+/// pointer to the initialisation method for any progress bar
+ gdcmMethod* startMethod;
+/// pointer to the incrementation method for any progress bar
+ gdcmMethod* progressMethod;
+/// pointer to the termination method for any progress bar
+ gdcmMethod* endMethod;
+/// pointer to the ??? method for any progress bar
+ gdcmMethod* startMethodArgDelete;
+/// pointer to the ??? method for any progress bar
+ gdcmMethod* progressMethodArgDelete;
+/// pointer to the ??? method for any progress bar
+ gdcmMethod* endMethodArgDelete;
+/// pointer to the ??? for any progress bar
+ void* startArg;
+/// pointer to the ??? for any progress bar
+ void* progressArg;
+/// pointer to the ??? for any progress bar
+ void* endArg;
+/// value of the ??? for any progress bar
+ float progress;
+/// value of the ??? for any progress bar
+ bool abort;