///
/// If the windowing system supports window opacity, this can be used to fade the
/// window in and out, or to make it semitransparent.
///
/// A value of 1.0 or above is treated as fully opaque, whereas a value of 0.0 or below
/// is treated as fully transparent. Values inbetween represent varying levels of
/// translucency between the two extremes.
///
/// The default value is 1.0.
If the windowing system supports window opacity, this can be used to fade the
window in and out, or to make it semitransparent.

A value of 1.0 or above is treated as fully opaque, whereas a value of 0.0 or below
is treated as fully transparent. Values inbetween represent varying levels of
translucency between the two extremes.

The default value is 1.0.
If the windowing system supports window opacity this can be used to fade the window in and out or to make it semitransparent . A value of 1 . 0 or above is treated as fully opaque whereas a value of 0 . 0 or below is treated as fully transparent . Values inbetween represent varying levels of translucency between the two extremes . The default value is 1 . 0 .
pub fn opacity(&self) -> f32 {
        let (obj_data, funcs) = self.get_window_obj_funcs();
        unsafe {
            let ret_val = ((*funcs).opacity)(obj_data);
            ret_val
        }
    }
pub fn opacity ( & self ) -> f32 { let ( obj_data , funcs ) = self . get_window_obj_funcs ( ) ; unsafe { let ret_val = ( ( * funcs ) . opacity ) ( obj_data ) ; ret_val } }
If the windowing system supports window opacity, this can be used to fade the
window in and out, or to make it semitransparent.
If the windowing system supports window opacity this can be used to fade the window in and out or to make it semitransparent .
&self