:orphan:
# DMRefineHookRemove
remove a callback from the list of hooks, that have been set with `DMRefineHookAdd()`, to be run when interpolating a nonlinear problem to a finer grid 
## Synopsis
```
#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMRefineHookRemove(DM coarse, PetscErrorCode (*refinehook)(DM, DM, void *), PetscErrorCode (*interphook)(DM, Mat, DM, void *), void *ctx)
```
Logically Collective; No Fortran Support


## Input Parameters

- ***coarse -*** the `DM` on which to run a hook when restricting to a coarser level
- ***refinehook -*** function to run when setting up a finer level
- ***interphook -*** function to run to update data on finer levels
- ***ctx -*** [optional] user-defined context for provide data for the hooks (may be `NULL`)





## Note
This function does nothing if the hook is not in the list.


## See Also
 [](ch_dmbase), `DM`, `DMRefineHookAdd()`, `DMCoarsenHookRemove()`, `DMInterpolate()`, `SNESFASGetInterpolation()`, `SNESFASGetInjection()`, `PetscObjectCompose()`, `PetscContainerCreate()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/interface/dm.c.html#DMRefineHookRemove">src/dm/interface/dm.c</A>


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