a question of winpcap - C / C++ / MFC Discussion Boards

Re: CListCtrl

David Crow13-Mar-09 7:57

David Crow

13-Mar-09 7:57

I was just curious as the docs mentioned it in the context of a multi-select list control.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: CListCtrl

«_Superman_»13-Mar-09 17:59

«_Superman_»

13-Mar-09 17:59

Sure it does. I do it all the time. Smile | :)

But I realized that it does only recently.
Until then I used to do CListCtrl::GetFirstSelectedItemPosition and CListCtrl::GetNextSelectedItem

«_Superman_»
I love work. It gives me something to do between weekends.

flickering while displaying Images on dialog box

hemlat13-Mar-09 3:14

hemlat

13-Mar-09 3:14

Hi,
I have created Dialog box in my application.I have added Scroll bar to that dialog.I am displaying images on that dialog( 8 Images for one scroll).If I Scrolling down I am seeing flickers on dialog box images.
Can any one help me.

Re: flickering while displaying Images on dialog box

«_Superman_»13-Mar-09 4:02

«_Superman_»

13-Mar-09 4:02

How are you scrolling the images?

I assume you're first clearing all images and then redrawing them.
Try not to erase the diagrams first. Just draw over the diagrams.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: flickering while displaying Images on dialog box

hemlat13-Mar-09 23:58

hemlat

13-Mar-09 23:58

First I am creating static control.I am taking this code in for loop

myStatic[i] = new CStatic
myStatic[i]->Create(_T(""),WS_CHILD|WS_VISIBLE|SS_BITMAP,
			          CRect(x1,y1,x2,y2),this);

After that I am using that static control for displaying Image.

myStatic[i]->SetBitmap(hbmp);

I am placing this code in one function called "DisplayImages".
I am calling this function for every Scroll.For every scroll I am displaying 8 Images as I told before.

I am not clearing all Images.I am creating new 8 Static controls at same
place on Dialog and I am using satic controls for Displaying new images.

Re: flickering while displaying Images on dialog box

Alan Balkany13-Mar-09 4:03

Alan Balkany

13-Mar-09 4:03

One solution is double buffering. In your OnPaint () handler make a bitmap as big as your dialog and draw the images on that bitmap. Then draw that bitmap in one operation on the dialog using the CDC member.

Re: flickering while displaying Images on dialog box

Stuart Dootson13-Mar-09 6:12

Stuart Dootson

13-Mar-09 6:12

To expand on previous answers - how about this[^]?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

a question of winpcap

tyr200013-Mar-09 3:13

tyr2000

13-Mar-09 3:13

I am a newer of winpcap. I want to know if there is any difference between a switch network and hub network to capture packet by using winpcap. As I know it seems different between the two kind of network by useing row socket. In the switch network to capture all the packets of the whole computers ,arp cheating is need(as i know).but the hub network needn't. Is it the same by using winpcap?
Thanks in advance.

sockets in MFC

hrishiS13-Mar-09 2:51

hrishiS

13-Mar-09 2:51

Hi to everyone,.

I am facing a problem in socket of MFC.
I have a client and a server. Server always in listen state.
When the client closes....the server keeps getting messages.

thanks in advance

I am a beginner

Re: sockets in MFC

CPallini13-Mar-09 3:06

CPallini

13-Mar-09 3:06

himangshuS wrote:
I have a client and a server. Server always in listen state.
When the client closes....the server keeps getting messages.

Possibly it is the ghost of the client that keeps sending messages... Suspicious | :suss:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: sockets in MFC

Michael Schubert13-Mar-09 3:18

Michael Schubert

13-Mar-09 3:18

CPallini wrote:
Possibly it is the ghost of the client that keeps sending messages...

That's a reasonable assumption. I have also read about servers being able to receive messages from beyond the grave. It does require specific hardware though...

Re: sockets in MFC

CPallini13-Mar-09 3:34

CPallini

13-Mar-09 3:34

Michael Schubert wrote:
It does require specific hardware though...

Indeed, it works using Li-Fy (Lifeless Fidelity) protocol... Roll eyes | :rolleyes:

Re: sockets in MFC

Michael Schubert13-Mar-09 3:42

Michael Schubert

13-Mar-09 3:42

Hm, haven't heard of that. I thought one would need a add-on card with Voodoo chipset and ISM (Instant Séance Module) firmware...

Re: sockets in MFC

CPallini13-Mar-09 3:49

CPallini

13-Mar-09 3:49

Of course, now, THHB's 'most active' marks need to be updated...Done [^].
Smile | :)

Re: sockets in MFC

Michael Schubert13-Mar-09 3:54

Michael Schubert

13-Mar-09 3:54

Thanks

How to load image

harishkharvi13-Mar-09 2:48

harishkharvi

13-Mar-09 2:48

I stored image path in SQL Server table (Eg: "c:/vimages/image.bmp") .
i want to retrieve that image filed and i want to load that in my form.
i want to know the code to Load image on my Form.

Re: How to load image

David Crow13-Mar-09 3:00

David Crow

13-Mar-09 3:00

So which part are you having trouble with: 1) retrieving data from SQL, or 2) loading an image from disk?

Re: How to load image

Stuart Dootson13-Mar-09 6:14

Stuart Dootson

13-Mar-09 6:14

CImage[^] (if you're using VS2003 or later) or CxImage[^] will load image files for you.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

string concatenation

harishkharvi13-Mar-09 2:45

harishkharvi

13-Mar-09 2:45

i want to know how to concatenate two string (Eg: str1 & str2)

Re: string concatenation

NeoAks00713-Mar-09 2:56

NeoAks007

13-Mar-09 2:56

Hi Harish,
You could use strcat function provided in string.h to concatenate 2 strings. e.g strcat(str1,str2) concatenates str2 with str1.

Re: string concatenation

Cedric Moonen13-Mar-09 2:56

Cedric Moonen

13-Mar-09 2:56

Which kind of string ? C style strings ? Then use strcat. std::string ? Then use the + operator.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: string concatenation

Stuart Dootson13-Mar-09 6:18

Stuart Dootson

13-Mar-09 6:18

Use std::string or CString and then you can do it like this:

std::string a = "Hello ";
std::string b = "World";

std::string c = a + b;

CString a = "Hello ";
CString b = "World";

CString c = a + b;

Otherwise, if you just use C strings, you have to do stuff like this:

char a[10];
char b[10];
char c[20];
strcpy(a, "Hello ");
strcpy(b, "World");
strcpy(c, b);
strcat(c, a);

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

date function

harishkharvi13-Mar-09 2:39

harishkharvi

13-Mar-09 2:39

i need sample code for two "date comparison" (Eg: date1>date2 )
date function's such as "two date addition" and "two dates subtraction"
in visual C# studio 2005.

Re: date function

NeoAks00713-Mar-09 2:41

NeoAks007

13-Mar-09 2:41

I think you must post your problem in C# section. This board is for C++ related queries...

Track number of compiles done on a solution

NeoAks00713-Mar-09 2:38

NeoAks007

13-Mar-09 2:38

Hi All,
Is there any automated way in Visual C++ 2008 to count the number of times the solution gets compiled??

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.