Re: genetic algorithm - C / C++ / MFC Discussion Boards

problem executing EXE file with shellexecute

Green Fuze11-Apr-05 7:00

11-Apr-05 7:00

Hey Everybody!

I wrote this code:

HINSTANCE hInst = ShellExecute(0,                           <br />
    "open",                     <br />
    "C:\\Bonus.exe",  <br />
    NULL,<br />
    NULL,                           <br />
    SW_SHOW);<br />

for some reason the code does NOTHING! it does not execute the exe file.
by the way, it is a flash projector (the exe file).

does anyone has any idea what may cause this problem, and how to solve it?

Thanks!!!

Re: problem executing EXE file with shellexecute

Daniel132411-Apr-05 8:01

Daniel1324

11-Apr-05 8:01

Check the return value... if its less than or equal to 32, then an error has occured. Look up ShellExecute in MSDN for the error codes.

Re: problem executing EXE file with shellexecute

Green Fuze11-Apr-05 12:36

Green Fuze

11-Apr-05 12:36

thanks!

but I already fixed it.

it seems that I had a typo somewhere in my code, but for some reason the compiler ignored it... (?!)

thanks anyone Smile | :)

Re: problem executing EXE file with shellexecute

ddmcr11-Apr-05 8:31

ddmcr

11-Apr-05 8:31

Try this

WinExec("c:\\Bonus.exe",1);

m0n0

DevStudio Macros

Kyudos11-Apr-05 6:08

Kyudos

11-Apr-05 6:08

I couldn't find an appropriate forum ;o)

Does anyone know if it is possible to write a macro in DevStudio to open the build directory of the executable/dll/lib that you've just built?
On a per configuration basis?

I'm forever having to browse for those directories and it seems like such a simple thing...but I've looked at the macro help and the DevStudio objects and I can't see anything likely ...

Cheers,

Dan

genetic algorithm

smarty1211-Apr-05 5:46

smarty12

11-Apr-05 5:46

hello friends
i am making a project on intrusion detection system in which i m using genetic algorithm and want some guidance in genetic algorithm.
thanx
bye

Re: genetic algorithm

Chris Meech11-Apr-05 6:23

Chris Meech

11-Apr-05 6:23

I'd suggest you use the fork() function.

Chris Meech

I am Canadian. [heard in a local bar]

Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]

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Re: genetic algorithm

liquid_11-Apr-05 7:06

liquid_

11-Apr-05 7:06

There are some places on the web for genetic algorithms, e.g http://lancet.mit.edu/ga. I suggest reading a book of David Goldberg about GA.

How can I use the CCriticalSection?

zhenyuanwu11-Apr-05 5:03

zhenyuanwu

11-Apr-05 5:03

I defined the variable as
CCriticalSection m_sync;

and used the variable m_sync as
m_sync.Lock();
...
m_sync.Unlock();

but there were the errors as follows:
C:\Documents and Settings\ACER\桌面\wzy1\wzy1View.cpp(20) : error C2146: syntax error : missing ';' before identifier 'm_Sync'
C:\Documents and Settings\ACER\桌面\wzy1\wzy1View.cpp(20) : error C2501: 'CCriticalSection' : missing storage-class or type specifiers
C:\Documents and Settings\ACER\桌面\wzy1\wzy1View.cpp(20) : fatal error C1004: unexpected end of file found
Generating Code...
Error executing cl.exe.

Why is that?
I am rather confused!

Thank you!

Re: How can I use the CCriticalSection?

David Crow11-Apr-05 5:21

David Crow

11-Apr-05 5:21

Did you include afxmt.h?

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

Re: How can I use the CCriticalSection?

BambooMoon11-Apr-05 9:43

BambooMoon

11-Apr-05 9:43

You might also want to look at using InitializeCriticalSection(), EnterCriticalSection(), and LeaveCriticalSection()

Binary/Hex/Octal to Integer

MadFruit11-Apr-05 4:44

MadFruit

11-Apr-05 4:44

Hi all,

I am struggling trying to write a function that will take a hex, octal or binary number as a string, and then convert it to an integer, and return that as a string.

The catch?

The value is going to be substatially bigger than INT_MAX. Unfortunatly to meet my needs, this is also going to have to be a static function(s), so no new classes with overloaded operators.

Any ideas?

Cheers,
MadFruit

Re: Binary/Hex/Octal to Integer

David Crow11-Apr-05 4:51

David Crow

11-Apr-05 4:51

Have you looked into strtoul()? For example:

unsigned long ulNumber;
char *endptr;
 
ulNumber = strtoul("0x123", &endptr, 16);
ulNumber = strtoul("110100111", &endptr, 2);
ulNumber = strtoul("1053", &endptr, 8);

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

Re: Binary/Hex/Octal to Integer

MadFruit11-Apr-05 4:59

MadFruit

11-Apr-05 4:59

Unfortunatly, and unsigned long, is not likely to be large enough. The binary values that I will potentailly have to handle could have N bits. Existing types are not going to help much I think.

The route I believe I have to take is to try and cut the numbers down to handlable, convertable sizes, and then somehow add them together. But I am not really sure.

Re: Binary/Hex/Octal to Integer

ddmcr11-Apr-05 5:18

ddmcr

11-Apr-05 5:18

I am working on similar project, and i have written four functions :

CString Add(CString s1,CString s2)
CString Sub(CString s1,CString s2)
CString Multiply(CString s1,CString s2)
CString Divide(CString s1,CString s2)

which as you see return CString values .
and finally converting to any other base is no more a problem ,
using these functions you can convert to binary any number,using simple algorithm dividing by 2 (16 if Hex and 8 if Oct) ,,,,.
But my problem is that it takes too long to convert for example 500 digit number to binary.
So i think you'll also have to write smth .similar to these functions first and then think of converting from one base to another

Good Luck!

m0n0

Easy console programming question

Joel Holdsworth11-Apr-05 4:34

Joel Holdsworth

11-Apr-05 4:34

Hi All...
This question has gotta be really simple... I'm trying to read 8 characters from stdin. So if the user types 1233456789abcdef<enter>, my string buffer (of size 9) gets filled with "12345678\0". If the user just hits enter, then I want the string to just get "\0" in it. Sounds simple right?

I've tried using

char text[9];
memset(text, 0, sizeof(text);
scanf("%8s", text);

Which works fine, except if you want to enter blank - just hitting enter, scanf won't stop scanning until you type something, and then hit enter.

Next I tried using fgets. Which works better in this respect:

char text[9];
memset(text, 0, sizeof(text);
fgets(text, 9, stdin);

So if you just hit enter, then all that ends up in text is "\0". Fine. But if the user types 123456789abcdef<enter>, then "12345678" gets transfered into text, but the remaining charachters "9abcdef" seem to linger in stdin, so if you call scanf, or fgets immediatly afterwards e.g. for a second parameter input, the function sees this input, rather than asking for some fresh input (which is what I want) - even though they're just spurious charachters that I don't care about! So is there a better way of doing this? possibly a way of discarding the spurious characters.

[EDIT]Putting fseek(stdin, 0, SEEK_END); between my fseeks and scanfs seems to help. Is this a good way of doing it?[/EDIT]

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

Re: Easy console programming question

Cedric Moonen11-Apr-05 4:38

Cedric Moonen

11-Apr-05 4:38

Take a look at fflush()

Re: Easy console programming question

David Crow11-Apr-05 4:54

David Crow

11-Apr-05 4:54

Have you considered using _getche()? That way you can control exactly how many characters, and which ones, are entered.

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

Help me, plz (i've a problem with CStatic)

thanh-hai.bui11-Apr-05 3:59

thanh-hai.bui

11-Apr-05 3:59

Hi all!

I've a dialog, in the function : DoDataExchange(CDataExchange* pDX)

//{{AFX_DATA_MAP(CCEdataTextEditorDlg)<br />
	DDX_Control(pDX, IDC_BMP_NEW, test);<br />
	//}}AFX_DATA_MAP

in OnInitDialog():

DWORD dwStyle = WS_VISIBLE|SS_BITMAP|SS_NOTIFY;<br />
	cRect.SetRect( 0, 0, 17, 15 );<br />
	m_csNew.Create(NULL, dwStyle, cRect, this, IDC_BMP_NEW);// IDC_BMP_NEW is declared in a resource file (myResource.h)<br />
	m_bmp.LoadBitmap(IDR_BMP_NEW1);// In resource.h<br />
	m_csNew.SetBitmap(HBITMAP(m_bmp));

.h file :

CRect cRect;<br />
  CStatic m_csNew;<br />
  CBitmap m_bmp;<br />
  CMyClass test;// Here, i declare a class that extends CStatic<br />

anf, finally, i get a error when i compile :

Debug Assertion Failed!
...
File : wincore.cpp
Line : 312

Do u see my pb?? Help me

PS: when i delete DDX_Control(pDX, IDC_BMP_NEW, test);
--> it's OK, but i have any actions!

I think, we have to declare m_csNew.Create(...) before DoDataExchange, but i don't know how to do it Big Grin | :-D

Re: Help me, plz (i've a problem with CStatic)

David Crow11-Apr-05 4:40

David Crow

11-Apr-05 4:40

thanh-hai.bui wrote:
i get a error when i compile :

Debug Assertion Failed!

Assertions happen at run-time not compile-time.

thanh-hai.bui wrote:
File : wincore.cpp
Line : 312

Have you set a breakpoint on line 312 of wincore.cpp?

thanh-hai.bui wrote:
PS: when i delete DDX_Control(pDX, IDC_BMP_NEW, test);
--> it's OK, but i have any actions!

From the code snippet you've provided, two CStatic variables (m_csNew and test) are being mixed. If you already have a static control as part of the dialog template (test), why are you creating another at run-time (m_csNew)?

Unless you are bent on using a static control to display the image, why not just use a picture control. It's much easier and doesn't require any code.

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

need a function for c language

zhuangfanyin11-Apr-05 3:31

zhuangfanyin

11-Apr-05 3:31

hi,
i am learning c code, and i am looking for a function 2 calculate the short way in a map, does anyone have such function, thx Big Grin | :-D

Re: need a function for c language

toxcct11-Apr-05 3:35

toxcct

11-Apr-05 3:35

isn't the shortest way between two points the line ?

Big Grin | :-D

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: need a function for c language

Cedric Moonen11-Apr-05 3:40

Cedric Moonen

11-Apr-05 3:40

I think we were thinking the same thing Laugh | :laugh:

Re: need a function for c language

zhuangfanyin11-Apr-05 4:08

zhuangfanyin

11-Apr-05 4:08

yep,i mean there are lotz of points, find the shortest way bewteen 2 points

Re: need a function for c language

Cedric Moonen11-Apr-05 3:39

Cedric Moonen

11-Apr-05 3:39

I think this will depend a lot of how your map is implemented. You know, if I had to respond to your question like it is asked, the response is simple: it's the straigh line !! But I suppose it's not the solution you want to hear isn't it Poke tongue | ;-P

? So try to be a little bit more precise...

You can also look for the A* pathfinding algorithm (a google search gave me these links[^]

Maybe it will be helpfull...

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