C / C++ / MFC

24-Mar-09 2:57

optical123 wrote:
but I tried using that function but it is not retrving the ip address...

What does your code look like:

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

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Device Driver

brucewayn23-Mar-09 22:08

brucewayn

23-Mar-09 22:08

Hi everyone
Can you give give me a good tutorial about device driver programming,maybe codeproject has articles about make it or using google we can find a lot info about it but I want to start of first,what is device driver and then start to writing code in MFC?
Thanks

CPallini23-Mar-09 22:36

CPallini

23-Mar-09 22:36

Writing a driver using MFC is like using psychology to get some insight of quantum mechanics. Roll eyes | :rolleyes:

Maxwell Chen23-Mar-09 23:00

Maxwell Chen

23-Mar-09 23:00

Steps:
1: Get a copy of Windows Driver Kit V6001.
2: Install Windows Driver Kit.
3: You get lots of sample code in the hard disk.
Big Grin | :-D

BTW, there is no MFC in device driver code.

Maxwell Chen

brucewayn24-Mar-09 1:08

brucewayn

24-Mar-09 1:08

Thanks for the info. Can u suggest any tutorials which gives the basic idea of Device Driver Programing...

Thanks

«_Superman_»23-Mar-09 23:36

«_Superman_»

23-Mar-09 23:36

Look at the Device Driver articles by Toby Opferman[^]

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

David Crow24-Mar-09 3:04

24-Mar-09 3:04

brucewayn wrote:
Can you give give me a good tutorial about device driver programming...

This is about as good as it gets.

UrlDownloadtofile

p_196023-Mar-09 21:45

p_1960

23-Mar-09 21:45

HI ,
im using UrlDownloadtofile() to download some files ...but the issue is if the file is present im able to download file(With return value S_OK) ...but if the server is not accessible ie (some issue with IIS or any other..) or if the file is not present im not getting the exact return value from UrlDownloadtofile to specify to user whether it is server issue or File not present...in MSDN it was given that if the return value is INET_E_DOWNLOAD_FAILURE then file is not present in the server but...im getting some junk value like -2146697210...when the file is not present in the server or server is not accessible....

So please let me know how can i notify user what is the exact problem....

Sarath C23-Mar-09 22:20

Sarath C

23-Mar-09 22:20

As per the documentation, this function will return, either of the following values,
S_OK - 0
E_OUTOFMEMORY - 0x80000002
INET_E_DOWNLOAD_FAILURE - 0x800C0008

and from the error code you've given the value is negative which means that you're taking this values to a signed variable like int.

The actual return type is HRESULT and the values are defined with unsigned hexadecimal. Please compare it with INET_E_DOWNLOAD_FAILURE, S_OK or E_OUTOFMEMORY to know whether it has succeeded or not.

The error code you've given is close to INET_E_DOWNLOAD_FAILURE value. Please compare against it.

-Sarath.
"Great hopes make everything great possible" - Benjamin Franklin

My blog - Sharing My Thoughts

p_196023-Mar-09 22:45

p_1960

23-Mar-09 22:45

Thanks for ur reply .......i have changed view to Hexadecimal display...and now im getting return value as 0x800C0006...May i know what this return value indicates.....

David Crow24-Mar-09 3:07

24-Mar-09 3:07

p_1960 wrote:
May i know what this return value indicates.....

Have you tried errlook.exe?

p_196024-Mar-09 18:09

p_1960

24-Mar-09 18:09

May i know from where can i get that exe...?Is it a third party exe..

David Crow25-Mar-09 2:44

How to Check Dektop Window is the current Active Window?.

25-Mar-09 2:44

p_1960 wrote:
May i know from where can i get that exe...?

It comes with Visual Studio.

Nitheesh George23-Mar-09 20:59

Nitheesh George

23-Mar-09 20:59

Hi,

I am doing application in which i want to know whether the Desktop window is the current active window or Not. How can i do this. Is GetForeGroundWindow() is a solution?.

thanks

Nitheesh.

Jose Jo Martin

http://www.simpletools.co.in

Re: How to Check Dektop Window is the current Active Window?.

David Crow24-Mar-09 3:14

Re: How to Check Dektop Window is the current Active Window?.

24-Mar-09 3:14

Have you tried:

if (GetActiveWindow() == GetDesktopWindow())
    ...

Nitheesh George24-Mar-09 4:06

Nitheesh George

24-Mar-09 4:06

Hi David,

Thanks for your reply. I tried using the GetForeGroundWindow but that didn't work.

thanks

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in

Re: How to Check Dektop Window is the current Active Window?.

David Crow24-Mar-09 5:58

Re: How to Check Dektop Window is the current Active Window?.

24-Mar-09 5:58

Assuming you meant GetForegroundWindow(), I don't recall suggesting it.

Anyway, what does it return? Have you compared that window handle with those in Spy++?

Nitheesh George25-Mar-09 5:03

Nitheesh George

25-Mar-09 5:03

Hi David,

I tried by using GetActiveWindow() but MSDN says

"The GetActiveWindow function retrieves the window handle to the active window attached to the calling thread's message queue." . So i am getting NULL when my application's window is not the current window.

Do u have any suggestion?.

thanks.

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in

PropertySheet Not move.

Le@rner23-Mar-09 20:34

Le@rner

23-Mar-09 20:34

Hi all,

i m creating a propertysheet by using a class drived from property sheet.

its works fine but its not move.

please tell me wat can i do.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: PropertySheet Not move.

David Crow24-Mar-09 3:15