TEIdle
TEIdle Forces the insertion point caret to blink
#include <TextEdit.h> TextEdit
void TEIdle(hTE );
TEHandle hTE ; edit record handle
TEIdle should be called often - while the edit record is active - to ensure
that the insertion point character (the caret) blinks regularly.
hTE is a handle obtained via TENew (old style TextEdit record) or
TEStylNew (new style TextEdit record). It leads to a
variable-length TERec structure and identifies an active edit record.

Notes: This is typically called once each time through the main event
loop, while the specified edit record is active. If you fail to call this
function often enough, the caret will blink erratically.
It will not cause a problem if you call this too often. Once the maximum
blink rate is reached, the caret will not blink any faster.
The blink rate is set by the user via the Control Panel DA.