Manpage of glutGetColor
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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
GLfloat glutGetColor(int cell, int component);
Color cell index (starting at zero).
One of GLUT_RED, GLUT_GREEN, or GLUT_BLUE.
glutGetColor retrieves a red, green, or blue component for a given
color index colormap entry for the current window'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. glutGetColor 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
glutGet(GLUT_WINDOW_COLORMAP_SIZE), that is if the color index
is transparent or outside the valid range of color indices.
glutGet, glutSetColor, glutCopyColormap
Mark J. Kilgard (firstname.lastname@example.org)
- SEE ALSO
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Time: 13:00:47 GMT, March 25, 2001