that applications use Tk procedures like TTTTkkkk____RRRReeeessssiiiizzzzeeeeWWWWiiiinnnnddddoooowwww instead of X
procedures like XXXXRRRReeeessssiiiizzzzeeeeWWWWiiiinnnnddddoooowwww, so that Tk can keep its data structures
up-to-date.
TTTTkkkk____IIIIssssMMMMaaaappppppppeeeedddd returns a non-zero value if _t_k_w_i_n is mapped and zero if _t_k_w_i_n
isn't mapped.
TTTTkkkk____IIIIssssTTTTooooppppLLLLeeeevvvveeeellll returns a non-zero value if _t_k_w_i_n is a top-level window
(its X parent is the root window of the screen) and zero if _t_k_w_i_n isn't a
top-level window.
TTTTkkkk____RRRReeeeqqqqWWWWiiiiddddtttthhhh and TTTTkkkk____RRRReeeeqqqqHHHHeeeeiiiigggghhhhtttt return information about the window's
requested size. These values correspond to the last call to
TTTTkkkk____GGGGeeeeoooommmmeeeettttrrrryyyyRRRReeeeqqqquuuueeeesssstttt for _t_k_w_i_n.
TTTTkkkk____IIIInnnntttteeeerrrrnnnnaaaallllBBBBoooorrrrddddeeeerrrrWWWWiiiiddddtttthhhh returns the width of internal border that has been
requested for _t_k_w_i_n, or 0 if no internal border was requested. The
return value is simply the last value passed to TTTTkkkk____SSSSeeeettttIIIInnnntttteeeerrrrnnnnaaaallllBBBBoooorrrrddddeeeerrrr for
_t_k_w_i_n.
TTTTkkkk____VVVViiiissssuuuuaaaallll, TTTTkkkk____DDDDeeeepppptttthhhh, and TTTTkkkk____CCCCoooolllloooorrrrmmmmaaaapppp return information about the visual
characteristics of a window. TTTTkkkk____VVVViiiissssuuuuaaaallll returns the visual type for the
window, TTTTkkkk____DDDDeeeepppptttthhhh returns the number of bits per pixel, and TTTTkkkk____CCCCoooolllloooorrrrmmmmaaaapppp
returns the current colormap for the window. The visual characteristics
are normally set from the defaults for the window's screen, but they may
be overridden by calling TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll.