
if (sendto(s, datagram, sizeof(datagram), 0, (SOCKADDR *)&sin, sizeof(sin)) == SOCKET_ERROR)
{
printf("sendto() failed: %d\n", WSAGetLastError());
return -1;
}
printf("message sent");
//The code is executing perfectly but the packet does not reach its destination.
//plz help me
Reply me soon
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How do you know the packet does not reach its destination? Maybe it does but the server ignores it or misinterprets the packet as junk.
You implemented datagram. Why?
socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
Kuphryn
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MR kuphryn Firstly I know it because I have a network traffic sniffer running on the detinaion of the program so when packet will reach it will show it.
Second I am not using the datagram socket sock_dgram but creating the tcp packet
socket(AF_INET, SOCK_RAW, IPPROTO_RAW)
IP.PROTOCOL =IPPROTO_TCP
using raw socket please if you can help me by any reference any helping material, code , or anything please do me a favour.
Reply me soon
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According to the rules of C++, a constructor for a class taking a single parameter, could be used to implicitly convert the value of the constructor's parameter type to a value of the constructor's class type.
That means, I ought to be able to convert an "int" value, to a "Number" value. That is not happening. Can anybody see why?
Thanks!
====================================
class Acct;
class Number
{
public:
Number(int i=0) : n(i) {}
Number(const Acct& ac) : acct(ac) {}
void print(Number nbr) { cout<< " Nbr: " << nbr <<endl; }
private:
Acct acct;
int n;
};
----------------------------------------------
int main()
{
Number num;
num.print(99);
return 0;
}
========================
Because it's an "int" I'm printing (as a result of the conversion), I should be able to use the regular standard I/O operators to output the result. The compiler doesn't believe so, and is complaining about that too.
William
Fortes in fide et opere!
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William,
The conversion from int to Number is legitimate in C++, and my VC++ 6.0 compiles it fine. But the print function wont compile, since you are printing a 'Number' and not an int.The compiler has no idea about printing the Number type.To do this you need to overload the insertion operator "<<".
~ Vimal
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Thanks Vimal.
You make a lot of sense and you are correct. However, I had done just what you recommended before posting the note, and everything did work for me.
But when examined, overloading the stream insertion operator "<<" didn't looked like it bought me anything, because I could have obtained the same result if I had not used constructor conversion and had done things the regular way, using an "int" instead for my print() parameter.
I figured as part of the ctor conversion technique, one of the benefits I would obtain, would be NOT having to overload the "<<" operator. Secondly (and this is the part that made me refused to give up), I thought somebody might know of a way (that I didn't) to make what I was trying to achieve, work.
I thank you for your response because it tells me what I was dreaming of doing, will just not work.
Thanks again!
William
Fortes in fide et opere!
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Try changing the print to take a reference:
void print (Number &nbr)
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Friends, i am doing something like:
using namespace std;
hash_set<string> myhashstring;
myhashstring.insert("USA");
As such program is giving me error that:
(38): error C2440: 'type cast' : cannot convert from 'const std::string' to 'size_t'
But if i use "set" instead of "hash_set" the program works normally. Any one guess whats the problem ???
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hash_set is a container. In your code, you did not include the correct template parameters.
http://www.sgi.com/tech/stl/hash_set.html
Kuphryn
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I try to make a CComboBox dynamically which have owner draw.
first, I tried it myself.
It compiled ok, but "Unhandled Access Violation" when execute.
So, I find exercises about ComboBox which have owner draw in CodeProject and Codeguru.
Though So many exercies are, they are not dynamically, but static in dialog
How can I Create CComboBox dynamically which have owner draw?
to be Ace.
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Kindly tell what is a #pragma and why is it a must to use it at some places
Gaurav Gumber
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#pragma gives commands to the compiler. The ones I commonly use are pack to change how struct members are arranged in memory, and comment(lib) to make the linker use a particular import LIB file.
--Mike--
THERE IS NO THERE IS NO BUT THERE IS
MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT
Homepage | RightClick-Encrypt | 1ClickPicGrabber
"You have Erica on the brain" - Jon Sagara to me
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I would like to achive the following:
91.26464 --> 91.26 (2 digits after the floating point at most)
91.20464 --> 91.2 (because of the 0 at the second position)
91.00464 --> 91 (first 2 digits sfter the floating point are 00)
I tried to use setpresicion and setiosflags but it seems I don't know how to get these results.
-----------------------
Go USA Go
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I have a vexing problem related to CListCtrls and in-place edit.
Very standard stuff here, the CListCtrl is on CPropertyPage.
Inplace editing is called for 4 SubItems/Columns and works perfectly however when
SubItems greater than 0 are dblClicked (i.e list.EditLabel() & OnBeginLabelEdit) the ListItem in column 0 becomes blank until editing is complete (i.e OnEndLabelEdit) when all is restored and OK.
Somehow the SubClassed EditCtrl Overwrites the list.Item before being repositioned over SubItem?
DWORD dwStyle = LVS_REPORT | LVS_SHOWSELALWAYS | LVS_CHILDRES
WS_CHILD | WS_VISIBLE | WS_GROUP | WS_TABSTOP | LVS_EDITLABELS ;
DWORD dwEXStyle = LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES | WS_EX_CLIENTEDGE;
======OnBeginLabelEdit Handler========
CRect rc;
c_List.GetSubItemRect(iItem, iSubItem, LVIR_LABEL, rc );
HWND hWnd = (HWND)c_List.SendMessage(LVM_GETEDITCONTROL);
ASSERT(hWnd != NULL);
VERIFY(m_SubClassedCEdit.SubclassWindow(hWnd));
ASSERT(::IsWindow(m_SubClassedCEdit.m_hWnd));
m_SubClassedCEdit.m_Rec = rc;
m_SubClassedCEdit.SetWindowText(c_List.GetItemText(iItem, iSubItem));
=========================
It must be obvious but I cannot see it. I have tried Invalidating the item, the list ...?$#
Anyone have a working example of item/subitem in-place edit of CListCtrl?
If there are any kind souls out there - please help
Regards In Advance
Bonnie
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While I was looking at an example of class operations I saw something I never seen before. Where the constructor for class Position is declared there is a “:x(xx),y(yy)” statement and I can’t understand what it is doing. I seems like it is using float x and y as functions, and this even before the “{}”. Please explain this statement, what it does, how it does it, what else strange statements like this you can do and if there is any where I can read more about this?
#include<iostream.h><br />
<br />
class Position {<br />
float x,y;<br />
public:<br />
Position(float xx, float yy=0):x(xx),y(yy) {}<br />
Position operator + (const Position& e) const;<br />
Position operator - (const Position& e) const;<br />
<br />
void Display(void)<br />
{ cout << "(" << x << ", " << y << ")" << endl; }<br />
void Input(void)<br />
{ cout << "enter x och y:"; cin >> y;; }<br />
};<br />
<br />
Position Position::operator + (const Position& e) const<br />
{<br />
Position res = *this;<br />
res.x += e.x;<br />
res.y += e.y;<br />
return (res);<br />
}<br />
<br />
Position Position::operator - (const Position& e) const<br />
{<br />
Position res = *this;<br />
res.x -= e.x;<br />
res.y -= e.y;<br />
return (res);<br />
}
Aidman » over and out
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Hi,
I've overide a WM_KEY and WM_GETDLGCODE of an CEdit to know when the user presse "enter" key like this :
UINT CMyEdit::OnGetDlgCode()
{
return DLGC_WANTALLKEYS;
}
void CMyEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
if (nChar==0x0000000d)
Funtion();
CEdit::OnKeyDown(nChar, nRepCnt, nFlags);
}
this way, i can call Function() when user press "enter"... Unfortunalty, there is a "bip" (sound system) when the "enter" key is pressed...
Does anyone know how to disable this "bip" ??
Thanks yyou veru much
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I am writing a C++ DLL which will be called by Visual Basic for Applications in Excel. Should I be using BOOL vs. bool as the type of arguments passed to/from the DLL. For some reason bool doesn't work ... Both C++'s true and false are interpreted as True in VB. Does anyone know why?
Is bool just a 1-byte character whereas BOOL is like an int? What is Boolean type in VB equivalent to in C++?
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Anton A. Loukine wrote:
Should I be using BOOL vs. bool
BOOL
and tell the VB users to use a Long on their end.
-c
Image tools: ThumbNailer, Bobber, TIFFAssembler
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So BOOL is a 32-bit integer?
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Anton A. Loukine wrote:
So BOOL is a 32-bit integer?
yep.
it's #define'd as int or long, depending on which set of #include files you happen to pick up. but they're both 32 bits in Win32.
-c
Image tools: ThumbNailer, Bobber, TIFFAssembler
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You should be using VARIANT_BOOL, which is a 2-byte type and the VB/VBA version of a boolean. Use the two constants VARIANT_TRUE and VARIANT_FALSE for the values.
--Mike--
THERE IS NO THERE IS NO BUT THERE IS
MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT
Homepage | RightClick-Encrypt | 1ClickPicGrabber
"You have Erica on the brain" - Jon Sagara to me
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