Question

How to create a bitmap at run time in C# Windows Forms Application

Answer 1

using System;
using System.Drawing;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Bitmap bitmap = new Bitmap(50, 50);

            for (int i = 0; i < bitmap.Height; i++)
                for (int j = 0; j < bitmap.Width; j++)
                    bitmap.SetPixel(i, j, Color.Green);

            for (int i = 0; i < bitmap.Height; i++)
                bitmap.SetPixel(i, i, Color.Red);

            pictureBox1.Image = bitmap;
        }
    }
}

 

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