Filtering Techniques in Kernel level - C / C++ / MFC Discussion Boards

Re: How can i close messagebox without clicking a button?

David Crow28-May-09 4:17

David Crow

28-May-09 4:17

"_$h@nky_" wrote:
can u please tell me how can i do this.

Here is one example.

"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: How can i close messagebox without clicking a button? [modified]

walker_network_ranger8-Jan-13 21:04

walker_network_ranger

8-Jan-13 21:04

open the messagebox on a separate thread and kill that thread when you need to close it

Marius
~~~~~~~~~~~~~~
.NET developer

Convert from "String ^" to std::String

tecnico.antonio28-May-09 0:44

tecnico.antonio

28-May-09 0:44

Hello

I am trying to convert from "String ^" to std::String on VC++ 2005. I use this piece of code:

std::string s;
String ^ ss = "hello";
s = ss;

I have got the following error:
error C2679: binary '=' : no operator found which takes a right-hand operand of type 'System::String ^' (or there is no acceptable conversion)

Any idea?

Thanks

Re: Convert from "String ^" to std::String

Rajesh R Subramanian28-May-09 1:05

Rajesh R Subramanian

28-May-09 1:05

You must have posted your query at the managed c++ forum. This board is for queries on native language programming (the actual stuff). Besides that, Why would you be converting a String to std::string?!

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Convert from "String ^" to std::String

AntoniP28-May-09 1:16

AntoniP

28-May-09 1:16

ops, sorry for the mistake. The reason I need the converion is because I am merging code from different VC projects and versions. Some code use std::string variables and the other system::String ^

Thanks. I will post it in the correct place

Re: Convert from "String ^" to std::String

Stuart Dootson28-May-09 1:33

Stuart Dootson

28-May-09 1:33

If only it were that simple...

Here's my attempt at code that gets the raw wide characters from a CLR String into a std::wstring - I'll leave the conversion to ASCII to you - there are plenty of examples of how to do that part of it...

String^ ss = "hello";

std::wstring s;

array<wchar_t>^ chars = ss->ToCharArray();
pin_ptr<wchar_t> charPtr = &chars[0];
s = std::wstring(charPtr, charPtr+ss->Length);

Microsoft's suggested solution is here[^].

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

Re: Convert from "String ^" to std::String

AntoniP28-May-09 1:43

AntoniP

28-May-09 1:43

Thanks a lot!!

Filtering Techniques in Kernel level

Jacobb Michael28-May-09 0:37

Jacobb Michael

28-May-09 0:37

Hi all!

i have injected the kernel32.dll for the "CreateFileW" and i have customized the funcation.

i wana log only the files created by the user not by the system exe and dll and processes.

i have filtered by using "dwCreationDisposition" and dwFlagsAndAttributes

even though i cant filter some of the files created temperarily and some exe files.

has anybody known any filtering techniques in the kernel.

i welcome if someone leads me for a good technique

Thanks all!

Regards
Jack

error LNK2001: unresolved external symbol "public: static bool

ptr_Electron27-May-09 23:50

ptr_Electron

27-May-09 23:50

I added a static variable in a file "shared.h"

static bool bDone;

and inclued in "shared.h" in two file "abc.cpp" and "xyz.cpp"
because I want to set the value in "abc.cpp" and use it in "xyz.cpp".
But when I do this I get the below linker error

error LNK2001: unresolved external symbol "public: static bool bDone, before addition of this variable every thing compiles fine

Please advice

Re: error LNK2001: unresolved external symbol "public: static bool

Rajesh R Subramanian27-May-09 23:52

Rajesh R Subramanian

27-May-09 23:52

By declaring it static, you've restricted the scope of that variable to the file where it is declared. You might want to look into the keyword extern (declare the variable globally without the static keyword and declare it as extern where you are trying to use it)

It is a crappy thing, but it's life -^ Carlo Pallini

Re: error LNK2001: unresolved external symbol "public: static bool

ptr_Electron28-May-09 0:06

ptr_Electron

28-May-09 0:06

so in my case I should do as below

Shared.h
bool bDone;

abc.h
#include "Shared.h"
extern bDone;

xyz.h
#include "Shared.h"

extern bDone;

If I am not worng

Re: error LNK2001: unresolved external symbol "public: static bool

Rajesh R Subramanian28-May-09 0:11

Rajesh R Subramanian

28-May-09 0:11

Are you going to wait until I say "yes, go ahead"? Roll eyes | :rolleyes:

Why not try it in the IDE and ask queries if it didn't work?

It is a crappy thing, but it's life -^ Carlo Pallini

Re: error LNK2001: unresolved external symbol "public: static bool

ptr_Electron28-May-09 1:04

ptr_Electron

28-May-09 1:04

Now I get the below error

error LNK2005: "bool m_Cursor" (?m
.exe : fatal error LNK1169: one or more multiply defined symbols found

Re: error LNK2001: unresolved external symbol "public: static bool

Rajesh R Subramanian28-May-09 1:12

Rajesh R Subramanian

28-May-09 1:12

//MyHeader.h
<a href="http://msdn.microsoft.com/en-us/library/dabb5z75(VS.80).aspx" target="_blank" title="New Window">__declspec</a>(<a href="http://msdn.microsoft.com/en-us/library/5tkz6s71(VS.80).aspx" target="_blank" title="New Window">selectany</a>) bool bVar;

//SomeFile.cpp
#include "MyHeader.h"
extern bool bVar = 0;

//AnotherFile.cpp
#include "MyHeader.h"
extern bool bVar = 1;