[Main]
Name=cmd_pton
Type=Function
Subtype=ROM Call
Header Files=bascmd.h
Definition=void cmd_pton (CESI xValOrList, CESI yValOrList);
MinAMS=1.01
See Also=bascmd.h/cmd_ptoff, bascmd.h/cmd_ptchg, bascmd.h/cmd_pxlon, bascmd.h/cmd_line, bascmd.h/cmd_circle, graph.h/DrawPix

[ROM Call]
Index=$374

[Description]
Executes TI-Basic 'PtOn' command.

[Explanation]
cmd_pton displays the Graph Screen and turns on the screen pixel nearest to
the window coordinates (x,y) which are relative to the current window
settings (you can change them using the "Window Editor" application, or
directly by storing values in system variables like "xmin", using the
<A HREF="$$LINK(vat.h/VarStore)">VarStore</A> function).
The parameters <I>xValOrList</I> and <I>yValOrList</I> should either point
to integer or floating point items on the expression stack, or to lists of 
integer or floating
point items which contain x and y coordinates respectively (both lists must
have an equal number of elements). In the second case, a set of corresponding
pixels will be turned on, instead of just one pixel.
<BR><BR>
See also <A HREF="$$LINK(bascmd.h/cmd_pxlon)">cmd_pxlon</A>, which uses pixel
coordinates instead of window relative ones, and
<A HREF="$$LINK(graph.h/DrawPix)">DrawPix</A> for much faster low-level pixel
drawing (independently of the Graph Screen).

[References]
Out=estack.h/GetValue, estack.h/next_expression_index, graphing.h/gr_active, unknown.h/ForceFloat, unknown.h/GraphActivate, unknown.h/XCvtFtoP, unknown.h/YCvtFtoP, wingraph.h/WinAttr, wingraph.h/WinDupStat, wingraph.h/WinPixSet, unknown.h/_bcd_math
Out_EV_eventLoop=1
