C / C++ / MFC Discussion Boards

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/[^]

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

Rajesh R Subramanian31-Aug-09 20:54

Rajesh R Subramanian

31-Aug-09 20:54

I've never understood the people who ask the same thing every day, expecting a different answer each time. Unsure | :~

There's another repost two threads below, where the OP wants a string with its length being 72K+ to be passed in as a command line arugment. Dead | X|

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

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

Adam Roderick J31-Aug-09 20:57

Adam Roderick J

31-Aug-09 20:57

Thats really sad, that they dont read the msdn for any API since in the later discussed case, the maximum is only 32 k.

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 21:00

Iain Clarke, Warrior Programmer

31-Aug-09 21:00

I saw that! Yikes...

Assuming it's possible, Program A has to make a parsable mile long command line, and Program B has to parse it...

The alternative of using a file is not only possible, it's *easier*. Some people get fixated on a route between two places, that even when a better route to the same destination is shown, they keep walking into the same brick wall.

What's the phrase? "When all you have is a hammer, everything looks like a nail."

Iain.

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

David Crow1-Sep-09 2:57

David Crow

1-Sep-09 2:57

Rajesh R Subramanian wrote:
I've never understood the people who ask the same thing every day, expecting a different answer each time.

Wasn't it Einstein that said insanity is doing the same thing over and over again and expecting different results.

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

Rajesh R Subramanian1-Sep-09 5:17

Rajesh R Subramanian

1-Sep-09 5:17

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

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

Rajesh R Subramanian31-Aug-09 23:36

Rajesh R Subramanian

31-Aug-09 23:36

Iain Clarke, Warrior Programmer wrote:
Patient 31219: ...
Dr Iain: ...
Patient 31219: Silence.

Next day:
Patient 31219: "Dr, I am ill, please help."
Dr Cedric: ...
...

The next day:
Miss 31220: "Please, can you take my boyfriends body away. He died ..."

You sir are implying that... Wink | ;)

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

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

Iain Clarke, Warrior Programmer1-Sep-09 1:18

Iain Clarke, Warrior Programmer

1-Sep-09 1:18

I just looked, and http://www.codeproject.com/script/Membership/View.aspx?mid=31220[^] is nice and anonymous too.

He/she won't be taking offense.

Maybe he just kept saying "Please go out with me" every day, until she gave in and said yes.

Iain.

Hmm, maybe you're implying that I'm implying they're related! OMG | :OMG:

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

Cedric Moonen1-Sep-09 3:59

Cedric Moonen

1-Sep-09 3:59

Could you please stop sending private e-mails repeating exactly the same thing as the question you asked on the forum ? Is it so difficult to answer the questions that people ask you instead of repeating the same thing over and over again ?

Cédric Moonen
Software developer

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

Hash Look up Logic

mohant$.net31-Aug-09 19:55

mohant$.net

31-Aug-09 19:55

Hi All

I tried hash Look up logic in C.I got unique hash value, but my look up table have only 5000 records so i need to reduce my hash value.

logic
h=h<<5+h+c

h=default value 3.

c=input character ascii value.

For Ex:
Input :Jon
Output:227018.

currently am getting hash value in billion or million.I want my hash value with in 5000.

I tried Mod function too..But it is giving duplicate value.So plz gimme solution for this....

Note:Input is string and output is number(for hash value).

Thanks,
Mohan.T

Mohan t working for N.I.C

Re: Hash Look up Logic

Adam Roderick J31-Aug-09 20:09

Adam Roderick J

31-Aug-09 20:09

CRC 8 bit.

Величие не Бога может быть недооценена.

Re: Hash Look up Logic

mohant$.net31-Aug-09 20:16

mohant$.net

31-Aug-09 20:16

Am not getting..Plz gimme some more details

Thanx

Mohan t working for N.I.C

Re: Hash Look up Logic [modified]

Adam Roderick J31-Aug-09 20:31

Adam Roderick J

31-Aug-09 20:31

CRC is a non secured hashing function and it is widely used one.
For 5000 i think CRC 12 or CRC 13 as per ur need.

Just refer the below link

http://en.wikipedia.org/wiki/Cyclic_redundancy_check[^]

i am giving and example of for CRC 16 given below

const WORD CRC16BIT_TAB[8] =
{
0x0000, 0xCC01, 0xD801, 0x1400,
0xF001, 0x3C00, 0x2800, 0xE401,
};

unsigned int CRC16( const BYTE* pBuffer, const int nLength )
{
unsigned int ulCRCRet = 0;
unsigned int ulTempVal = 0;
int nIndex = 0;
for(nIndex = 0; nIndex < nLength; nIndex++, pBuffer++)
{
// lower 4 bits
ulTempVal = CRC16BIT_TAB[ulCRCRet & 0x000F];
ulCRCRet = (ulCRCRet >> 4) & 0x0FFF;
ulCRCRet = ulCRCRet ^ ulTempVal ^ CRC16BIT_TAB[*pBuffer & 0x000F];

// Upper 4 bits
ulTempVal = CRC16BIT_TAB[ulCRCRet & 0x000F];
ulCRCRet = (ulCRCRet >> 4) & 0x0FFF;
ulCRCRet = ulCRCRet ^ ulTempVal ^ CRC16BIT_TAB[(*pBuffer >> 4) & 0x000F];
}
return ulCRCRet;
}

int main(int argc, char* argv[])
{
BYTE data[] = { 'A', 'D', 'E', 'R', 'T', 'W', 'i', 'E', 'Y', 't' ,'h', 'e', 'm', 'r', 'T'};
unsigned short int ulCRCVal = 0;
ulCRCVal = CRC16(data, sizeof(data) / sizeof(data[0]));
std::cout << ulCRCVal << ::std::endl;
return 1;
}

Величие не Бога может быть недооценена.

modified on Tuesday, September 1, 2009 2:39 AM

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