# DMGetDMSNES
get read-only private `DMSNES` context from a `DM` 
## Synopsis
```
#include "petscsnes.h" 
#include "petscdm.h" 
PetscErrorCode DMGetDMSNES(DM dm, DMSNES *snesdm)
```
Not Collective


## Input Parameter

- ***dm -*** `DM` to be used with `SNES`



## Output Parameter

- ***snesdm -*** private `DMSNES` context





## Note
Use `DMGetDMSNESWrite()` if write access is needed. The DMSNESSetXXX API should be used wherever possible.


## See Also
 `DMGetDMSNESWrite()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/utils/dmsnes.c.html#DMGetDMSNES">src/snes/utils/dmsnes.c</A>


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


[Index of all SNES routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
