[rust] update example #1699

rust/examples/issue-1699.rs

@@ -3,11 +3,11 @@
 
 use libnotcurses_sys::*;
 
-const W: u32 = 16;
-const H: u32 = 8;
+const W: u32 = 32;
+const H: u32 = 32;
 
 fn main() -> NcResult<()> {
-    let nc = Notcurses::without_altscreen()?;
+    let nc = Notcurses::new()?;
 
     println!("pixel support: {:?}", nc.check_pixel_support());
 
@@ -21,19 +21,16 @@ fn main() -> NcResult<()> {
         buffer.push(255);
     }
 
-    // BUG: when using from_bgra() it will draw vertical stripes 
     let vframe1 = NcVisual::from_bgra(&buffer, H, W * 4, W)?;
-    // from_rgba() does work well!
     // let vframe1 = NcVisual::from_rgba(&buffer, H, W * 4, W)?;
 
-    let voptions = NcVisualOptions::without_plane(0, 0, 0, 0, H, W, NCBLIT_1x1, 0, 0);
-
-    // BUG: nothing gets drawn when using NCBLIT_PIXEL
-    // let voptions = NcVisualOptions::without_plane(0, 0, 0, 0, H, W, NCBLIT_PIXEL, 0, 0);
+    // let voptions = NcVisualOptions::without_plane(0, 0, 0, 0, H, W, NCBLIT_1x1, 0, 0);
+    let voptions = NcVisualOptions::without_plane(0, 0, 0, 0, H, W, NCBLIT_PIXEL, 0, 0);
 
     vframe1.render(nc, &voptions)?;
 
     nc.render()?;
+    sleep![2];
     vframe1.destroy();
     nc.stop()?;
     Ok(())