NAME

send − send a value down a Tk channel

SYNOPSIS

send chan string

DESCRIPTION

­Send is the gateway from the Tk world into the Limbo world.  It sends ­string down chan, which should previously have been named with a call to ­namechan (see tk(2)). Tk channels are non blocking, so the call will return immediately, whether the message has been sent or not. If too many messages have been queued on the chan, then the message will be discarded, and a warning printed on the console. ­String is not subject to interpretation by the usual Tk quoting rules. 

BUGS

­String is not subject to interpretation by the usual Tk quoting rules.  This means, for example that:

radiobutton .x -text X -variable x -value x
radiobutton .y -text Y -variable y -value y
button .z -text Submit {send chan submit [variable X]}

will not work as expected. Instead, one must interrogate values directly in Limbo. 
 
Queued channels are a hack, and might leave in a future version of Inferno.

Plan 9  —  June 29, 2000