# PetscObjectComposeLanguage

Sets a language specific interface to the given object

### Synopsis

    #include "petsc.h"
    int PetscObjectComposeLanguage(PetscObject obj,PetscLanguage lang,void *ptr)

Not Collective

### Input Parameters

| obj | - the PETSc object Thus must be cast with a (PetscObject), for example, PetscObjectCompose((PetscObject)mat,...);
| lang | - one of PETSC_LANGUAGE_C, PETSC_LANGUAGE_F77, PETSC_LANGUAGE_CPP
| ptr | - the language specific interface

### See Also

PetscObjectQuery()

Level:developer
Location: src/sys/src/objects/inherit.c
Index of all Sys routines
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Index of all manual pages