Tao.FreeGlut SDK Documentation

Glut.glutGetColor Method 

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.

[Visual Basic]
Public Shared Function glutGetColor( _
   ByVal cell As Integer, _
   ByVal component As Integer _
) As Single
[C#]
public static float glutGetColor(
   int cell,
   int component
);

Parameters

cell
Color cell index (starting at zero).
component
One of GLUT_RED, GLUT_GREEN, or GLUT_BLUE.

Return Value

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 Glut.glutGet(Glut.GLUT_WINDOW_COLORMAP_SIZE), that is if the color index is transparent or outside the valid range of color indices.

Remarks

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.

See Also

Glut Class | Tao.FreeGlut Namespace | glutCopyColormap | glutGet | glutSetColor