PA_GetHandleSize

version 2003

PA_GetHandleSize (handle) long

Parameter	Type		Description
handle	PA_Handle		Handle to a block of memory
Function result	long		Size of the data led to by handle

The routine PA_GetHandleSize returns the size of the data led to by handle in bytes.

Handle should be a PA_Handle allocated by PA_NewHandle.

Create a new handle that duplicates an existing handle.

   PA_Handle DuplicateHandle( PA_Handle hsrc )
   {
      long      size;
      PA_Handle   hdest;
      char      *pSrc, *pDest;
      
   // get the source handle size
      size = PA_GetHandleSize( hsrc );

   // make duplicate handle and copy data to it
      hdst = PA_NewHandle( size );
      if ( hdest )
      {
         pSrc = PA_LockHandle( hsrc );
         pDest = PA_LockHandle( hdest );
         PA_MoveBlock( pSrc, pDest, size );
         PA_UnlockHandle( srce );
         PA_Unlockhandle( hdest );
      }
      return hdest;
   }

PA_NewHandle, PA_SetHandleSize.

Use PA_GetLastError to see if an error occurred (not a valid handle, etc.).