Re: Determine text file or Binary file - C / C++ / MFC Discussion Boards

Re: Service description???

rdhamija17-Jan-05 23:24

rdhamija

17-Jan-05 23:24

thanks!

How to create a new web browser object from an existing object sharing instance ?

Yariv17-Jan-05 21:00

Yariv

17-Jan-05 21:00

Hi,

How do I create a new window from an existing object that shares the original object instance ? I'll explain with an example.

Lets say you used IE to browse to a secure url that requires authorization.
After authorization, creating new window by using menu File->New Window gives you a new window that shares the authorization status. You don't have to login again in the new window.

How do I do it assuming I have CHtmlView ?
Thanks

Regular Expressions

Amit Mulay17-Jan-05 20:33

Amit Mulay

17-Jan-05 20:33

Hi,
Can Anyone please suggest a Regular Expression which can validate an expression like "< 200",
"<= 200",
"> 200" or
">= 200"

Thanks a lot.
Amit

Re: Regular Expressions

User 665817-Jan-05 21:00

User 6658

17-Jan-05 21:00

(>|>=|<|<=)\s?([0-9])+

\1 is the evaluation, \2 the number

Smile | :)

regards

modified 12-Sep-18 21:01pm.

Determine text file or Binary file

mjvalan17-Jan-05 20:25

mjvalan

17-Jan-05 20:25

I want to determine, a file is text file or binary file(file name dosen't have file extension).Is there any API in Windows SDK?

Thanks
MJVALAN

Re: Determine text file or Binary file

basementman18-Jan-05 4:18

basementman

18-Jan-05 4:18

You can open the file, read the contents, and examine the bytes to determine if the file contains any binary data. You can see if the characters are in the normal text range, as well as checking for CR/LF characters.

onwards and upwards...

Re: Determine text file or Binary file

David Crow18-Jan-05 4:21

David Crow

18-Jan-05 4:21

A file is only "text" or "binary" in the context of the application that created it. Historically speaking, if the file contained non-printable characters, it was considered binary. Otherwise, it was considered text.

What exactly is it that you are trying to do?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Re: Determine text file or Binary file

digwizfox18-Jan-05 8:22

digwizfox

18-Jan-05 8:22

I don't think so. This wouldn't make any sense to me. After all, a binary file appears as garbage in a text editor because the bytes will not map to ascii to form any kind of intelligible sentence in any language. The text editor doesn't care if the file you tell it to open is binary or not. It will just read the file and try to map the bytes into ascii and display whatever random characters the data happens to map to. If there were an automatic function for doing this, the people that wrote notepad and wordpad probably would have popped up an warning message reading, "warning, processing binary file"; or something like that.

All files are binary files, in my mind. It just so happens that a text file is a special kind of binary file where each byte maps to an appropriate ascii symbol to form intelligible letters/numbers/symbols. Even the carriage returns and line feeds are simply bytes of data that map to the appropriate ascii symbol. I think writing an algorithm to guess if something is good enough to be a text file would be awfully difficult if not impossible. You'd have to read each byte in and make a lot of assumptions about the data.

Cannot open include file: 'Iphlpapi.h': No such file or directory

vc-programmer-17-Jan-05 20:25

vc-programmer-

17-Jan-05 20:25

i have IPHelper demo.so,i'm running this demo,but to no avail.
following error is appear.
how can i run this demo.

stdafx.h(24) : fatal error C1083: Cannot open include file: 'Iphlpapi.h': No such file or directory

#include <iphlpapi.h>
#pragma comment(lib, "Iphlpapi.lib")

Iphelper ->http://www.codeproject.com/internet/IPHelper.asp

Re: Cannot open include file: 'Iphlpapi.h': No such file or directory

Aamir Butt17-Jan-05 23:12

Aamir Butt

17-Jan-05 23:12

Have u tried to ask this question in this article's own forum....

Found on Bash.org

I'm going to become rich and famous after i invent a device that allows you to stab people in the face over the internet
My Articles

Re: Cannot open include file: 'Iphlpapi.h': No such file or directory

Antony M Kancidrowski18-Jan-05 2:18

Antony M Kancidrowski

18-Jan-05 2:18

Search for Iphlpapi.h on your machine. Mine is in the \program Files\Microsoft SDK\include directory (your could be else where).

If it doesn't exist install Microsofts Platform SDK.

Then add the path for the file to the include paths for the project in question..

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

Re: Cannot open include file: 'Iphlpapi.h': No such file or directory

Selvam R18-Jan-05 2:57

Selvam R

18-Jan-05 2:57

Hi,

you check Iphlpapi.lib also. If your path no lib file, you copy and paste the currect path.

Regards
Selvam

Streaming Media Player

dkmorris199917-Jan-05 19:03

dkmorris1999

17-Jan-05 19:03

Can anyone point me in a direction where I can find some samples on how to building a audio player that requests and plays audio content from Windows Media Server?

Thanks,

Dan

Re: Streaming Media Player

Jetli Jerry18-Jan-05 0:32

Jetli Jerry

18-Jan-05 0:32

hi dan,

Windows media sdk from microsoft

nice example By mystro_AKA_kokie
http://www.codeproject.com/internet/videochat/wmvidchat.zip[^]

HTH

Jetli
conclusion means Coming to wrong Decision with confidence

How to create C++ DLL in Visual Studio.Net 2003

webdevelopex17-Jan-05 19:02

webdevelopex

17-Jan-05 19:02

Can anybody provides a link to that example? i need a step by step example to create a simplest "hello world" C++ DLL by using Visual Studio.Net 2003

Thanks for viewing

regards;
webdevelopex

Re: How to create C++ DLL in Visual Studio.Net 2003

Selvam R17-Jan-05 23:46

Selvam R

17-Jan-05 23:46

Hi,

http://www.codeproject.com/managedcpp/mcppdynamdll.asp[^]

Regards,
Selvam

network device enumeration

vc-programmer-17-Jan-05 17:16

vc-programmer-

17-Jan-05 17:16

>>>>>how to know network device enumeration<<<<<

i have already get PC Ip address.
but i have not other network device information.

can i know other network information.
now, i have Iphelper demo.

this exe display all ip address (pc & other device).

can only display device(eg.network bar code).

i want to know how many device are contain in my entire network.(not computer)

Re: network device enumeration

David Crow18-Jan-05 4:27

David Crow

18-Jan-05 4:27

There is NetServerEnum(), and the WNetOpenEnum()/WNetEnumResource() pair. Do either of these help?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

receiving power management events in a service

dilipjoseph17-Jan-05 16:50

dilipjoseph

17-Jan-05 16:50

Hi,

Please tell me how a windows service can recieve events (especially power management ones). There was a function RegisterSysMsgHandler() as part of OneNow initiative which was supposed to allow a service to listen for window events.. But I can't find the documentation for that function anywhere on the web. Is there a new function by some other name which achieves the same thing?

Thank you,

Dilip

Re: receiving power management events in a service

cmk17-Jan-05 19:29

cmk

17-Jan-05 19:29

In the structure SERVICE_STATUS.dwControlsAccepted set SERVICE_ACCEPT_POWEREVENT.

In the beginning of your service main routine use ::SetServiceStatus() to specify the controls accepted (i.e. handled) by your service (i.e. handler routine).

In your service handler routine add a case to handle SERVICE_CONTROL_POWEREVENT.

Will only work for Win2K and up (i think).

...cmk

Save the whales - collect the whole set

Static text...

dSolariuM17-Jan-05 16:04

dSolariuM

17-Jan-05 16:04

Hello,
I have a static text over an activex object but after debugging or
releasing the app the gray rectangle around the static text is still
there...
Please help me on this.
Thanks.

RegEnumValue example

jonavon blakly17-Jan-05 15:32

jonavon blakly

17-Jan-05 15:32

I need an example of RegEnumValue.

Re: RegEnumValue example

ThatsAlok17-Jan-05 18:04

ThatsAlok

17-Jan-05 18:04

First Take a look at RegEnumKey
RegEnumKey look Like this

LONG <code>RegEnumValue</code>(
  HKEY hKey,           <font color="green">  // handle to key to query </font>
  DWORD dwIndex,     <font color="green">    // index of value to query </font>
  LPTSTR lpValueName, <font color="green">   // value buffer </font>
  LPDWORD lpcValueName, <font color="green"> // size of value buffer </font>
  LPDWORD lpReserved,  <font color="green">  // reserved </font>
  LPDWORD lpType,      <font color="green">  // type buffer </font>
  LPBYTE lpData,      <font color="green">   // data buffer </font>
  LPDWORD lpcbData    <font color="green">   // size of data buffer </font>
);

Now Some Code Snippet

char szNameOfKey[200];<font color="green">//Buffer  </font>
DWORD dwBufferSize=200;<font color="green">//Buffer Size </font>
DWORD dwIndex=0;
CStringArray arrOfKeys;

Now Enumerate the HKEY_CURRENT_USER using RegEnumKey

 while(RegEnumKey(<code>HKEY_CURRENT_USER</code>, //
                  dwIndex++, <font color="green">//Index of Key to be Retrive </font>
                  szNameOfKey,<font color="green">//Buffer of Key </font>
                  dwBufferSize,<font color="green">//Buffer Size </font>
                  NULL,<font color="green">//as documented in MSDN </font>
                  NULL,<font color="green">//We don't need this right </font>
                  NULL,<font color="green">//So no need of it </font>
                  NULL)!= ERROR_NO_MORE_ITEMS)
 {
 <font color="green">//add New Found Key to array </font>
  arrOfKeys.Add(<code>szNameOfKey</code>);
 <font color="green">//Restucture the size of Buffer as it modified during  </font>
 <font color="green">//Enumeration </font>
  dwBufferSize=200;
 }

<font color="green">//Now <code>arrOfKeys</code> Hold all the Enumerated Key </font>

"I Think this Will Help"
<h5
alok gupta="" <br=""> visit me at http://www.thisisalok.tk

Re: RegEnumValue example

jonavon blakly18-Jan-05 15:06

jonavon blakly

18-Jan-05 15:06

Thank you very very much!

Create thumbnail of first page of PDF

Defenestration17-Jan-05 14:51

Defenestration

17-Jan-05 14:51

Does anyone know how to create a thumbnail image (BMP) of the first page of a PDF document ?

I'm planning on using it in a thumbnail viewer so it needs to be fast.

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