PETSc version 3.16.5
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# PetscViewerDrawGetHold

Checks if holds previous image when drawing new image

### Synopsis

    #include "petscdraw.h"
    #include "petscviewer.h"
    PetscErrorCode  PetscViewerDrawGetHold(PetscViewer viewer,PetscBool *hold)

Not Collective

### Input Parameter

| viewer | - the PetscViewer

### Output Parameter

| hold | - indicates to hold or not

### See Also

PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),

### Level

intermediate

### Location

src/sys/classes/viewer/impls/draw/drawv.c
Index of all Viewer routines
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Index of all manual pages