:orphan:
# DMSubDomainHookRemove
remove a callback from the list to be run when restricting a problem to the coarse grid 
## Synopsis
```
#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMSubDomainHookRemove(DM global, PetscErrorCode (*ddhook)(DM, DM, void *), PetscErrorCode (*restricthook)(DM, VecScatter, VecScatter, DM, void *), void *ctx)
```
Logically Collective; No Fortran Support


## Input Parameters

- ***global -*** global `DM`
- ***ddhook -*** function to run to pass data to the decomposition `DM` upon its creation
- ***restricthook -*** function to run to update data on block solve (at the beginning of the block solve)
- ***ctx -*** [optional] user-defined context for provide data for the hooks (may be `NULL`)





## See Also
 [](ch_dmbase), `DM`, `DMSubDomainHookAdd()`, `SNESFASGetInterpolation()`, `SNESFASGetInjection()`, `PetscObjectCompose()`, `PetscContainerCreate()`

## Level
advanced

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


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