C / C++ / MFC Discussion Boards

Re: Connecting to a datasource

si_692-Jun-04 2:53

si_69

2-Jun-04 2:53

thanks but that doesnt work either

i dont use OpenEx

it is an ado connection if that helps

simon

Re: Connecting to a datasource

David Crow2-Jun-04 3:14

David Crow

2-Jun-04 3:14

si_69 wrote:
but i cant get that to work

Why? What is the value of CnnStr after the assignment? It should be the same as the first value you've shown being passed to Open().

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Connecting to a datasource

si_692-Jun-04 3:25

si_69

2-Jun-04 3:25

im a bit crap a c++

but if i use

CString CnnStr="DSN=CP_CMIS_CON;UID="+simon11+";PWD="+simon12+"";
hr = cpDbCMIS->Open(CnnStr,"","",-1);

then i get a complier error

error C2664: 'Connection15::Open' : cannot convert parameter 1 from 'CString' to '_bstr_t'

if i use GermanGeorge's example

CString tmp="DSN=CP_CMIS_CON;UID="+simon11+";PWD="+simon12;
cpDbCMIS->OpenEx(tmp, CDatabase::noOdbcDialog );

then i get the compiler error

error C2039: 'OpenEx' : is not a member of '_Connection'

Re: Connecting to a datasource

David Crow2-Jun-04 3:34

David Crow

2-Jun-04 3:34

How about:

hr = cpDbCMIS->Open(_bstr_t((LPCTSTR) CnnStr), "", "", -1);

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Connecting to a datasource

si_692-Jun-04 3:37

si_69

2-Jun-04 3:37

superb, thanks

Big Grin | :-D

experts guide

ykutanoor2-Jun-04 0:17

ykutanoor

2-Jun-04 0:17

If I want to know the dependancies of IE patch ?how should I know?
where are these patch ids stored.
How should one come to know that a IE has patch?
How should one come to know that a machine has a patch?

Re: experts guide

David Crow2-Jun-04 3:25

David Crow

2-Jun-04 3:25

Try

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\MinorVersion

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

How to get Ip

gamitech1-Jun-04 23:42

gamitech

1-Jun-04 23:42

can someone please tell me a way to gwet the IP of the localhost. A function or a way to receive it in a buffer.
I certainly hope you can help me.
And how can I get the ip of a computer in the localnetwork because in most cases you getr the ip of the Net provider of that whole local network.
Please adive at least with a function for the localhost.
Thank you

gabby

Re: How to get Ip

Nirav Doshi1-Jun-04 23:54

Nirav Doshi

1-Jun-04 23:54

Check the NetWkstaGetInfo() from the Platform SDK! If this is not quite helpful, you may consider another API from the networking API in the PSDK!

* Don't wish it was easier, wish you were better! *

Re: How to get Ip

gamitech1-Jun-04 23:58

gamitech

1-Jun-04 23:58

I wish I were better really I am really trying to get there
Thank you for the help

gabby

Re: How to get Ip

Antony M Kancidrowski1-Jun-04 23:57

Antony M Kancidrowski

1-Jun-04 23:57

You can get a list of the interfaces in which you can get the IP address

WORD		versionRequested;
int		wsError;
WSADATA		winsockData; 
SOCKET		s;
DWORD		bytesReturned;
char*		pAddrString;
SOCKADDR_IN*	pAddrInet;
u_long		SetFlags;
INTERFACE_INFO	localAddr[10];  // Assume no more than 10 IP interfaces 
int		numLocalAddr; 

versionRequested = MAKEWORD(2, 2);

wsError = WSAStartup(versionRequested, &winsockData); 

if (wsError)
  return;

if ((s = WSASocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, 0, 0)) == INVALID_SOCKET)
{
  WSACleanup();
  return;
}

// Enumerate all IP interfaces
wsError = WSAIoctl(s, SIO_GET_INTERFACE_LIST, NULL, 0, &localAddr, sizeof(localAddr), &bytesReturned, NULL, NULL);

if (wsError == SOCKET_ERROR)
{
  closesocket(s);
  WSACleanup();

  return;
}

closesocket(s);

// Display interface information
numLocalAddr = (bytesReturned / sizeof(INTERFACE_INFO));

for (int i = 0; i < numLocalAddr; i++) 
{
  // Loop through all interfaces and get the IP address
}

WSACleanup();

Hope that helps.

Ant.

Re: How to get Ip

gamitech2-Jun-04 0:01

gamitech

2-Jun-04 0:01

thanks dude Smile | :)

that's cool

gabby

Re: How to get Ip

gamitech2-Jun-04 0:02

gamitech

2-Jun-04 0:02

thanks dude

gabby

Re: How to get Ip

David Crow2-Jun-04 3:28

David Crow

2-Jun-04 3:28

euacela wrote:
can someone please tell me a way to gwet the IP of the localhost.

Call gethostname() followed by gethostbyname().

euacela wrote:
And how can I get the ip of a computer in the localnetwork...

Use gethostbyname() for this, too.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

overloading the iostream operators ( >> and <<)

kaspasewe1-Jun-04 23:09

kaspasewe

1-Jun-04 23:09

i've tried overloading the operator >> and <<... but the compiler keeps complaining that i cant acess private data. this is after using a friend fuction. all other friend fuctions can acess private data except these two function. i am currently using VC++ 6.0 can anybody tell me whats the problem.
hre is an example of the code
//point class
class mypoints
{
private:
int x;
int y;
public:
//constructors
friend istream& operator >> (istream& s, mypoint& p);
friend ostream& operator << (ostream& s, mypoint& p);
};
//////////////////////////////////////////////
//function defination
istream& operator >> (istream& s, mypoint& p) {
cout<<"enter the x value : ";s>>p.x;
cout<<"enter the y value : ";s>>p.y;
return s;
}
what could be the problem
help !!!!

THE STUDENT

Re: overloading the iostream operators ( >> and <<)

gamitech1-Jun-04 23:52

gamitech

1-Jun-04 23:52

what is the exactly the error. probably the compiler has a conflict with the dynamic linked library that VC++ is using or the static library. What is the goal of your program ?. Give me the lib files you are using and a bigger part of your code.
I could help you find another way

gabby

Re: overloading the iostream operators ( >> and <<)

kaspasewe4-Jun-04 0:08

kaspasewe

4-Jun-04 0:08

i think its a compiler problem because all the other friends function can access the private member data execept the one with the stream objects. so how do you fix the compiler conflict.
i have tried reinstalling VC++ and include its components but its still giving me the same messsage " ..... cannot access private member... see declaration of the the variable "

changin rezolution in a Win32 APP

gamitech1-Jun-04 23:09

gamitech

1-Jun-04 23:09

Can someone please tell me how can I change the resolution of the scren in a win32 application. Hope you don't have to import functions from the Microsoft DX. Something as simple as you can.

gabby

Re: changin rezolution in a Win32 APP

Frank K2-Jun-04 0:34

Frank K

2-Jun-04 0:34

Hi,

try
ChangeDisplaySettings(...), or
ChangeDisplaySettingsEx(...)

MSDN: device context functions[^]

HTH
Frank

Re: changin rezolution in a Win32 APP

gamitech2-Jun-04 0:55

gamitech

2-Jun-04 0:55

thank you very much
This will help me a lot

gabby

howto Determine encoding of a text file

ananttrivedi1-Jun-04 22:55

ananttrivedi

1-Jun-04 22:55

how can I determine, using C++ or Win32 api which encoding is a Text file written in ?
I have a text file in either unicode or utf8 or ascii and I need to determine which encoding the file is written in. the solution about checking the BOM to verify the encoding dosnt work as not all text files have a BOM associated. eg: vrmlutf8 encoded files normally have a missing BOM.

Re: howto Determine encoding of a text file

RChin1-Jun-04 23:33

RChin

1-Jun-04 23:33

You can use the IsTextUnicode() API function to test your file. It uses an array of test, including statistical and/or BOM to see if your file is UNICODE or not. It is not full proof, but I haven't had any problems with its results so far.

MSDN Link[^]

I Dream of Absolute Zero

CRectTracker problem?

raed1-Jun-04 22:39

raed

1-Jun-04 22:39

Hello:
Could anyone provide me with information in how to move multiple rectangles in screen by mouse using CRectTracker.

I recently build application that draws rectangles by mouse,
and i can select rectangles one at atime and also select multiple shapes ,and move/resize one shape at same time.
my problem in moving multiple shape using CRectTracker.
i read many example like DRAWCLI in MFC sample, but it didnt using CRectTracker.

Thanks

Using latest SDK with Visual C++ 6.0

Anonymous1-Jun-04 22:37

Anonymous

1-Jun-04 22:37

I have some code I want to compile. I have installed Visual C++ 6.0 but I get a build error:

error C2065: 'INTERNET_CONNECTION_OFFLINE' : undeclared identifier

I understand I need to use a later SDK so I have downloaded the very latest one and installed it but my problem is not solved. I think I must now direct Visual C++ to the SDK directories instead of the old ones. Is this correct? How must I do it?

Re: Using latest SDK with Visual C++ 6.0

Nirav Doshi1-Jun-04 23:09

Nirav Doshi

1-Jun-04 23:09

It could be because you've not included <WinInet.h>>in the right place (maybe!)

Anonymous wrote:
I understand I need to use a later SDK so I have downloaded the very latest one and installed it

I suppose you are speaking about the Platform SDK here... If you have the latest, you need to move them up in the directories listing for include files & library files in the Project settings dialog box.

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