msgget
This retrieves message data from the region that is specified by
offset
and length
.
msgget ?-cvtnull char? msgId ?offset? ?length?
Nulls in the retrieved data are converted to char
if you use -cvtnull
. If the
message contains nulls and you do not use the -cvtnull
option, then you cannot access message data past the Tcl
message's first null.
In addition, if you store the string returned in this non-conversion case, then only the Tcl-visible string portion is stored.
This command returns the retrieved, converted data.