NAME

tt_message_opnum − retrieve the operation number attribute from a message

SYNOPSIS

#include <Tt/tt_c.h>
int tt_message_opnum(Tt_message m);

DESCRIPTION

The tt_message_opnum() function retrieves the operation number attribute from the specified message.

The m argument is the opaque handle for the message involved in this operation. 

RETURN VALUE

Upon successful completion, the tt_message_opnum() function returns the number of the operation involved in this message. The application can use tt_int_error(3) to extract one of the following Tt_status values from the returned integer:

TT_OK
The operation completed successfully.

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.

SEE ALSO

tt_c(5), tt_int_error(3). 

ToolTalk 1.3  —  Last change: 1 March 1996