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R.Nagarajan wrote:
<blockquote cite="mid001b01c52988$2b3aebe0$3ce1a8c0@technicac509e3"
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<div><font face="Arial" size="2">I get the following compilation
error when I try to include the class vtkMyCallBack in my program </font></div>
<div> </div>
<div><font face="Arial" size="2"> <u>error C2660: 'new' : function
does not take 3 parameters</u> (VC++ 6.0)</font></div>
</font></div>
</blockquote>
This probably comes from MFC's "debug-new-wrapping" trick that helps
them give decent file name and line numbers in their memory leak
reporting code. Look for this near the top of your MFC (probably
wizard-generated) source file:<br>
<font color="#000099">#define new DEBUG_NEW<br>
</font><br>
Then, if you look at the definition of DEBUG_NEW, you'll find code like
this in afx.h:<br>
<font color="#000099"><font color="#009900">// Memory tracking
allocation<br>
</font>void* AFX_CDECL operator new(size_t nSize, LPCSTR lpszFileName,
int nLine);<br>
#define DEBUG_NEW new(THIS_FILE, __LINE__)<br>
</font><br>
One way around this is to undef new prior to the callback function's
definition and then re-define it after your callback function.<br>
<font color="#000099">#undef new<br>
</font><font color="#009900">// callback stuff goes in here<br>
</font><font color="#000099">#define new DEBUG_NEW<br>
</font><br>
Another alternative would be to put your callback stuff into a separate
source file that isn't "polluted" by the MFC #defining of new...<br>
<br>
Hope this helps,<br>
David<br>
<br>
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