plxormod
( | mode, |
status); |
Enter (when is true)
or leave (when mode is false)
xor mode for those drivers
(e.g., the xwin driver) that support it. Enables erasing plots by
drawing twice the same line, symbol, etc. If driver is not capable
of xor operation it returns a
mode of false.
status
mode
(PLBOOL, input)
is true
means enter xor mode and
mode is false
means leave xor mode.
mode
status
(PLBOOL *, output)
Pointer to status. Returned
status of true (false)
means driver is capable (incapable) of xor mode.
mode
Redacted form: plxormod(mode, status)
This function is used in examples 1,20.