termkey_start, termkey_stop, termkey_is_started \- enable or disable terminal operations
.SHSYNOPSIS
.nf
.B#include<termkey.h>
.sp
.BI"int termkey_start(TermKey *"tk);
.BI"int termkey_stop(TermKey *"tk);
.sp
.BI"int termkey_is_started(TermKey *"tk);
.fi
.sp
Link with \fI\-ltermkey\fP.
.SHDESCRIPTION
\fBtermkey_start\fP() enables the terminal IO operations of the given \fBtermkey\fP(7) instance, including sending a terminal control sequence and setting the \fBtermios\fP(3) modes required.
\fBtermkey_stop\fP() disables terminal IO operations, by reversing the steps taken by \fBtermkey_start\fP(). A newly-constructed \fBtermkey\fP instance will have terminal IO enabled already.
\fBtermkey_is_started\fP() enquires whether terminal IO is currently enabled.
.SH"RETURN VALUE"
If successful, \fBtermkey_start\fP() and \fBtermkey_stop\fP() return a true value. On failure, zero is returned with \fIerrno\fP set to indicate the failure. \fBtermkey_is_started\fP() returns true or false to indicate whether terminal IO is currently enabled.
