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Questionuser defined drag drop control in vc++ Pin
Prajakta Apte 31-Jan-10 1:44
Prajakta Apte 31-Jan-10 1:44 
Questionsave file error! Pin
wbgxx31-Jan-10 1:25
wbgxx31-Jan-10 1:25 
AnswerRe: save file error! Pin
Cedric Moonen31-Jan-10 1:43
Cedric Moonen31-Jan-10 1:43 
AnswerRe: save file error! Pin
Richard MacCutchan31-Jan-10 2:38
mveRichard MacCutchan31-Jan-10 2:38 
QuestionProblem with CFile:Open and Sharing Violation [modified] Pin
hollesser00130-Jan-10 23:20
hollesser00130-Jan-10 23:20 
AnswerRe: Problem with CFile:Open and Sharing Violation Pin
Garth J Lancaster31-Jan-10 0:09
professionalGarth J Lancaster31-Jan-10 0:09 
QuestionRe: Problem with CFile:Open and Sharing Violation Pin
hollesser00131-Jan-10 3:00
hollesser00131-Jan-10 3:00 
Questiondetect enter key on edit control Pin
Sauce!30-Jan-10 22:14
Sauce!30-Jan-10 22:14 
AnswerRe: detect enter key on edit control Pin
Alain Rist30-Jan-10 23:02
Alain Rist30-Jan-10 23:02 
GeneralRe: detect enter key on edit control Pin
Sauce!30-Jan-10 23:21
Sauce!30-Jan-10 23:21 
GeneralRe: detect enter key on edit control Pin
Alain Rist30-Jan-10 23:22
Alain Rist30-Jan-10 23:22 
AnswerRe: detect enter key on edit control Pin
Richard MacCutchan31-Jan-10 1:25
mveRichard MacCutchan31-Jan-10 1:25 
GeneralRe: detect enter key on edit control Pin
Sauce!31-Jan-10 2:12
Sauce!31-Jan-10 2:12 
QuestionSet background color of Menu. Pin
Le@rner29-Jan-10 20:17
Le@rner29-Jan-10 20:17 
AnswerRe: Set background color of Menu. Pin
LunaticFringe30-Jan-10 1:47
LunaticFringe30-Jan-10 1:47 
Questionchar* returns garbage value Pin
Anu_Bala29-Jan-10 19:10
Anu_Bala29-Jan-10 19:10 
AnswerRe: char* returns garbage value Pin
Richard MacCutchan29-Jan-10 22:23
mveRichard MacCutchan29-Jan-10 22:23 
AnswerRe: char* returns garbage value Pin
«_Superman_»30-Jan-10 20:28
professional«_Superman_»30-Jan-10 20:28 
Questionextracting data from .TXT file Pin
benjamin yap29-Jan-10 17:20
benjamin yap29-Jan-10 17:20 
AnswerRe: extracting data from .TXT file Pin
Richard MacCutchan29-Jan-10 22:19
mveRichard MacCutchan29-Jan-10 22:19 
AnswerRe: extracting data from .TXT file Pin
enhzflep30-Jan-10 7:02
enhzflep30-Jan-10 7:02 
AnswerRe: extracting data from .TXT file Pin
Moak30-Jan-10 13:11
Moak30-Jan-10 13:11 
QuestionAutoRestart + Execute Useer Code Pin
Bram van Kampen29-Jan-10 14:24
Bram van Kampen29-Jan-10 14:24 
QuestionAccessing vars in class created with new Pin
al250029-Jan-10 12:48
al250029-Jan-10 12:48 
AnswerRe: Accessing vars in class created with new Pin
Avi Berger29-Jan-10 14:00
Avi Berger29-Jan-10 14:00 
What you are experiencing is a warning that you probably have a design problem.

If you are working on objects via pointers to a base class, generally all that the code that uses the base class pointer should care about is the base class interface, irregardless of whether the actual object is of base class or derived type.

The immediate questions that your post brings up are: Why are you using a pointer to a dynamically allocated object here? Is there a better design available?

If you are really stuck with this yucky situation the next questions are: How do I know the what the actual type of object this pointer is pointer to is? What do I do in which case of what derived type it is? Can't I come up with a better design that avoids the mess I may be creating?

The best thing to do would probably be to share the situation & your design goal, so that people can give you advice on other ways of dealing with it.

If all my ranting and raving doesn't dissuade you, then you probably want to look up and familiarize yourself with the C++ dynamic_cast<> operator.

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