zero termination for BYTE? - C / C++ / MFC Discussion Boards

Maximilien1-Sep-09 3:35

1-Sep-09 3:35

I don't think you can directly do this.

You could wrap the variables in getters/setters with a extra parameter to mark the variable "const".

This signature was proudly tested on animals.

Re: run-time const

Stephen Hewitt2-Sep-09 0:17

Stephen Hewitt

2-Sep-09 0:17

In general, a variable that's const will be placed in a read-only section of the PE[^] file and so will be read-only at run-time. This begs the following question: what's the question you're asking? By "run-time const" do you mean that you want a variable that you can toggle between read-only and writeable at run-time or just a variable that can't be altered (in both cases the read-only-ness is obviously enforced by the OS and not just the langauage)? Perhaps something else?

Steve

Windows notification packages

ibnipun101-Sep-09 0:00

ibnipun10

1-Sep-09 0:00

Hi All,

I want to provide username and password in the winlogon dialog box using my service without using my custom GINA.dll . I am using Windows notification packages. Is it possible to do so?
Whenver my service locks the computer my service will unlock it automatically after some time inverval. Is there a way to interact with the Winlogon.exe(msgina.dll) for this pass through authentication.

Recentrly I installed Logmein and it has this kind of feature implemented. You remote control a PC using logmein and if a computer is locked or logged off it automatically logs in or unlocks the computer without reentering the username and password

How to get the Phoneme/Viseme information in audio file for lipsync?

yaoyansi31-Aug-09 23:27

yaoyansi

31-Aug-09 23:27

hi,all
I want to do the lipsync for my cg animation. I think I have to get the time of Phoneme/Viseme
in the audio file. My questions are:

1.How to get the time of Phoneme/Viseme in audio file (e.g.wav/ogg/...)?

2.Can i get the Phoneme/Viseme in Ogg(or other format) file if any?

3.I know Microsoft Agent 2.0 Tool:Linguistic Information Sound Editing Tool can generate *.lwv file
from *.wav, and *.lwv contains the information of Phoneme/Viseme.
But, it seems that the fomat of lwv file is not open. So, Is there any way to get
the time of Phoneme/Viseme in lwv file?

4.Or, Is there any free software available which can generate the Phoneme/Viseme information
from audio file?

Sorry for my english. And Thank you in advance.

Re: How to get the Phoneme/Viseme information in audio file for lipsync?

Adam Roderick J1-Sep-09 0:16

Adam Roderick J

1-Sep-09 0:16

Wrong forum Frown | :(

Величие не Бога может быть недооценена.

Re: How to get the Phoneme/Viseme information in audio file for lipsync?

Rick York1-Sep-09 10:16

Rick York

1-Sep-09 10:16

Then tell him what the right forum is. Roll eyes | :rolleyes:

Re: How to get the Phoneme/Viseme information in audio file for lipsync?

Adam Roderick J6-Sep-09 19:21

Adam Roderick J

6-Sep-09 19:21

Sorry for the delay

i think it will be more suitable forum than this

General-IT-Issues.aspx[^]

Величие не Бога может быть недооценена.

zero termination for BYTE?

Souldrift31-Aug-09 23:20

Souldrift

31-Aug-09 23:20

Hi there,

this might be a slightly stupid question, but when I write a single BYTE into a file (using ofstream), does it need to be null-terminated? Do BYTE streams generally have to be?

Example code:

char* buf = new char[128];
sprintf_s( buf, 128, "TestOutput/RTPEngineBin%04d.out", m_iFileCount );

m_oStream3.open(buf, ios::out|ios::binary);

if( !m_oStream3 ) 
{
	// ...
}

for( int i = 0; i < 12; i++ )
{
	m_oStream3 << header[i];
}


m_oStream3 << data; // data == 1 BYTE


m_oStream3.flush();
m_oStream3.close();

delete [] buf;

This is a small rtp package. Header has 12 bytes and the payload is just a single byte.

Cheers

Souldrift

Re: zero termination for BYTE?

Stuart Dootson31-Aug-09 23:24

Stuart Dootson

31-Aug-09 23:24

Souldrift wrote:
when I write a single BYTE into a file (using ofstream), does it need to be null-terminated? Do BYTE streams generally have to be?

No to both. NULL-termination is merely a C convention for the representation of strings.

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

Re: zero termination for BYTE?

Richard MacCutchan31-Aug-09 23:28

Richard MacCutchan

31-Aug-09 23:28

Souldrift wrote:
Do BYTE streams generally have to be?

Short answer is no.

Since it is your application it is your decision. The only thing to bear in mind is that the program that reads the file needs to understand, and use, the same format rules as the program that writes it.

Re: zero termination for BYTE?

Souldrift1-Sep-09 0:00

Souldrift

1-Sep-09 0:00

Thanks. That´s what I thought. Only someone asked me a question about the topic and got me quite confused.

Souldrift

PNG's and GDI+

VCsamir31-Aug-09 23:20

VCsamir

31-Aug-09 23:20

hi friends,

i have a small problem, i just want to know how to differentiate between the png images
which are having some transparent area and which are without transparent area. Can this be a solution: "pixel by pixel scan the image and check the alpha value of each pixel"
Is there any other way of handling the same. i am using GDI+ for the above.

Thanking in Advance

Samir Satardekar

Re: PNG's and GDI+

Randor 1-Sep-09 21:36

Randor

1-Sep-09 21:36

Hi Samir,

The PNG image has an image header called the IHDR chunk. It contains a single BYTE 'Color Type' value and will be 4 or 6 if the PNG image supports alpha transparency. You can either read this value manually or use GDI+ to read this value.

The Image::GetFlags method[^] will return a ImageFlagsHasAlpha value[^] if the image supports transparency.

Best Wishes,
-David Delaune

Re: PNG's and GDI+

VCsamir3-Sep-09 0:58

VCsamir

3-Sep-09 0:58

Thanks Sir David.. Smile | :)

it really helped me.. thanks for being kind... Big Grin | :-D

Regards
Samir

MSI Migration --- issues

ERLN31-Aug-09 22:04

ERLN

31-Aug-09 22:04

I have application setup that is written in Installshield for Visual C+ 6.0. It has some scripts.Scripts is involved to call the dll functions(dll functions are written by us) that dll is also a part of product setup. Now We need to convert this setup to MSI. How to convert ? how to convert these scripts to msi callable scripts (means how to call the dll functions in msi setup ) Please advice or suggest more on this.

SCSI command release mode problem

Abinash Mohanty31-Aug-09 20:30

Abinash Mohanty

31-Aug-09 20:30

Hi All,
I have developed an application in MFC that is showing the SMART values of SCSI hard disk with the help of scsi commands.The scsi commands needs a dll named wnaspi32.dll(Adaptec) and sys file named aspi32.sys(Adaptec) for building the ASPI layer in Windows XP operating system.Its working well in Debug mode but it fails in Release mode.Can anybody please tell me how to make it run successfully in Release mode or any other way to implement scsi commands?
Thanks
Abinash Mohanty

Re: SCSI command release mode problem

David Crow1-Sep-09 3:07

David Crow

1-Sep-09 3:07

Abinash Mohanty wrote:
Its working well in Debug mode but it fails in Release mode.Can anybody please tell me how to make it run successfully in Release mode or any other way to implement scsi commands?

Highly unlikely since you've failed to isolate and describe the problem. At a minimum, I suggest reading here.

"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: SCSI command release mode problem

Randor 1-Sep-09 22:03

Randor

1-Sep-09 22:03

Abinash Mohanty wrote:
Its working well in Debug mode but it fails in Release mod

This type of thing is very common and has even happened to me a few times. It may be an uninitialized local variable being initialized to 0xccccccc and works great in Debug mode. In Release mode perhaps a check for NULL may be the cause of the problem. There are many other reasons why this could be occuring. You should probably begin by reading the article by Dr. Newcomer.

Surviving the Release Version[^]

You could also spy on the SCSI bus and check if your commands are reaching the target.

Good Luck,
-David Delaune

Re: SCSI command release mode problem

Glamar15-Sep-09 17:49

Glamar

15-Sep-09 17:49

1. Check the C++ head file include path are there in Project Property Setting.
2. Check the *.lib file added in Project Property Setting.
3. Clean the Build first.
4. Rebuild full project again.

Re: SCSI command release mode problem

Glamar15-Sep-09 17:54

Glamar

15-Sep-09 17:54

1. Check the header file path included are there in Project Property Setting.
2. Check the *.lib and *.dll files added in Project Property Setting.
3. Clean the Build first.
4. Rebuild full project again.

Regards
GS

how can i jump from the loop before i exit this program automatically？

Member 3121931-Aug-09 20:00

Member 31219

31-Aug-09 20:00

my program is the following
int m_nCurFrame;// extract the current frame from avi file
int m_nMax; //total frames in the avi file
BOOL bb;

CXXView::CXXView
{
bb = FALSE;
}

void CXXView：：OnAutoProcessing（）// this is a message handler from a menu button
{
while (m_nCurFrame++<m_nmax)
{
if(bb)=""
{=""
break;=""
}=""
.......="" procesing=""

~cxxview::cxxview=""
bb="TRUE;"

when="" i="" exit="" this="" program,="" the="" program="" always="" enter="" ~cxxview,="" then="" onautoprocessing（）,="" because="" object="" is="" dead,="" so="" wrong,but="" want="" to="" entoirly,can="" you="" give="" me="" some="" advices?;

=""

how="" can="" call="" onautoprocessing="" before="" view's="" destructor="" called.=""

<div="" class="ForumSig">In near day,I want to change the TITLEBARINFO of my Program?
My code is following:
#include "winuser.h"
...........
...........
TITLEBARINFO bti;
bti.cbSize = sizeof(TITLBARINFO);
GetTitleBarInfo(GetParent()->m_hWnd,&bti);

But i can't compile these codes,can you tell me how to do?
My program is developed by VC++6.0 under Winxp.

Re: how can i jump from the loop before i exit this program automatically？

Cedric Moonen31-Aug-09 20:23

Cedric Moonen

31-Aug-09 20:23

What do you mean ? Your program will never call OnAutoProcessing on its own when you exit the program. It means you are doing it yourself and then the solution to your problem is simple: don't call OnAutoProcessing when you exit your program Smile | :)

Sorry, but your question is so vague that it's the only answer I can give. Where are you calling OnAutoProcessing ?

Member 31219 wrote:
how can i call the OnAutoProcessing before the view's destructor is called.

By calling it before the end of the program maybe ? Roll eyes | :rolleyes:

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: how can i jump from the loop before i exit this program automatically？

Cedric Moonen31-Aug-09 20:33

Cedric Moonen

31-Aug-09 20:33

BTW, you already asked the question yesterday[^] and people asked you the same question as I did. So, if you don't want to answer questions that people ask you, then don't expect a valid answer because your question doesn't make a lot of sense...

And, what is your signature for ? You've put a question in your signature ? D'Oh! | :doh:

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: how can i jump from the loop before i exit this program automatically？

Adam Roderick J31-Aug-09 20:49

Adam Roderick J

31-Aug-09 20:49

I smell some sort of mistake with the coding.
Well ur information is too little to get the overview.

Величие не Бога может быть недооценена.

Re: how can i jump from the loop before i exit this program automatically？

Iain Clarke, Warrior Programmer31-Aug-09 20:50

Iain Clarke, Warrior Programmer

31-Aug-09 20:50

As Cedric said - you asked this exact same question yesterday.

I replied to it already, asking for specific extra information: http://www.codeproject.com/Messages/3178744/Re-how-can-i-exit-the-program-entirely.aspx[^]

1/ You didn't work out that maybe you should give that information if you want help.

2/ You emailed me directly with the original question (which I don't actually mind), and didn't even give the answer(s) to my questions.

I can see it now...

Patient 31219: "Dr, I am ill, please help."
Dr Iain: "I will be happy to help, Patient 31219. Please tell me something about your symptoms."
Patient 31219: Silence.

Next day:
Patient 31219: "Dr, I am ill, please help."
Dr Cedric: "I will be happy to help, Patient 31219. Please tell me something about your symptoms. Oh, didn't you see my colleague yesterday"
Patient 31219: Silence.

The next day:
Miss 31220: "Please, can you take my boyfriends body away. He died in his sleep, silently. He would have been my husband, but when I broke with chauvinistic convention and asked him to marry me, he never actually replied..."

Iain.

I have now moved to Sweden for love (awwww).
If you're in Scandinavia and want an MVP on the payroll (or happy with a remote worker), or need cotract work done, give me a job! http://cv.imcsoft.co.uk/[^]

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