[C#]GIF 프레임 단위로 보기

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace WinApp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFile = new OpenFileDialog();
            openFile.Filter = @"GIF|*.gif";
            openFile.Multiselect = false;
            openFile.ShowDialog();
 
            if (openFile.FileName.Length > 0)
            {
                Image SelectImage = Image.FromFile(openFile.FileName);
                int intFrameCnt = SelectImage.GetFrameCount(FrameDimension.Time);
 
                this.listBox1.Items.Clear();
                this.listBox1.Tag = SelectImage;
 
                for (int i = 0; i < intFrameCnt; i++)
                {
                    this.listBox1.Items.Add(i.ToString());                    
                }
            }
        }
 
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.listBox1.Tag == null) return;
            var SelectImage = this.listBox1.Tag as Image;
 
            int ii = SelectImage.SelectActiveFrame(FrameDimension.Time, listBox1.SelectedIndex);
            pictureBox1.Image = SelectImage;
            pictureBox1.Enabled = false;
        }
    }
}
 

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