Function libnotcurses_sys::ncplane_double_box

pub fn ncplane_double_box(
    plane: &mut NcPlane, 
    stylemask: NcStyle, 
    channels: NcChannels, 
    y_stop: NcDim, 
    x_stop: NcDim, 
    boxmask: NcBoxMask
) -> NcIntResult

Method: NcPlane.double_box().