C / C++ / MFC

23-Nov-08 18:57

MsmVc wrote:

How can i hide file name from Program Files folder?

By setting the file attributes to type "HIDDEN"...

Some things seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Hide File Name

Hamid_RT23-Nov-08 20:20

Hamid_RT

23-Nov-08 20:20

Did you see SetFileAttributes?

Re: Hide File Name

MsmVc23-Nov-08 20:41

MsmVc

23-Nov-08 20:41

Thanks to both of you..Problem solved through your repply post..

thanks once again..

comparision of string

tasumisra23-Nov-08 18:36

23-Nov-08 18:36

why we prefer memory comparision(mmcpy) for string apart from values(strcpy)..

trying to enhance my knowledge.. Smile | :)

Thanks in advance

vikas da

_AnsHUMAN_ 23-Nov-08 18:48

23-Nov-08 18:48

memcpy is used to copy a specified number of bytes to a destination and not for comparison and strcpy is used to copy a string to another location ie source to destination.

Some things seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

tasumisra23-Nov-08 19:09

23-Nov-08 19:09

sorry... i wrongly mentioned mmcpy and strcpy those should be mmcmp and strcmp...........

can you please re answer my question

vikas da

_AnsHUMAN_ 23-Nov-08 19:14

23-Nov-08 19:14

strcmp- compare data between two strings. you don't have the advantage of specifying the number of bytes that you want to compare. It's always the complete string that is compared.

tasumisra wrote:
mmcmp

It's memcmp by the way
memcmp provides you the flexibility of comparing bytes in the string by mentioning the count

Some things seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

tasumisra23-Nov-08 19:19

23-Nov-08 19:19

Thanks alot ....
one more question
which one should be prefered for
1.Two constant string
2.One const. and one veriable string..

is it strcmp and memcmp respectively for above ..

vikas da

_AnsHUMAN_ 23-Nov-08 19:27

23-Nov-08 19:27

It depends, whether you want to compare the complete strings or only a few bytes. You should be better off using strcmp in either of the cases if you compare the complete strings

Some things seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

tasumisra23-Nov-08 20:06

Having problem with 2-dimensional dynamic array

23-Nov-08 20:06

Thank you very much ...

vikas da

shahb23-Nov-08 18:24

shahb

23-Nov-08 18:24

I'm currently using 2-dimensional dynamic array as a function parameter to store value of double. My problem is my program sometimes having a runtime error. I've try a m=3200 x n=58 array size, it only run for a wait before aborting the program. When I reduced the size of the array it works. Here is my declaration of the array:

double* precomp=new double[(_CANVAS_WIDTH /_TILE_WIDTH)*(_CANVAS_HEIGHT /_TILE_HEIGHT)*_TILE_COUNT];
int i,j;
   for( i = 0; i < (_CANVAS_WIDTH /_TILE_WIDTH) * (_CANVAS_HEIGHT /_TILE_HEIGHT); i++)
    for(j=0; j< _TILE_COUNT;j++)
      *(precomp + i* _TILE_COUNT+j) = 0.0;

calculate(TheList, Target, precomp);

Here is the function implementation :

void calculate(double* param1, double TargetValue, double* precomp)
{
	double _tile;

	for (unsigned int y=0; y<list_index;>	{
			for (unsigned int j=0; j<num_of_tiles;>			{
				_tile = param1[j];
				cout<<"Pre-calculating value for location"<<y<<":tile "<<j<<endl;
				*(precomp_fitness + i*num_of_tiles + j) = abs(TargetValue - _tile);
             
			}
	}

}

If anyone could help me understand what was happening, it is very appreciated. Thanks.

Re: Having problem with 2-dimensional dynamic array

CPallini23-Nov-08 22:33

CPallini

23-Nov-08 22:33

You probably cannot get meaningful help because:

Your scenario + code don't give enough info (you state m=3200 x n=58) but in your code there are just other constants (such as _CANVAS_WIDTH), that are, for us, of undefined value.
Your code is not properly formatted, see wrong syntax in for iterations inside calculate function.
Your code gives incomplete info (for instance, how are defined the parameters of the calculate function?
You don't provide any debug info (for instance what is the offending line?). You are strongly advised using the debugger, that is the king of the programmer's tools

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-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
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[My articles]

store bitmap into harddisk

220823-Nov-08 17:45

2208

23-Nov-08 17:45

i want to capture desktop and save image on harddisk on path "c\bit.bmp"

i am using following code

HDC dc_desk=::GetWindowDC(::GetDesktopWindow());
HDC dc=CreateCompatibleDC(dc_desk);
HBITMAP hBmp=CreateCompatibleBitmap(dc, 50, 50);
BitBlt(dc, 0, 0, 50, 50, dc_desk, 0, 0, SRCCOPY);

it is compiling without error
how now we can save this image on harddisk path??

Re: store bitmap into harddisk

Hamid_RT23-Nov-08 20:33

Hamid_RT

23-Nov-08 20:33

CImage m;
m.Attach(hbitmap);
m.Save(_T(c:\\1.bmp"));

Re: store bitmap into harddisk

220824-Nov-08 17:03

2208

24-Nov-08 17:03

but i am using vc++ 6.0
Compiler genrate error on "CImage"
is there need to include any type of hearder or library?? if yes then which one?

Re: store bitmap into harddisk

Hamid_RT25-Nov-08 2:44

Hamid_RT

25-Nov-08 2:44

Yeah you need to include AtlImage.h.

Help me

Tsodgorhuu23-Nov-08 17:41

Tsodgorhuu

23-Nov-08 17:41

Hi

Help me.

- Use Visual Studio 2005
- As programming language, use C#

Merge SQLite data with HTML template. This action should be done using one 'Merge' button click.
Show merged document in webbrowser.
Save merged document to PDF.

- Merger

Replaces '##[fieldname]##' in the HTML template document with data from the corresponding
column of the SQLite table.

Create one new page in the document for each record in the SQLite table.

Thank you.

Regards,
Och-Erdene

Wrong Forum

_AnsHUMAN_ 23-Nov-08 18:33

CryptAcquireContext question

23-Nov-08 18:33

Please post it to C# forum.

Some things seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

monsieur_jj23-Nov-08 16:51

monsieur_jj

23-Nov-08 16:51

Hi all,

I just want to know how to use crypting and decrypting properly, let say i have a key named "securityKey" and the value of that key is "password" how will I able to set that up? and use it at CryptAcquireContext is there anything i need to do first? What I did is just #define securityKey "password" and i feel stupid doing it I am having a hard time understanding this cryptography please help me.

Thanks,
Jayjay

How to display a csv file on a click of button

keerthihaasan23-Nov-08 14:26

keerthihaasan

23-Nov-08 14:26

When a button is clicked,a csv file should be opened

Keerthi

Maximilien23-Nov-08 16:25

Maximilien

23-Nov-08 16:25

what about using CFile or CStdioFile to open the text (csv files are text files) file and reading ?

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Chandrasekharan P23-Nov-08 17:12

Chandrasekharan P

23-Nov-08 17:12

Please Provide more information on what u need to do.

keerthihaasan23-Nov-08 18:11

keerthihaasan

23-Nov-08 18:11

In MFC VC++ when a button or a list containing csv files is clicked i should be able to view the contents of the corresponding csv file

These are the contents of the csv file
Sam 24 SoftwareEngineer
Raj 22 ProjectEngineer

Thanks
Keerthi