# ncurses_color_content

(PHP 4 >= 4.3.0, PHP 5 < 5.3.0, PECL ncurses >= 1.0.0)

ncurses_color_content — Retrieves RGB components of a color

### 说明

ncurses_color_content ( int `$color` , int `&$r` , int `&$g` , int `&$b` ) : int

Retrieves the red, green, and blue components for the given color definition. Terminal color capabilities must be initialized with ncurses_start_color() prior to calling this function.

### 参数

`color`

  The number of the color to retrieve information for. May be one of the pre-defined color constants.

`r`

  A reference to which to return the red component of the color. The value returned to the reference will be between 0 and 1000.

`g`

  A reference to which to return the green component of the color. The value returned to the reference will be between 0 and 1000.

`b`

  A reference to which to return the blue component of the color. The value returned to the reference will be between 0 and 1000.

### 返回值

Returns -1 if the function was successful, and 0 if ncurses or terminal color capabilities have not been initialized.

### 参见

- ncurses_init_color() - Define a terminal color
- ncurses_start_color() - Initializes color functionality