Get the current color in RGB-coding.
get_rgb returns the output colors or grayvalues, respectively, for the output window. They are defined by the three color components red, green and blue.
get_rgb is like get_pixel but returns the entries of the color lookup table rather than the indices. The values returned by get_rgb can be set with set_rgb.
|
WindowHandle (input_control) |
window -> integer |
| Window_id. | |
|
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 handling is raised.
get_rgb is reentrant and processed without parallelization.
set_rgb, disp_region, disp_image
Foundation
