Example - LayoutQueryValues

This example first sets the values of an existing layout object then queries these values using the LayoutQueryValues function.

#include <layout.h>

LAYOUT_OBJECT plh;
LAYOUT_VALUES layout[3];
LAYOUT_TEXT_DESCRIPTOR Descr;
PLAYOUT_TEXT_DESCRIPTOR Pdescr ;
BOOL CallerAllocate;
ULONG index;
ULONG RC;



  layout[0].name= CallerAllocMem;

  layout[0].value=&CallerAllocate;

  CallerAllocate = TRUE ;

  layout[1].name = 0 ;

  /* Set the LayoutValues   */
  RC=LayoutSetValues (plh,layout,&index);

  if (RC)
  {
        printf("SetValue Error at index %d !!!\n",index);
        exit(0);
  }

  Pdescr = (PLAYOUT_TEXT_DESCRIPTOR)malloc(sizeof (LAYOUT_TEXT_DESCRIPTOR));
  layout[0].name  =  Orientation;
  layout[0].value =  Pdescr;

  layout[1].name=0;           /* End of change */

  RC = LayoutQueryValues(plh,layout,&index);
  if (RC)
  {
        printf("QueryValue Error at index %d !!!\n",index);
        exit(0);
  }
  printf("Orientation in = %lx  out = %lx",Pdescr->in,Pdescr->out);

  free(Pdescr);

  RC = LayoutDestroyObject(plh);
  if (RC) { printf(" DESTROY Error!!!\n"); exit(0);}