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# PetscEventPerfLogSetVisible
This function determines whether an event is printed during `PetscLogView()` 
## Synopsis
```
#include "petscsys.h"   
PetscErrorCode PetscEventPerfLogSetVisible(PetscEventPerfLog eventLog, PetscLogEvent event, PetscBool isVisible)
```
Not Collective


## Input Parameters

- ***eventLog  -*** The `PetscEventPerfLog`
- ***event     -*** The event to log
- ***isVisible -*** The visibility flag, `PETSC_TRUE` for printing, otherwise `PETSC_FALSE` (default is `PETSC_TRUE`)



## Options Database Key

- ***-log_view -*** Activates log summary





## Note
This is a low level routine used by the logging functions in PETSc


## See Also
 `PetscEventPerfLogGetVisible()`, `PetscEventRegLogRegister()`, `PetscStageLogGetEventLog()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/logging/utils/eventlog.c.html#PetscEventPerfLogSetVisible">src/sys/logging/utils/eventlog.c</A>


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


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