XNA Draw pixel on screen

[Xilef]

Can someone write me a quick XNA C# function to render pixels to the screen at any given screen coordinate?
Example:

renderPixel(x, y, color.pink);

The reason I want this is because I have a screen buffer of colours for each pixel on the screen and I can find no way of converting that to a texture2D to use, so I'm looking for a way to do:

 

for (int x =1; x<800; x++)

{

    for (int y =1; y<600; y++)

    {

        renderPixel(x, y, buffer[x, y]);

    }

}

 

 

[Tdata]

 

 

Color[,] Screen = new Color[800,600]

 

Bitmap Bmp = new Bitmap(800, 600);

for (int x = 0; x < 800; x++)

{

   for (int y = 0; y < 600; y++)

   {

      Bmp.SetPixel(x, y, Screen[x, y]);

   }

}

 

By a screen buffer I assume that you mean that you have an array of colors.

 

[game_guy]

The best way is to import several different 1x1 graphics and draw them that way. Or you could even import a 1x1 White pixel. Then when you could try and do something like this.

Texture2D pixel;

private override LoadContent()

{

    pixel = Content.Load<Texture2D>("white_pixel");

}

private override Draw(GameTime gameTime)

{

    spriteBatch.Draw(pixel, Vector2 position, Color.Blue);

}

Not sure if adding the color blend will do anything but its a thought.