get_rgb
— Get the current color in RGB-coding.
get_rgb( : : WindowHandle : Red, Green, Blue)
get_rgb
returns the output colors or gray values, respectively, for
the output window. They are defined by the three color
components red, green and blue.
The values returned by get_rgb
can be set with
set_rgb
.
WindowHandle
(input_control) window →
(handle)
Window handle.
Red
(output_control) integer-array →
(integer)
The current color's red value.
Green
(output_control) integer-array →
(integer)
The current color's green value.
Blue
(output_control) integer-array →
(integer)
The current color's blue value.
get_rgb
returns 2 (H_MSG_TRUE) if the window is valid.
Otherwise an exception is raised.
set_rgb
,
disp_region
,
disp_image
Foundation