NAME

tt_pattern_category − return the category value of a pattern

SYNOPSIS

#include <Tt/tt_c.h>
Tt_category tt_pattern_category(Tt_pattern p);

DESCRIPTION

The tt_pattern_category() function returns the category value of the specified pattern.

The p argument is the opaque handle for a message pattern. 

RETURN VALUE

Upon successful completion, the tt_pattern_category() function returns a value that indicates whether the receiving process will observe or handle messages. The tt_pattern_category() function returns one of the following Tt_status values:

TT_OBSERVE
The receiving process will observe messages.

TT_HANDLE
The receiving process will handle messages.

The application can use tt_int_error(3) to extract one of the following Tt_status values from the Tt_category integer return value:

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_pattern_category_set(3), tt_int_error(3). 

ToolTalk 1.3  —  Last change: 1 March 1996