Error creating objects using constructor with arguments - C / C++ / MFC Discussion Boards

Re: CcheckBoxList issue

p_196013-Mar-09 3:55

p_1960

13-Mar-09 3:55

Thanks for ur answer....but how can i make "All" always as first checkbox...where it"s not happening now....

Re: CcheckBoxList issue

CPallini13-Mar-09 4:08

CPallini

13-Mar-09 4:08

If I understand properly your answer, you have to remove the LBS_SORT style in your list.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- 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.
-- Iain Clarke

[My articles]

Re: CcheckBoxList issue

p_196013-Mar-09 4:12

p_1960

13-Mar-09 4:12

Thanks a lot for ur support and i changed sort property to false in listbox...tha"s it.... Blush | :O

Re: CcheckBoxList issue

CPallini13-Mar-09 4:29

CPallini

13-Mar-09 4:29

You're welcome.
Smile | :)

CRichEditView: Word Break/ Spearator problem

Aruna Jayaraman13-Mar-09 0:57

Aruna Jayaraman

13-Mar-09 0:57

Hi,

I am implementing a FindAndReplace() in CRichEditView where a underscore "_" needs to be treated as a part of the word.

eg. a line has "gz, gz_New, Old_gz" and when I search for gz only the first occurance of gz should be matched, rest which are prefixed or suffixed by "_" shouldnt match.

I dont want the "_" to be considered as a valid word separator or word break, but as a part of the word.

I was told that there is s way to turn off the default word break behavior of MFC. But what I found was for CRichEditCtrl and the things I find for View says they are only available for Asian Languages.

Please Help!.

Thanks
Aruna

Re: CRichEditView: Word Break/ Spearator problem

_AnsHUMAN_ 13-Mar-09 1:36

_AnsHUMAN_

13-Mar-09 1:36

1. Can you not remove the prefixed and the suffixed '_' sign before/after the second gz. Replace the second occurrence with some other character.
2. Also you can take a counter/boolean variable and check for the first occurrence of the '_' sign and set it to non-zero/false value and then go ahead with what you want to do.
I hope I understood your query correctly and this solution helps

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: CRichEditView: Word Break/ Spearator problem

Aruna Jayaraman13-Mar-09 1:46

Aruna Jayaraman

13-Mar-09 1:46

Err!..I was looking for a mfc answer...more elegant.. Smile | :)

I think I need to be overriding the EditWordBreakProc Function and change the behavior when the input flag is WB_ISDELIMITER and return false when the character is "_". Any pit falls to this approach?

http://msdn.microsoft.com/en-us/library/bb761709(VS.85).aspx[^]

Error creating objects using constructor with arguments

NeoAks00713-Mar-09 0:54

NeoAks007

13-Mar-09 0:54

Hi there,
I am facing a very strange problem in creating objects (by calling constructor with arguments) of one class inside another class. I have a situation where I want to create a object of class firstClass inside class secClass using constructor with arguments of firstClass e.g.:

class firstClass{
   string abc;
public:      
      firstClass(string label):abc(label){}    //Want to use this constructor in secClass
};

class secClass{
public:
   firstClass obj1("abc");   //Error C2059: syntax error : 'string' ->> in Visual C++ 2008
   secClass(){}
};

I think the compiler is facing ambiguity regarding the declaration of object obj1 with a function prototype definition. Similar case arises with templates but they can be resolved using typename keyword. Since typename cannot be used outside template declaration, is there any way to achieve instantiation of obj1 ?? Confused | :confused:

Plz help!!!

Re: Error creating objects using constructor with arguments

Cedric Moonen13-Mar-09 1:02

Cedric Moonen

13-Mar-09 1:02

You can't construct to object in the class definition. What you have to do, is construct it in the constructor initialization list. In your cpp (or where your constructor is defined):

secClass::secClass() : obj1("abc")
{
  // Ctor code here.
}

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: Error creating objects using constructor with arguments

NeoAks00713-Mar-09 1:10

NeoAks007

13-Mar-09 1:10

Thanks a lot!! Big Grin | :-D

Problem solved. Thumbs Up | :thumbsup:

How to replace string in _bstr_t

gothic_coder13-Mar-09 0:54

gothic_coder

13-Mar-09 0:54

Hello all..

I'm facing a problem regarding replacing string in _bstr_t type...

Say i've data in "bstr_Data" which is defined as

_bstr_t bstr_Data;

Now this data contain "#" in it.. I've to replace "#" with ";".. All the occurence..
How can i do it..

Thanks

Re: How to replace string in _bstr_t

Ash_VCPP13-Mar-09 1:23

Ash_VCPP

13-Mar-09 1:23

You need to convert bstr to cstring and then use find method of it....

_bstr_t bstrStart(bstr);

  CString s;

  s.Format(_T("%s"), (LPCTSTR)bstrStart);

Thanks A Ton
Ash_VCPP

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 1:50

gothic_coder

13-Mar-09 1:50

I forgot to tell it's WIN32... Will it work??
I mean CString??

Re: How to replace string in _bstr_t

Ash_VCPP13-Mar-09 1:53

Ash_VCPP

13-Mar-09 1:53

it will work if u have taken mfc support while creating your project... Blush | :O

Thanks A Ton
Ash_VCPP

Re: How to replace string in _bstr_t

«_Superman_»13-Mar-09 1:53

«_Superman_»

13-Mar-09 1:53

To use CString in Win32, include the file atlstr.h

«_Superman_»
I love work. It gives me something to do between weekends.

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 2:35

gothic_coder

13-Mar-09 2:35

Including atlstr.h gives me lots of error... Isn't there any way to do with WIN32 functions only???

Re: How to replace string in _bstr_t

Ash_VCPP13-Mar-09 2:43

Ash_VCPP

13-Mar-09 2:43

go to project menu select settings and from tab general select mfc support from the combo compile it n enjoy.....or include string.h file for ur purpose only.

Thanks A Ton
Ash_VCPP

Re: How to replace string in _bstr_t

Jonathan Davies13-Mar-09 1:42

Jonathan Davies

13-Mar-09 1:42

Something base on the following?

#include "stdafx.h"
#include <string>


int _tmain(int argc, _TCHAR* argv[])
{
	std::wstring str1;
	str1 = L"abc#efg#ijk";

	int found = str1.find_first_of(L"#");
	while(found != str1.npos)
	{
		str1.replace(found, 1, L";");
		found = str1.find_first_of(L"#",found+1);
	}
	return 0;
}

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 3:59

gothic_coder

13-Mar-09 3:59

Yes that works..

Many thanks Jonathan...

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 4:02

gothic_coder

13-Mar-09 4:02

One more question...
As i'm using _bstr_t.. So do i need to free it??

Re: How to replace string in _bstr_t

Jonathan Davies13-Mar-09 4:21

Jonathan Davies

13-Mar-09 4:21

_bstr_t have destructors which free the internal string, so if its local the destructor will be called when it goes out of scope. If you created it using 'new' you have to delete it.

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 4:39

gothic_coder

13-Mar-09 4:39

Right.. I'm not creating it using new...So i don't need to free it..
Cool..

Once again thanks Jonathan

Re: How to replace string in _bstr_t

gothic_coder13-Mar-09 5:08

gothic_coder

13-Mar-09 5:08

One more question...
I'm giving something like this.

int found1 = wsVar.find_first_of(L"&&&&");
while(found1 != wsVar.npos)
{
        wsVar.replace(found1, 1, L"\"");
	found1 = wsVar.find_first_of(L"&&&&",found1+1);
}

So wherever it found one "&" it convert to ".. I need that whenever it found "&&&&" then only it replace with "(double quotes only)..

Is it possible???

Thanks

Error in compiling in release mode in VC++

kr_ash13-Mar-09 0:52

kr_ash

13-Mar-09 0:52

Hi All,

I am compiling my project in the release mode in VC++. I have a .def file where i have declared the setLog and now i am getting following error

Linking... Creating library Release/HKL.lib and object Release/HKL.exp HKL_libinterface.obj : error LNK2001: unresolved external symbol _SCTP_setLog@8

Please help me on the above to fix the problem.

Thanks

Re: Error in compiling in release mode in VC++

Jonathan Davies13-Mar-09 0:57

Jonathan Davies

13-Mar-09 0:57

When the project was in Debug configuration perhaps you set the location of the library containing setlog in Project | Properties (but only in Debug config) and now it also needs setting in the properties for Release mode as well?

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