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 lightness (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