]]> ]]> tt_pattern_op_add library call tt_pattern_op_add add a value to the operation field of a pattern #include <Tt/tt_c.h> Tt_status tt_pattern_op_add Tt_pattern p const char *opname The tt_pattern_op_add function adds a value to the operation field of the specified pattern. The p argument is a unique handle for a message pattern. This handle is returned after &cdeman.tt.pattern.create; is called. The opname argument is the name of the operation the process can perform. Upon successful completion, the tt_pattern_op_add function returns the status of the operation as one of the following Tt_status values: TT_OK The operation completed successfully. TT_ERR_NOMP The &cdeman.ttsession; 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. &cdeman.Tt.tt.c.h;, &cdeman.tt.pattern.create;.