Rgb get
Syntax
INT rgb_get ( <INT pixel_color > , <POINTER red> , <POINTER green> , <POINTER blue> , [<INT depth>] )
Description
Get access to the memory sections of the color components, these can be accessed with the Offset operator.
The previous get_rgb() is deprecated.
Parameters
| INT pixel_color | - The color value of a pixel . |
| POINTER red | - Pointer to the level of red in the desired color from 0 to 255. |
| POINTER green | - Pointer to the level of green in the desired color from 0 to 255. |
| POINTER blue | - Pointer to the level of blue in the desired color from 0 to 255. |
| INT depth | - Depth (optional paramter that may be omitted, only in 16 and 32 bit mode). When this parameter is used, the function returns the correct color code for the indicated depth. |
Returns
1 : This function always returns a 1.
Notes
The color value's have to be obtained with the Offset operator, and the pixel color value can be obtained with Map_get_pixel().
Example
IMPORT "mod_say";
IMPORT "mod_debug";
IMPORT "mod_key";
IMPORT "mod_map";
IMPORT "mod_video";
IMPORT "mod_wm";
IMPORT "mod_draw";
IMPORT "mod_screen";
IMPORT "mod_mem";
IMPORT "mod_text";
GLOBAL
int map_id; // id code of the map to load
int status; // status for debugging
// color components
int my_r;
int my_g;
int my_b;
PROCESS main();
BEGIN
set_mode(320,200,32);
// load the map
map_id=load_map("3COCHE.MAP");
// first, we're going to check the r,g,b values of 5 pixels, with the optional
// depth parameter.
status=get_rgb(map_get_pixel(0,map_id,0,0), &my_r, &my_g, &my_b ,32);
say("my_r: "+my_r+" my_g: "+my_g+" my_b: "+my_b);
say("status: "+status);
status=get_rgb(map_get_pixel(0,map_id,4,0), &my_r, &my_g, &my_b ,32);
say("my_r: "+my_r+" my_g: "+my_g+" my_b: "+my_b);
say("status: "+status);
status=get_rgb(map_get_pixel(0,map_id,50,1), &my_r, &my_g, &my_b ,32);
say("my_r: "+my_r+" my_g: "+my_g+" my_b: "+my_b);
say("status: "+status);
status=get_rgb(map_get_pixel(0,map_id,13,24), &my_r, &my_g, &my_b, 32);
say("my_r: "+my_r+" my_g: "+my_g+" my_b: "+my_b);
say("status: "+status);
status=get_rgb(map_get_pixel(0,map_id,84,40), &my_r, &my_g, &my_b, 32);
say("my_r: "+my_r+" my_g: "+my_g+" my_b: "+my_b);
say("status: "+status);
// second, we use the simpler way, that is valid for a bit maps
say("");
say("8 bit color codes");
say(map_get_pixel(0,map_id,0,0));
say(map_get_pixel(0,map_id,4,0));
say(map_get_pixel(0,map_id,50,1));
say(map_get_pixel(0,map_id,13,24));
say(map_get_pixel(0,map_id,84,40));
LOOP
IF (key(_esc))
BREAK;
END
FRAME;
END
END
See also
The articles about the functions, Rgb() and Rgba() for more information, since this function is related to some extend.
