DrawIsNull
Returns PETSC_TRUE if draw is a null draw object.
Synopsis
#include "draw.h"
int DrawIsNull(Draw 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
Graphics (Draw) Index
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