petsc-3.12.4 2020-02-04
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# PetscOptionsViewer

Gets a viewer appropriate for the type indicated by the user

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscOptionsViewer_Private(PetscOptionItems *PetscOptionsObject,const char opt[],const char text[],const char man[],PetscViewer *viewer,PetscViewerFormat *format,PetscBool  *set)

Logically Collective on the communicator passed in PetscOptionsBegin()

### Input Parameters

| opt | - option name
| text | - short string that describes the option
| man | - manual page with additional information on option

### Output Parameter

| viewer | - the viewer
| set | - PETSC_TRUE if found, else PETSC_FALSE

### Notes

Must be between a PetscOptionsBegin() and a PetscOptionsEnd()

See PetscOptionsGetViewer() for the format of the supplied viewer and its options

### See Also

PetscOptionsGetViewer(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetInt(),
PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsBool() PetscOptionsInt(), PetscOptionsString(), PetscOptionsReal(), PetscOptionsBool(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHead(), PetscOptionsStringArray(),PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(), PetscOptionsFList(), PetscOptionsEList()

### Level

beginner

### Location

src/sys/objects/aoptions.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages