:orphan:
# TaoShellGetContext
Returns the user-provided context associated with a `TAOSHELL`
## Synopsis
```
#include "petsctao.h"
PetscErrorCode TaoShellGetContext(Tao tao, void *ctx)
```
Not Collective
## Input Parameter
- ***tao -*** should have been created with `TaoSetType`(tao,`TAOSHELL`);
## Output Parameter
- ***ctx -*** the user provided context
## Note
This routine is intended for use within various shell routines
## See Also
`Tao`, `TAOSHELL`, `TaoCreateShell()`, `TaoShellSetContext()`
## Level
advanced
## Location
src/tao/shell/taoshell.c
## Examples
src/tao/constrained/tutorials/tomographyADMM.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/tao/shell/taoshell.c)
[Index of all Tao routines](index.md)
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