---
name: "MPE_Update"
section: "4"
platform: "linux"
package: "mpi-doc"
version: "1.2.7-9.1"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/MPE_Update"
---

# MPE\_Update(4)

Updates an X11 display

## NAME

MPE\_Update -  Updates an X11 display

## SYNOPSIS

```
#include "mpe.h"
int MPE_Update( handle )
MPE_XGraph handle;
```

## INPUT PARAMETER

- **handle**

  \- MPE graphics handle.

## NOTE

Only after an  *MPE\_Update* can you count on seeing the results of MPE drawing routines.  This is caused by the buffering of graphics requests for improved performance.

## NOTES FOR FORTRAN INTERFACE

The Fortran interface to this routine is different from its C counterpart and it has an additional argument, ierr, at the end of the argument list, i.e. the returned function value (the error code) in C interface is returned as the additional argument in Fortran interface.  The Fortran interface is invoked with the CALL statement.

All MPI and MPE objects, MPI\_Comm, MPE\_XGraph and MPE\_Color, are of type INTEGER in Fortran.

## LOCATION

mpe\_graphics.c