C / C++ / MFC

Re: Return more than one parameter from a single function

18-Dec-07 23:31

You can handle it as void, as bool or as you want. I.E. if you check the values of word_count and char_count before going out that function you can return FALSE if there was an error or TRUE if all worked good.

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--------
M.D.V. Wink | ;)

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CPallini18-Dec-07 23:56

CPallini

18-Dec-07 23:56

The bool value returned by the function has nothing to do with the assignment of the word_count and char_count parameters.

The function suggested doesn't uses the return value to transfer the required info to the caller, it instead directly access the caller variables to the purpose (the bool return value can be merely used to report if the whole operation succeeded).
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Re: Return more than one parameter from a single function

CodingLover19-Dec-07 0:16

CodingLover

19-Dec-07 0:16

Ok, I got the point. Now it is clear to me. Thanks fro all your replays.

I appreciate your help all the time...
Eranga Smile | :)

Re: Return more than one parameter from a single function

Nelek18-Dec-07 23:28

Re: Return more than one parameter from a single function

18-Dec-07 23:28

AFAIK you can not return two parameters at once. You can return a structure having more parameters, you can decide which parameter to return through If, elses. But not to return two different parameters in the same return.

What you are making is giving the 2 Ints as reference to your function, so that when you end and come back to the calling point, you will have the values of your counts in the "parent" scope.

void AnyFunction ()
{
   int nChar = 0;
   int nWord = 0;

   string rtf = GetYourString ();

   bool bRet = CharWordCount(rtf, &nWord, &nChar);

   printf ("there are %d words and %d characters in the string", nWord, nChar);
}

what you have to code inside the function CharWordCount () is in the answers of your question of yesterday or 2 days ago.

Greetings.
--------
M.D.V. Wink | ;)

CodingLover18-Dec-07 23:43

CodingLover

18-Dec-07 23:43

Nelek wrote:
What you are making is giving the 2 Ints as reference to your function, so that when you end and come back to the calling point, you will have the values of your counts in the "parent" scope.

Actually I do this in main function. But still what I'm confusing is that, usage of 'bool'

On my main I do this,

	int word_count = 0;
	int char_count = 0;
	WordCount(strRTF, word_count, char_count);
	printf("\nWords %d Characters %d", word_count, char_count);
<pre>

I appreciate your help all the time...
Eranga Smile | :)

Re: Return more than one parameter from a single function

Nelek19-Dec-07 0:24

Re: Return more than one parameter from a single function

19-Dec-07 0:24

As I told above, the bool has no sense in this function, but the possibility to give back a TRUE or FALSE depending on if there is an error or not, or if the parameters have sense or not or whatever else. You can get the bool away and code your function as void without any problem.

Greetings.
--------
M.D.V. Wink | ;)

Hamid_RT19-Dec-07 1:33

Hamid_RT

19-Dec-07 1:33

Why you didnt use of a structure for return value?

Re: Return more than one parameter from a single function

CPallini19-Dec-07 2:17

CPallini

19-Dec-07 2:17

Generally speaking that isn't a good idea: it is inefficient.
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.

Re: Return more than one parameter from a single function

David Crow19-Dec-07 3:00

David Crow

19-Dec-07 3:00

Eranga Thennakoon wrote:
One of my friend say i can do it as above. using the bool type return value.

Get a new friend that knows a bool is only 1 byte in size, thus can only hold a value of 256 (assuming unsigned). Either that or only plan on counting 128 words and 128 characters.

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vc++ to actionscript

aravindakumar18-Dec-07 22:31

aravindakumar

18-Dec-07 22:31

how can i call the actionscript function using vc++.

Nelek18-Dec-07 22:39

18-Dec-07 22:39

What do you mean with "actionscript"?? (I know actionscript from Macromedia Flash, but in the help of VC++ 6.0 there is no "actionscript")

Greetings.
--------
M.D.V. Wink | ;)

aravindakumar18-Dec-07 23:04

aravindakumar

18-Dec-07 23:04

thanks.

i want to call the flash function throught to vc++ code .how to do?

Nelek18-Dec-07 23:10

18-Dec-07 23:10

To call a flash function... I don't know if it is even possible. To call a *.exe flash project, yes, you can call any other *.exe files from VC++. About the *.swf ... I am not sure about.

Maybe with a bit more info about what you want to do, others can help you better than I

Greetings.
--------
M.D.V. Wink | ;)

aravindakumar18-Dec-07 23:08

aravindakumar

18-Dec-07 23:08

flash.external.ExternalInterface.addCallback("hidedetails", this, hidedetails);
function hidedetails()
{
setProperty("a row 1",_visible, false);
setProperty("a row 2",_visible,false);
setProperty("a row 3",_visible, false);
setProperty("a row 4",_visible,false);
setProperty("a row 5",_visible,false);
}

above the function in flash. now i want to call this function in vc++.how to do it?

msr_codeproject25-Dec-07 21:59

msr_codeproject

25-Dec-07 21:59

I think u r using an ActiveX called "ShockwaveFlashObject".
create a member variable for that. And

membervariable.SetVariable("flashobject.hidedetails", "");

Here flashobject is the object(in flash code) to which actionscript code is linked.

Application Crash error

Atul2318-Dec-07 21:26

Atul23

18-Dec-07 21:26

Hi All,

I my project when I run the application then it crash and when I
debug that application then it is working fine. So can any body give me solution to this problem.

Thanks in Advance
am

Don Box18-Dec-07 21:32

Don Box

18-Dec-07 21:32

Send me u'r project.

Come online at:-
jubinc@skype

CPallini18-Dec-07 21:46

CPallini

18-Dec-07 21:46

Have a look at http://www.flounder.com/debug_release.htm[^]
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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.

Peter Weyzen18-Dec-07 21:53

Peter Weyzen

18-Dec-07 21:53

most often the cause is an unitialized variable...

Are there any warnings when you compile your program? Did you fix them?

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
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Staff Engineer<br />
<a href="http://www.soonr.com">SoonR Inc -- PC Power delivered to your phone</a>

Nelek18-Dec-07 22:22

18-Dec-07 22:22

In the release you must have no errors in variables initialization, by default the debug version makes "some tricks" that avoid crashes due to bad initializations.

Take a look around your code (specially by starting sections that you programmed, altough I recommend you to the whole programm) and be sure that you are giving a "valid" value to EVERY variable you declare. No matter if local, global, one type or another. Use "0", "NULL", "-1" whatever you want, but use something.

Greetings.
--------
M.D.V. Wink | ;)