petsc-3.14.5 2021-03-03
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# PetscViewerSetOptionsPrefix

Sets the prefix used for searching for all PetscViewer options in the database.

### Synopsis

    #include "petscviewer.h"
    PetscErrorCode  PetscViewerSetOptionsPrefix(PetscViewer viewer,const char prefix[])

Logically Collective on PetscViewer

### Input Parameter

| viewer | - the PetscViewer context
| prefix | - the prefix to prepend to all option names

### Notes

A hyphen (-) must NOT be given at the beginning of the prefix name. The first character of all runtime options is AUTOMATICALLY the hyphen.

### See Also

PetscViewerSetFromOptions()

### Level

advanced

### Location

src/sys/classes/viewer/interface/view.c

### Examples

src/snes/tutorials/ex12.c.html
src/ts/tutorials/ex11.c.html
Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages