2: static char help[] = "Demonstrates PetscOptionsGetViewer().\n\n";

  4: #include <petscviewer.h>

  8: int main(int argc,char **args)
  9: {
 10:   PetscViewer       viewer;
 11:   PetscErrorCode    ierr;
 12:   PetscViewerFormat format;

 14:   PetscInitialize(&argc,&args,(char*)0,help);
 15:   PetscOptionsGetViewer(PETSC_COMM_WORLD,NULL,"-myviewer",&viewer,&format,NULL);
 16:   PetscViewerPushFormat(viewer,format);
 17:   PetscViewerView(viewer,PETSC_VIEWER_STDOUT_WORLD);
 18:   PetscViewerPopFormat(viewer);
 19:   PetscViewerDestroy(&viewer);
 20:   PetscFinalize();
 21:   return 0;
 22: }