| FLTK 1.3.11
    | 
Color handling. More...
#include "Fl_XColor.H"#include <FL/Fl.H>#include <FL/x.H>#include <FL/fl_draw.H>#include "fl_cmap.h"| Macros | |
| #define | fl_overlay 0 | 
| HAVE_OVERLAY determines whether fl_overlay is variable or defined as 0. | |
| Functions | |
| Fl_Color | fl_color_average (Fl_Color color1, Fl_Color color2, float weight) | 
| Returns the weighted average color between the two given colors. | |
| Fl_Color | fl_contrast (Fl_Color fg, Fl_Color bg) | 
| Returns a color that contrasts with the background color. | |
| Fl_Color | fl_inactive (Fl_Color c) | 
| Returns the inactive, dimmed version of the given color. | |
| ulong | fl_xpixel (Fl_Color i) | 
| Returns the X pixel number used to draw the given FLTK color index. | |
| ulong | fl_xpixel (uchar r, uchar g, uchar b) | 
| Returns the X pixel number used to draw the given rgb color. | |
| Variables | |
| uchar | fl_bluemask | 
| color mask used in current color map handling | |
| int | fl_blueshift | 
| color shift used in current color map handling | |
| int | fl_extrashift | 
| color shift used in current color map handling | |
| uchar | fl_greenmask | 
| color mask used in current color map handling | |
| int | fl_greenshift | 
| color shift used in current color map handling | |
| uchar | fl_redmask | 
| color mask used in current color map handling | |
| int | fl_redshift | 
| color shift used in current color map handling | |
| Fl_XColor | fl_xmap [1][256] | 
| HAVE_OVERLAY determines whether fl_xmap is one or two planes. | |
Color handling.