[vtkusers] How to use vtkDebugMacro

[Elvis Dowson]

Hi,
            When I declare vtkDebugMacro(<<"Entering constructor");  
inside the constructor of a vtk class and compile, I get a couple of  
errors saying that vtkDebug, etc is not defined.

Question 01: What should I do to enable debugging output in vtk?

Question 02: I am using vtk with Qt, so should I use vtk debugging  
macros for vtk classes and Qt debugging macros for the Qt application  
part?

Question 03: Any hints or examples for using debugging macros for vtk  
and Qt?

Question 04: Is there a way to print out the function call stack trace  
using the Xcode debugger?

Best regards,

Elvis Dowson