No arguments accepted.
Description:
This procedure returns the status of the right or left shift keys
as a string.
Return Value:
If either the right or left shift keys is depressed when this
call is executed, it returns a string containing the character
"1."
Otherwise, the character "0"
is returned. The shift status may not be correct if event processing
is frozen due to a "grab."
Exceptions:
None.
Example:
# If the shift is depressed, add to a set of previously # selected nodes those nodes having the name "mynode." # If the shift is not depressed, the previously selected # nodes are deselected. rcl_select_name mynode [rcl_isshifted]