mirror of
https://github.com/dankamongmen/notcurses.git
synced 2024-11-08 01:10:23 +00:00
102 lines
3.1 KiB
Markdown
102 lines
3.1 KiB
Markdown
% notcurses_channels(3)
|
|
% nick black <nickblack@linux.com>
|
|
% v2.2.3
|
|
|
|
# NAME
|
|
|
|
notcurses_channels - operations on notcurses channels
|
|
|
|
# SYNOPSIS
|
|
|
|
**#include <notcurses/notcurses.h>**
|
|
|
|
```c
|
|
#define CHANNELS_RGB_INITIALIZER(fr, fg, fb, br, bg, bb) \
|
|
(((((uint64_t)(fr) << 16u) + ((uint64_t)(fg) << 8u) + (uint64_t)(fb)) << 32ull) + \
|
|
(((br) << 16u) + ((bg) << 8u) + (bb)) + CELL_BGDEFAULT_MASK + CELL_FGDEFAULT_MASK)
|
|
|
|
#define CHANNEL_RGB_INITIALIZER(r, g, b) \
|
|
(((uint32_t)r << 16u) + ((uint32_t)g << 8u) + (b) + CELL_BGDEFAULT_MASK)
|
|
```
|
|
|
|
**uint32_t channel_r(uint32_t ***channel***);**
|
|
|
|
**uint32_t channel_g(uint32_t ***channel***);**
|
|
|
|
**uint32_t channel_b(uint32_t ***channel***);**
|
|
|
|
**uint32_t channel_rgb8(uint32_t ***channel***, uint32_t* restrict ***r***, uint32_t* restrict ***g***, uint32_t* restrict ***b***);**
|
|
|
|
**int channel_set_rgb8(uint32_t* ***channel***, int ***r***, int ***g***, int ***b***);**
|
|
|
|
**int channel_set(uint32_t* ***channel***, uint32_t ***rgb***);**
|
|
|
|
**unsigned channel_palindex(uint32_t ***channel***);**
|
|
|
|
**int channel_set_palindex(uint32_t* ***channel***, int ***idx***);**
|
|
|
|
**uint32_t channel_alpha(uint32_t ***channel***);**
|
|
|
|
**int channel_set_alpha(uint32_t* ***channel***, unsigned ***alpha***);**
|
|
|
|
**bool channel_default_p(uint32_t ***channel***);**
|
|
|
|
**uint32_t channel_set_default(uint32_t* ***channel***);**
|
|
|
|
**unsigned channels_fg_rgb(uint64_t ***channels***);**
|
|
|
|
**unsigned channels_bg_rgb(uint64_t ***channels***);**
|
|
|
|
**int channels_set_fg_rgb(uint64_t* ***channels***, unsigned ***rgb***);**
|
|
|
|
**int channels_set_bg_rgb(uint64_t* ***channels***, unsigned ***rgb***);**
|
|
|
|
**unsigned channels_fg_alpha(uint64_t ***channels***);**
|
|
|
|
**unsigned channels_bg_alpha(uint64_t ***channels***);**
|
|
|
|
**int channels_set_fg_alpha(uint64_t* ***channels***, int ***alpha***);**
|
|
|
|
**int channels_set_bg_alpha(uint64_t* ***channels***, int ***alpha***);**
|
|
|
|
**unsigned channels_fg_palindex(uint64_t ***channels***);**
|
|
|
|
**unsigned channels_bg_palindex(uint64_t ***channels***);**
|
|
|
|
**int channels_set_fg_palindex(uint64_t* ***channels***, int ***idx***);**
|
|
|
|
**int channels_set_bg_palindex(uint64_t* ***channels***, int ***idx***);**
|
|
|
|
**unsigned channels_fg_rgb8(uint64_t ***channels***, unsigned* ***r***, unsigned* ***g***, unsigned* ***b***);**
|
|
|
|
**unsigned channels_bg_rgb8(uint64_t ***channels***, unsigned* ***r***, unsigned* ***g***, unsigned* ***b***);**
|
|
|
|
**int channels_set_fg_rgb8(uint64_t* ***channels***, int ***r***, int ***g***, int ***b***);**
|
|
|
|
**int channels_set_bg_rgb8(uint64_t* ***channels***, int ***r***, int ***g***, int ***b***);**
|
|
|
|
**bool channels_fg_default_p(uint64_t ***channels***);**
|
|
|
|
**bool channels_bg_default_p(uint64_t ***channels***);**
|
|
|
|
**uint64_t channels_set_fg_default(uint64_t* ***channels***);**
|
|
|
|
**uint64_t channels_set_bg_default(uint64_t* ***channels***);**
|
|
|
|
# DESCRIPTION
|
|
|
|
|
|
# RETURN VALUES
|
|
|
|
Functions returning `int` return -1 on failure, or 0 on success. Failure is
|
|
always due to invalid inputs. Functions returning `bool` are predicates, and
|
|
return the requested value. Functions returning `unsigned` forms return the
|
|
input, modified as requested.
|
|
|
|
# SEE ALSO
|
|
|
|
**notcurses(3)**,
|
|
**notcurses_cell(3)**,
|
|
**notcurses_plane(3)**,
|
|
**notcurses_output(3)**
|