Status XpQueryVersion
(
display,
major_version_return,
minor_version_return
)
Display *_d_i_s_p_l_a_y;
short *_m_a_j_o_r___v_e_r_s_i_o_n___r_e_t_u_r_n;
short *_m_i_n_o_r___v_e_r_s_i_o_n___r_e_t_u_r_n;
XpQueryVersion determines if the X Print Service Extension is present. A non-zero Status is returned if the extension is supported, otherwise a zero Status is returned. If the extension is supported, the major and minor version numbers are returned to indicate the level of X Print Service Extension support.
The X Print Service Extension is initialized on the first call to any X Print Service function; there is no need to explicitly initialize the X Print Service Extension.