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 PPCSNDFREE()
 Determines the number of free characters in a communication sending buffer
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 Syntax

     PPCSNDFREE(<nHandle>) --> nBytes

     Netware: 2.2 and 3.11

 Argument

     <nHandle>  Designates the communication sending buffer.

 Returns

     PPCSNDFREE() returns the free memory in the specified communication
     sending buffer in bytes.  If an error occurs (for example, if the handle
     is invalid), the function returns -1.

 Description

     PPCSNDFREE() determines the number of characters that are still free in
     the sending buffer of the specified communication buffer, independently
     of the protocol used (IPX, SPX, NetBIOS datagram, or NetBIOS session).

 Example

     Determine the free memory in a sending buffer:

     ? PPCSNDFREE(nHandle)