Creating GUI gives an error with COSMOS. #3035
Description
I was creating a simple COSMOS 2022 GUI with C# .
COSMOS version : 2022 (latest which is available on the COSMOS website).
Visual Studio version : 2022 (latest).
After running the code it says "NULL reference exception occurred. halting Now"
Here's the screen shot
Here is my Code in Before Run and Run function :
using System;
using System.Collections.Generic;
using System.Text;
using Sys = Cosmos.System;
using CosmosKernel.Commands;
using Cosmos.System.FileSystem;
using Cosmos.System.Graphics;
using Cosmos.System.Graphics.Fonts;
using Cosmos.System.Graphics.Extensions;
using Cosmos.System;
using System.Drawing;
namespace CosmosKernel
{
public class Kernel : Sys.Kernel
{
private Canvas canvas;
private Pen pen;
private List<Tuple<Sys.Graphics.Point, Color>> savedPixels;
private MouseState prevMouseState;
private UInt32 px, py;
void DelayInMS(int ms) // Stops the code for milliseconds and then resumes it (Basically It's delay)
{
for (int i = 0; i < ms * 100000; i++)
{
;
;
;
;
;
}
}
protected override void BeforeRun()
{
System.Console.Clear();
System.Console.WriteLine("\n\n");
System.Console.ForegroundColor = System.ConsoleColor.Green;
System.Console.WriteLine("VFS :OK");
System.Console.WriteLine("Command manager :OK");
System.Console.WriteLine("Cosmos boot :OK");
DelayInMS(10000);
System.Console.ForegroundColor = System.ConsoleColor.White;
System.Console.Clear();
System.Console.WriteLine("Booted successfully you can write any command. \n");
}
protected override void Run()
{
Canvas canvas = FullScreenCanvas.GetCurrentFullScreenCanvas();
canvas.Clear(Color.Black);
System.Console.WriteLine(response);
}
}
}
The compiler does not give me ant error while compiling.
The only thing I know that it runs totally fine until it executes this line :
Canvas canvas = FullScreenCanvas.GetCurrentFullScreenCanvas();
The DelayInMS() function is already declared and has no problems.