glutGetColor(3GLUT) GLUT glutGetColor(3GLUT)

NAME
glutGetColor - retrieves a red, green, or blue component
for a given color index colormap entry for the layer in
use’s logical colormap for the current window.

SYNTAX
GLfloat glutGetColor(int cell, int component);

ARGUMENTS
cell Color cell index (starting at zero).

component One of GLUT_RED, GLUT_GREEN, or GLUT_BLUE.

DESCRIPTION
glutGetColor retrieves a red, green, or blue component for
a given color index colormap entry for the current win-
dow’s logical colormap. The current window should be a
color index window. cell should be zero or greater and
less than the total number of colormap entries for the
window. For valid color indices, the value returned is a
floating point value between 0.0 and 1.0 inclusive. glut-
GetColor will return -1.0 if the color index specified is
an overlay’s transparent index, less than zero, or greater
or equal to the value returned by glut-
Get(GLUT_WINDOW_COLORMAP_SIZE), that is if the color index
is transparent or outside the valid range of color
indices.

SEE ALSO
glutGet, glutSetColor, glutCopyColormap

AUTHOR
Mark J. Kilgard (mjk@sgi.com)

GLUT 3.2 1