Draw a pixel: Difference between revisions
Ada version
(Ada version) |
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Line 7:
::# the color of the pixel must be red (255,0,0)
::# the position of the pixel is x = 100, y = 100
=={{header|Ada}}==
{{libheader|SDLAda}}
<lang Ada>with SDL.Video.Windows.Makers;
with SDL.Video.Renderers.Makers;
with SDL.Events.Events;
procedure Draw_A_Pixel is
Width : constant := 320;
Height : constant := 200;
Window : SDL.Video.Windows.Window;
Renderer : SDL.Video.Renderers.Renderer;
procedure Wait is
use type SDL.Events.Event_Types;
Event : SDL.Events.Events.Events;
begin
loop
while SDL.Events.Events.Poll (Event) loop
if Event.Common.Event_Type = SDL.Events.Quit then
return;
end if;
end loop;
delay 0.100;
end loop;
end Wait;
begin
if not SDL.Initialise (Flags => SDL.Enable_Screen) then
return;
end if;
SDL.Video.Windows.Makers.Create (Win => Window,
Title => "Draw a pixel",
Position => SDL.Natural_Coordinates'(X => 10, Y => 10),
Size => SDL.Positive_Sizes'(Width, Height),
Flags => 0);
SDL.Video.Renderers.Makers.Create (Renderer, Window.Get_Surface);
Renderer.Set_Draw_Colour ((0, 0, 0, 255));
Renderer.Fill (Rectangle => (0, 0, Width, Height));
Renderer.Set_Draw_Colour ((255, 0, 0, 255));
Renderer.Draw (Point => (100, 100));
Window.Update_Surface;
Wait;
Window.Finalize;
SDL.Finalise;
end Draw_A_Pixel;</lang>
=={{header|ARM Assembly}}==
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