Visual *_v_i_s_u_a_l (in) New visual type to use for _t_k_w_i_n.
int _d_e_p_t_h (in) Number of bits per pixel desired for
_t_k_w_i_n.
Colormap _c_o_l_o_r_m_a_p (in) New colormap for _t_k_w_i_n, which must
be compatible with _v_i_s_u_a_l and _d_e_p_t_h.
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
When Tk creates a new window it assigns it the default visual
characteristics (visual, depth, and colormap) for its screen.
TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll may be called to change them. TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll must
be called before the window has actually been created in X (e.g. before
TTTTkkkk____MMMMaaaappppWWWWiiiinnnnddddoooowwww or TTTTkkkk____MMMMaaaakkkkeeeeWWWWiiiinnnnddddoooowwwwEEEExxxxiiiisssstttt has been invoked for the window). The
safest thing is to call TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll immediately after calling
TTTTkkkk____CCCCrrrreeeeaaaatttteeeeWWWWiiiinnnnddddoooowwww. If _t_k_w_i_n has already been created before
TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll is called then it returns 0 and doesn't make any
changes; otherwise it returns 1 to signify that the operation completed
successfully.
Note: TTTTkkkk____SSSSeeeettttWWWWiiiinnnnddddoooowwwwVVVViiiissssuuuuaaaallll should not be called if you just want to change
a window's colormap without changing its visual or depth; call