PetscDrawIsNull

 Returns PETSC_TRUE if draw is a null draw object.

Synopsis

#include "petscdraw.h" 
int PetscDrawIsNull(PetscDraw draw,PetscTruth *yes)
Not collective

Input Parameter

draw -the draw context

Output Parameter

yes -PETSC_TRUE if it is a null draw object; otherwise PETSC_FALSE

Level:advanced
Location:src/sys/src/draw/interface/dline.c
Index of all Draw routines
Table of Contents for all manual pages
Index of all manual pages