MsgNumFields

Syntax

MsgNumFields(travhandl);

travhandl

The handle used to identify this specific traversing pass. The handle is specified using the MsgOpen, MsgFrameOpen, or MsgFrameOpen function.

Description

Returns the number of fields in the current block.

Returns

num_fields

The number of fields in the current block.

Example

In this example, the Message contains the blocks blkA, blkB, and blkC structured as shown in the figure below.

The following Before Frame script in a PageOUT Process returns the number of fields in the first instance of block blkB in the first instance of block blkA:

$handle=MsgFrameOpen("blkA:1/blkB:1", 0);

$numFields=MsgNumFields($handle);