Re: CString/strcpy error - C / C++ / MFC Discussion Boards

Re: SDL window in MFC application.

David Crow1-Jun-06 7:21

David Crow

1-Jun-06 7:21

toxcct wrote:
you idiot.

That's real professional. If it bothers you so, why not simply ignore him? No one deserves to be called an idiot, regardless of their action(s).

"The largest fire starts but with the smallest spark." - David Crow

Re: SDL window in MFC application.

toxcct1-Jun-06 7:24

toxcct

1-Jun-06 7:24

after 2 warnings, i think he searched such a reaction...

btw, i assume the entiere responsibility of my words.

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: SDL window in MFC application.

ThatsAlok1-Jun-06 19:12

ThatsAlok

1-Jun-06 19:12

toxcct wrote:
btw, i assume the entiere responsibility of my words.

Thats MAN word Smile | :)

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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CString/strcpy error

kitty51-Jun-06 5:07

kitty5

1-Jun-06 5:07

I'm absolutly frustrated!
could a fresh set of eyes tell me why i'm getting this error:
(line 55) error C2664: 'strcpy' : cannot convert parameter 1 from 'char' to 'char *'

int main ()
{
CString sentence;
CString str("1");
CString str1("2.1");
CString num('\xDB');
char spc = ' ';
sentence = str + num + num + str1 + num + num;

for(int index = 0; index < (sentence.GetLength()); index++)
{
if(sentence[index] == num)
strcpy( (sentence[index]), spc); //line 55
}

printf ("%s \n",sentence);

return 0;
}

Thanks so much... Confused & Frustrated

Re: CString/strcpy error [modified]

Viorel.1-Jun-06 5:15

Viorel.

1-Jun-06 5:15

The first parameter of strcpy function must be of pointer type, char *, but you supply sentence[index], which is a character of the string, not a pointer.

From the fragment, it seems that you need to replace a character with another one. For this task, try to use the Replace member function instead of your for loop:

<br />
sentence.Replace(num, spc);<br />

-- modified at 11:22 Thursday 1st June, 2006

Re: CString/strcpy error

Karthickg1-Jun-06 5:18

Karthickg

1-Jun-06 5:18

Dear Kitty!

U cannot copy a character to a string!!!
Instead make that space ' ' as " "(i.e, character as string constant)..
Then hope fully it should work.. Smile | :)

Regards
Karthick

Karthick. G

Re: CString/strcpy error

Zac Howland1-Jun-06 5:41

Zac Howland

1-Jun-06 5:41

kitty5 wrote:
for(int index = 0; index < (sentence.GetLength()); index++)
{
if(sentence[index] == num)
strcpy( (sentence[index]), spc); //line 55
}

The above code is VERY VERY bad! Unfortunately, your compiler won't tell you exactly how bad it is, but I'll give you an alternative:

Replace the entire for-loop with the following:
sentence.Replace(spc, _T(' '));

A better solution would be to re-write the entire function to the following:

<br />
int main ()<br />
{<br />
  CString sentence;<br />
  sentence.Format("1  2.1  ");<br />
  printf("%s \n", (const char*)sentence);<br />
  return 0;<br />
}<br />

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: CString/strcpy error

kitty51-Jun-06 5:57

kitty5

1-Jun-06 5:57

Thanks,

Actually I was trying to simulate the output of a load after asking for an input and a current value(in amps) and I'm suppose to get like 0 and 0.5.
But the device kicks out 0'\xDB''\xDB'0.5'\xDB''\xDB'
instead of 0 0.5 .
And sscanf doesn't know what to do with '\xDB'.
I need to just get the 0 and 0.5.

Kitty

Re: CString/strcpy error

Zac Howland1-Jun-06 6:06

Zac Howland

1-Jun-06 6:06

Unless you know exactly how many numbers you will have in there, sscanf isn't a wise choice. You can have strtok do it for you, but the CString::Replace method will work and look cleaner.

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: CString/strcpy error

David Crow1-Jun-06 8:49

David Crow

1-Jun-06 8:49

kitty5 wrote:
And sscanf doesn't know what to do with '\xDB'.

Right, sscanf() does not handle multibyte hexadecimal characters.

"The largest fire starts but with the smallest spark." - David Crow

MSHflexgrid hide column question

Tarek Jabri1-Jun-06 5:05

Tarek Jabri

1-Jun-06 5:05

Hi
I am working on mshflexgrid in mfc
i want to know how can i hide a column, setting the width to zero is one solution ,but the user still can resize it and see the hidden column

thanks alot

Capturing a Windows event

Grimes1-Jun-06 4:58

Grimes

1-Jun-06 4:58

Can someone please tell me if it's possible to capture a windows event(like when you receive a message with windows NET SEND) with a program. And if it is can you get like the IP from where the message was sent?

KOM UIT DAAAAA!!!

Re: Capturing a Windows event

Hamid_RT1-Jun-06 5:58

Hamid_RT

1-Jun-06 5:58

See Capture windows messages[^]
maybe it is some helpful to you

whitesky

Re: Capturing a Windows event

Grimes2-Jun-06 9:28

Grimes

2-Jun-06 9:28

Thanx that did help a bit.

KOM UIT DAAAAA!!!

How to use Tokenize() wid CStrings in VC6

Cyber Friend1-Jun-06 4:55

Cyber Friend

1-Jun-06 4:55

Hi,
I am not able to use Tokenize() method wid CString objects in my VC6 application while same code was compiled successfully in VC.Net.

int curPos = 0;
CString resToken = strDecimalWords.Tokenize(" ",curPos);
while strDecimalWords which is CString object,contains "1 hundred 23".

but VC compiler is showing this compile time error.
f:\advivr\ivractionmanager.cpp(495) : error C2039: 'Tokenize' : is not a member of 'CString'
Can anyone suggest wat to do.

Regards

Cyber Friend

Re: How to use Tokenize() wid CStrings in VC6

Viorel.1-Jun-06 5:21

Viorel.

1-Jun-06 5:21

Since the Tokenize member function was not yet defined in older MFC library, you have to solve the problem in a different way. I think you have to deal with a series of Find(" ") member functions combined with Mid(...), in a loop.

Re: How to use Tokenize() wid CStrings in VC6

Michael Dunn1-Jun-06 6:56

Michael Dunn

1-Jun-06 6:56

You can use AfxExtractSubString() in VC 6.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: How to use Tokenize() wid CStrings in VC6

pgibson0077001-Jun-06 10:33

pgibson007700

1-Jun-06 10:33

How about this little class http://www.codeproject.com/string/ctokenex.asp[^]

FillRect with CBrush question

LukeV1-Jun-06 3:58

LukeV

1-Jun-06 3:58

Hi!

When I call FillRect with a brush created from a bitmap, the rect will get filled but the bitmap is tiled, even though the rect and bitmap size are the same (20 X 20). Is there a reason for that? I thought the bitmap would get displayed correctly!

Screenshot at www.edovia.com/pictures/FillRect.png[^]

<br />
//Draw thumb<br />
    RECT rectThumb;<br />
<br />
    hBitmap = (HBITMAP)LoadImage(NULL, m_szThumb, IMAGE_BITMAP, 0, 0,<br />
		LR_LOADFROMFILE | LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADTRANSPARENT);<br />
<br />
    bitmapThumb.Detach();<br />
    bitmapThumb.Attach( hBitmap );<br />
    bitmapThumb.GetBitmap( &bmp );<br />
<br />
    rectThumb.top       = rectFill.bottom;<br />
    rectThumb.bottom    = rectThumb.top + bmp.bmHeight;<br />
    rectThumb.left      = roundf( ( rectClient.Width() - bmp.bmWidth ) / 2 );<br />
    rectThumb.right     = rectThumb.left + bmp.bmWidth;<br />
<br />
    brush.CreatePatternBrush( &bitmapThumb );<br />
    memDC.FillRect( &rectThumb, &brush );<br />
    brush.DeleteObject();<br />

Re: FillRect with CBrush question

Viorel.1-Jun-06 4:11

Viorel.

1-Jun-06 4:11

Description of CreatePatternBrush says that Windows uses only the first 8 rows and columns of pixels from the bitmap you supplied. If you just need to display an image, why do not use bitmap-drawing functions, like BitBlt?

Re: FillRect with CBrush question

LukeV1-Jun-06 4:37

LukeV

1-Jun-06 4:37

BitBlt did the trick... thanks! Smile | :)

Re: FillRect with CBrush question

Sarath C1-Jun-06 4:35

Sarath C

1-Jun-06 4:35

http://www.codeproject.com/gdi/custom_pattern_brush.asp[^]

Sa^Rath.

"Don't Do Different things... Do Things Differently..."

I HATE ADO - newbie

antonaras1-Jun-06 3:47

antonaras

1-Jun-06 3:47

Hi again guys

This ADO is very frastrating as long as i find out one thing and i try to move on
there comes other problems.
This time i have a problem with _bstr_t

i need to give the value of string token to _bstr_t strName

i tryed _bstr_t= token;

but ofcorse i get incompatible error:: error C2440: 'initializing' : cannot convert from 'class std::basic_string<char,struct std::char_traits<char="">,class std::allocator<char> >' to 'class _bstr

Any other way around
Appreciate

Re: I HATE ADO - newbie

Viorel.1-Jun-06 3:51

Viorel.

1-Jun-06 3:51

Token seems to be of type std::string, so try this:

<br />
_bstr_t s = token.c_str();<br />
<br />

Re: I HATE ADO - newbie

antonaras1-Jun-06 3:57

antonaras

1-Jun-06 3:57

YEAH is Working
Thanks men I'm getting so close
Thanks
Thanks
Thanks Big Grin | :-D

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