:orphan:
# PetscObjectIncrementTabLevel
Increments the number of tabs that `PETSCVIEWERASCII` output for that object use based on the tablevel of another object. This should be called immediately after the object is created. 
## Synopsis
```
#include "petscsys.h"    
PetscErrorCode PetscObjectIncrementTabLevel(PetscObject obj, PetscObject oldobj, PetscInt tab)
```
Not Collective


## Input Parameters

- ***obj -*** any PETSc object where we are changing the tab
- ***oldobj -*** the object providing the tab, optional pass `NULL` to use 0 as the previous tablevel for `obj`
- ***tab -*** the increment that is added to the old objects tab





## Note
this is used to manage the output from options that are embedded in other objects. For example
the `KSP` object inside a `SNES` object. By indenting each lower level further the hierarchy of objects
is very clear.


## See Also
 `PETSCVIEWERASCII`, `PetscObjectSetTabLevel()`, `PetscObjectGetTabLevel()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/objects/gcomm.c.html#PetscObjectIncrementTabLevel">src/sys/objects/gcomm.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex77.c.html">src/ts/tutorials/ex77.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/objects/gcomm.c)


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