hpux man page for tt_message_context_xval

tt_message_context_xval(library call)									     tt_message_context_xval(library call)

NAME
       tt_message_context_xval -- retrieve and deserialize the data from a message's context

SYNOPSIS
       #include <Tt/tt_c.h>
       Tt_status tt_message_context_xval(
       Tt_message m,
       const char *slotname,
       xdrproc_t xdr_proc,
       void **value);

DESCRIPTION
       The tt_message_context_xval function retrieves and deserializes the data from a message's context.

       The  m  argument is the opaque handle for the message involved in this operation.  The slotname argument describes the context of this mes-
       sage.  The xdr_proc argument points to the XDR procedure to be used to deserialize the data in the nth argument into newly allocated  stor-
       age, the address of which will be stored in the pointer whose address is value.

       The value argument is the data to be deserialized.

RETURN VALUE
       Upon successful completion, the tt_message_context_xval function returns the status of the operation as one of the following Tt_status val-
       ues:

       TT_OK	 The operation completed successfully.

       TT_ERR_MODE
		 The specified Tt_mode is invalid.

       TT_ERR_NOMP
		 The ttsession(1) process is not running and the ToolTalk service cannot restart it.

       TT_ERR_POINTER
		 The pointer passed does not point to an object of the correct type for this operation.

       TT_ERR_NUM
		 The integer value passed was invalid (out of range).

       TT_ERR_XDR
		 The XDR procedure failed on the given data, or evaluated to a zero-length expression.

APPLICATION USAGE
       The allocation calls are made by the XDR procedure; therefore, any storage allocated is not allocated from the ToolTalk	allocation  stack.
       The application should use the xdr_free(3) call to free this storage.

SEE ALSO
       Tt/tt_c.h - Tttt_c(5)

													     tt_message_context_xval(library call)