Re: How i can prevent right click in windows explorer - C / C++ / MFC Discussion Boards

itbuff27-Sep-06 3:57

27-Sep-06 3:57

Client is started as an service which doesn't have an UI or a frontend. Its like a service application. Client exe can be installed on many machines.

When the server exe is started it wil give u the list of clients connected to that server.
Right click on the client IP/Name and start capturing sound.

The conversation between server-client is recorded and the wave file is generated physically on the hard disk.

When the wave file is played, you cannot the hear the sound clearly . It is stretched and delayed.

Whereas On the server side in sound.c file

LRESULT CALLBACK WinProc(HWND hWndSub, UINT message, WPARAM wParam, LPARAM lParam)
{
case(MM_WOM_DONE):
{
//iBufferCount--;

return 0;
}
}

If u uncomment //iBufferCount--; only server side recordig is absolutely fine.

If the above line is uncommented then you cannot hear the conversation from the client side and the recording is not smooth.

Problem using CList ?

GudduRanchi27-Sep-06 3:34

GudduRanchi

27-Sep-06 3:34

I have created a structure as
typedef struct __test{
char buf[10];
}TEST,*PTEST;

then i created a CList object as

CList<PTEST ,PTEST>my_firststruct;

then i am using to store linklist
if( my_firststruct.IsEmpty())
my_firststruct.Addhead(pTest);
else
my_firststruct.AddTail(pTest);

It is working fine. But problem start when i am using as
typedef struct __Second{
char buf[10];
}SECOND,*PSECOND;

typedef struct __test{
CList<PSECOND,PSECOND>my_secondstruct;
char buf[10];
}TEST,*PTEST;

if(pTest->my_secondstruct.IsEmpty())

when i am trying to call this is giving me error error code is
C0000005: This error is with memory. So how i will resolve this error.

Can any one help me on this...?

How i can prevent right click in windows explorer

sudarshan12427-Sep-06 2:51

sudarshan124

27-Sep-06 2:51

how i can prevent right click in windows explorer by using shell extensions.

sudarshan

Re: How i can prevent right click in windows explorer

C^hris L^osinger27-Sep-06 4:25

C^hris L^osinger

27-Sep-06 4:25

why would you want to ?

any application that did that to me would get uninstalled immediately.

image processing | blogging

Re: How i can prevent right click in windows explorer

George L. Jackson27-Sep-06 5:27

George L. Jackson

27-Sep-06 5:27

However, sometimes it is required by the customer. Here is some code:

<br />
document.onmousedown = disableclick<br />
<br />
function disableclick(e)<br />
{<br />
	if( event.button == 2 )<br />
		alert("Sorry Right-Click has been disabled!");<br />
	<br />
	return false;<br />
}<br />

Re: How i can prevent right click in windows explorer

C^hris L^osinger27-Sep-06 5:45

C^hris L^osinger

27-Sep-06 5:45

the OP said "windows explorer" not "internet explorer".

image processing | blogging

Re: How i can prevent right click in windows explorer

George L. Jackson27-Sep-06 12:48

George L. Jackson

27-Sep-06 12:48

Sorry, I need to go to bed earlier or get my eyes examined.

Re: How i can prevent right click in windows explorer

Jörgen Sigvardsson27-Sep-06 13:48

Jörgen Sigvardsson

27-Sep-06 13:48

I suppose you could wipe the registry clean of relevant entries. What that will do to your system in general, is probably not what you want. You could always ask Microsoft for a copy of the source code... Wink | ;)

--
Broadcast simultaneously one year in the future

bloat reduction

Waldermort27-Sep-06 2:17

Waldermort

27-Sep-06 2:17

Probably a stupid question but this has been bugging me. When a library is added to a project (either .lib or src), there are usuallu many functions contained in the library that are never used. Are these added to the final build?

Is there any way to get VC6 to list all unused functions/code?

Re: bloat reduction

Rajesh R Subramanian27-Sep-06 2:30

Rajesh R Subramanian

27-Sep-06 2:30

If you link to a library and if you are using atleast one function that is exported from that library, then of course it goes for the final build. On the other hand, if you are building for "Release" and you have included a library which is absolutely not referred at all, linker warning 4089 will be displayed. And you can choose what to do.

http://vcfaq.mvps.org/ide/7.htm

If your ship doesn't come in, swim out to it. - Jonathan Winters

Re: bloat reduction

Waldermort27-Sep-06 2:42

Waldermort

27-Sep-06 2:42

I'm not talking about linking against a library in that manner, but rather about the functions included within the library.

Obviously in the case of a dll, the functions will always be there, but what about static libraries. Are all of the functions within the .lib also included within the .exe, I guess so.

What about a library in src form (.h and .cpp), are all those unused functions added to the exe or can they be optimized in some manner?

Re: bloat reduction

Zac Howland27-Sep-06 3:56

Zac Howland

27-Sep-06 3:56

waldermort wrote:
Are all of the functions within the .lib also included within the .exe

No. All functions are compiled, but unreferenced ones are not linked.

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Re: bloat reduction

Maximilien27-Sep-06 2:41

Maximilien

27-Sep-06 2:41

unused functions are removed from the final link.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: bloat reduction

Waldermort27-Sep-06 2:44

Waldermort

27-Sep-06 2:44

Could you be a little more clear please Cool | :cool:

function from a .lib, src or both?

Re: bloat reduction

Mike Dimmick27-Sep-06 4:04

Mike Dimmick

27-Sep-06 4:04

The linker includes everything in a section (called a COMDAT) where any member of that section is referenced, if the /OPT:REF switch is specified (which is the default if /DEBUG is not specified). By default the compiler simply generates one COMDAT per source file, but by specifying the /Gy switch, it will instead generate one COMDAT per function. The combination of /Gy and /OPT:REF can be used to eliminate some dead code.

A library is simply a collection of .obj files; the behaviour will depend on whether /Gy was used to build the .obj files in the library. Import libraries are always reduced to the minimum set referenced.

Note that there are techniques which will prevent /OPT:REF from being able to eliminate otherwise unreferenced functions. If you reference a function in a table of function pointers, for example, and the table itself is referenced, all the functions will be included even if those entries in the table are unused. This can apply to MFC message maps and C++ virtual function tables.

Link.exe can tell you what it did include. Generate a map file (with /MAP). This tells you the address at which every function was generated.

It can be confusing for a new developer to find bits of dead code - I've wasted plenty of time trying to work out how to fix code that wasn't actually being called. Since adopting source control, I now delete code that I discover to be dead and which couldn't fulfil any useful purpose if a class was reused. Sometimes you find routines implemented 'for completeness' that actually aren't used in the project which the class was created for. These should be a red flag because it usually means they weren't tested as thoroughly as the rest of the class.

Stability. What an interesting concept. -- Chris Maunder

Re: bloat reduction

Waldermort27-Sep-06 4:50

Waldermort

27-Sep-06 4:50

Thankyou for that excellent explanation.

Close an instance

ayol1212227-Sep-06 1:34

ayol12122

27-Sep-06 1:34

Hi all...
I'm trying to code a tool to navigate some web pages.
I start an instance of IE by this code:

CoInitialize(NULL);
HRESULT hr;
IWebBrowser2* pWebBrowser = NULL;
hr = CoCreateInstance (CLSID_InternetExplorer, NULL, CLSCTX_SERVER, IID_IWebBrowser2, (LPVOID*)&pWebBrowser);

And I destroy it with this:

pWebBrowser->Release();
pWebBrowser = NULL;
CoUninitialize ();

Well...this is Ok...but IE window is not closed after Release and CoUninitialize. And so even if I close my program, IE window is still there open! And its process is not killed. How can i close also IE window???

Thanx Smile | :)

Re: Close an instance

Stephen Hewitt27-Sep-06 1:56

Stephen Hewitt

27-Sep-06 1:56

Just a guess, but you could try the IWebBrowser2::Quit method.

Steve

Re: Close an instance

prasad_som27-Sep-06 1:58

prasad_som

27-Sep-06 1:58

ayol12122 wrote:

And I destroy it with this:
pWebBrowser->Release();pWebBrowser = NULL;CoUninitialize ();

This is not destroying web browser. There are other methods.
you can use ,

long hWnd;
pWebBrowser->get_HWND(&hWnd);
SendMessage(hWnd,WM_CLOSE,0,0);

pWebBrowser->Quit();

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Close an instance

ayol1212227-Sep-06 3:31

ayol12122

27-Sep-06 3:31

really really thanx!!
i used quit and everything is ok.
Thanx to both you answered to my question Wink | ;)

error LNK2001

Rems Kris27-Sep-06 1:24

Rems Kris

27-Sep-06 1:24

Hi,

I've created an ActiveX control. The Control class (***Ctl) in it should be derived from a class in another dll (which is also created by me). I want to load the ActiveX control dynamically in a container exe and check if the Ctl class is derived from the base class in the dll (This container is also created by me).

The base class in the dll is called TusMacroOcxBase and it is derived from COleControl.
The Ctl class in the ActiveX control which is derived from TusMacroOcxBase is called CTusSampleOcxCtrl.

I decided to make use of CRuntime class's methods to check the class type information (Since COleControl is already derived from CObject). So I proceeded by using the DECLARE_DYNAMIC/DECLARE_DYNCREATE and IMPLEMENT_DYNAMIC/IMPLEMENT_DYNCREATE macros. I also enabled RTTI in the container exe.

My problem is that when I write IMPLEMENT_DYNCREATE(CTusSampleOcxCtrl, TusMacroOcxBase) in CTusSampleOcxCtrl class's .cpp file, it gives error LNK2001.
The error message is given below.
TusSampleOcxCtl.obj : error LNK2001: unresolved external symbol "public: static struct CRuntimeClass const TusMacroOcxBase::classTusMacroOcxBase" (?classTusMacroOcxBase@TusMacroOcxBase@@2UCRuntimeClass@@B)

Here is the code snippet:

Base class - .h

class _declspec(dllexport) TusMacroOcxBase : public COleControl
{

public:

DECLARE_DYNAMIC(TusMacroOcxBase)
....

Base class - .cpp

IMPLEMENT_DYNAMIC( TusMacroOcxBase, COleControl )

Derived class - .h

class CTusSampleOcxCtrl : public TusMacroOcxBase
{
DECLARE_DYNCREATE(CTusSampleOcxCtrl)
....

Derived class - .cpp

IMPLEMENT_DYNCREATE(CTusSampleOcxCtrl, TusMacroOcxBase)

I can solve the error easily by replacing IMPLEMENT_DYNCREATE(CTusSampleOcxCtrl, TusMacroOcxBase) with IMPLEMENT_DYNCREATE(CTusSampleOcxCtrl, COleControl), but I cant do that since I need to get the exact base class of CTusSampleOcxCtrl in the container exe. If I give COleControl there, I will get the base class as COleControl only.
Is there any other way? I've tried different combinations of DECLARE_DYNAMIC/DECLARE_DYNCREATE and IMPLEMENT_DYNAMIC/IMPLEMENT_DYNCREATE also.

Any help will be greatly appreciated.

Thanks in advance,
Rems.

Re: error LNK2001

Rinu_Raj27-Sep-06 1:39

Rinu_Raj

27-Sep-06 1:39