Appendix B: Global Variables — Graphing
1241
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
gr_flags
Declaration:
GR_FLAGS
gr_flags
Category:
Graphing
Description:
Global flags used by the Graph application. Each flag is a separate struct
member. The contents of these flags should not be changed by an app or
ASM but may be accessed for testing the value. The names of the flags
and their purposes are:
BOOL gr_in_progress A graph is currently being plotted. Among
other things, this flag alerts
VarRecall
to set
the graph reference flag for every user
variable accessed until this flag is reset to
enable the Smart Graph feature to work.
BOOL gr_zoom_fit ZoomFit is being executed. Every graph point
is computed to determine the min and max
Window variable values, but while this flag is
set, nothing is plotted.
BOOL gr_cpt_seq_flag A graph sequence mode function (u1 – u99)
is being executed.
BOOL stat_in_progress A statistics calculation is currently being
performed. Among other things, this flag
alerts
VarRecall
to set the stat reference flag
for every user variable accessed until this flag
is reset to enable the calculator to determine
when the statistics results are no longer valid.
BOOL gr_trace_seq A sequence function is being traced.
BOOL de_init_conds A differential equation is being plotted with
initial conditions selected interactively using
the graph cursor.
BOOL gr_cpt_de_flag A graph differential equation mode function
(y1' – y99') is being executed.
BOOL new_eqn The Numeric Solver system variable eqn has
changed. This alerts the solver graph to
regraph.
BOOL de_error An error has occurred while computing a
graph differential equation mode function.
Inputs:
None
Outputs:
None
(continued)
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