Function lvgl::widgets::img::buf_set_px_color

pub fn buf_set_px_color(
    dsc: *mut lv_img_dsc_t, 
    x: lv_coord_t, 
    y: lv_coord_t, 
    c: lv_color_t
) -> MynewtResult<()>

Set the color of a pixel of an image. The alpha channel won't be affected.

• dsc: pointer to an image descriptor
• x: x coordinate of the point to set
• y: x coordinate of the point to set
• c: color of the point
• safe: true: check out of bounds