NAME
XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQueryMaxLC, XcmsCIELuvQueryMinL - obtain the CIE L*u*v* coordinates
SYNTAX
Status XcmsCIELuvQueryMaxC(XcmsCCC _c_c_c, XcmsFloat
_h_u_e___a_n_g_l_e, XcmsFloat _L___s_t_a_r, XcmsColor *_c_o_l_o_r___r_e_t_u_r_n);
Status XcmsCIELuvQueryMaxL(XcmsCCC _c_c_c, XcmsFloat
_h_u_e___a_n_g_l_e, XcmsFloat _c_h_r_o_m_a, XcmsColor *_c_o_l_o_r___r_e_t_u_r_n);
Status XcmsCIELuvQueryMaxLC(XcmsCCC _c_c_c, XcmsFloat
_h_u_e___a_n_g_l_e, XcmsColor *_c_o_l_o_r___r_e_t_u_r_n);
Status XcmsCIELuvQueryMinL(XcmsCCC _c_c_c, XcmsFloat
_h_u_e___a_n_g_l_e, XcmsFloat _c_h_r_o_m_a, XcmsColor *_c_o_l_o_r___r_e_t_u_r_n);
ARGUMENTS
-
_c_c_c
Specifies the CCC.
-
Note that the CCC's Client White Point and White Point Adjustment procedures
are ignored.
-
_c_h_r_o_m_a
Specifies the chroma at which to find maximum lightness (MaxL) or minimum lightness (MinL).
-
or minimum lightness (MinL)
or hue angle (MaxLC)
-
_c_o_l_o_r___r_e_t_u_r_n
Returns the CIE L*u*v* coordinates of maximum chroma (MaxC and MaxLC), maximum lightnes (MaxL),
-
displayable by the screen for the given hue angle and lightness (MaxC), hue angle and chroma (MaxL and MinL),.
The white point associated with the returned
color specification is the Screen White Point.
The value returned in the pixel member is undefined.
or minimum lightness (MinL)
-
_h_u_e___a_n_g_l_e
Specifies the hue angle (in degrees) at which to find maximum chroma (MaxC and MaxLC), maximum lightness (MaxL),.
-
-
_L___s_t_a_r
Specifies the lightness (L*) at which to find maximum chroma (MaxC) or maximum lightness (MaxL).
-
DESCRIPTION
The
_X_c_m_s_C_I_E_L_u_v_Q_u_e_r_y_M_a_x_C
function, given a hue angle and lightness,
finds the point of maximum chroma displayable by the screen.
It returns this point in CIE L*u*v* coordinates.
The
_X_c_m_s_C_I_E_L_u_v_Q_u_e_r_y_M_a_x_L
function, given a hue angle and chroma,
finds the point in CIE L*u*v* color space of maximum
lightness (L*) displayable by the screen.
It returns this point in CIE L*u*v* coordinates.
An
_X_c_m_s_F_a_i_l_u_r_e
return value usually indicates that the given chroma
is beyond maximum for the given hue angle.
The
_X_c_m_s_C_I_E_L_u_v_Q_u_e_r_y_M_a_x_L_C
function, given a hue angle,
finds the point of maximum chroma displayable by the screen.
It returns this point in CIE L*u*v* coordinates.
The
_X_c_m_s_C_I_E_L_u_v_Q_u_e_r_y_M_i_n_L
function, given a hue angle and chroma,
finds the point of minimum lightness (L*) displayable by the screen.
It returns this point in CIE L*u*v* coordinates.
An
_X_c_m_s_F_a_i_l_u_r_e
return value usually indicates that the given chroma
is beyond maximum for the given hue angle.
SEE ALSO
XcmsCIELabQueryMaxC(3X11),
XcmsTekHVCQueryMaxC(3X11),
XcmsQueryBlack(3X11)
_X_l_i_b _- _C _L_a_n_g_u_a_g_e _X _I_n_t_e_r_f_a_c_e