C# Winform中繪制動畫的方法(2)

使用如下方法調用：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Text;
using System.Windows.Forms;
namespace GifTest
{
public partial class Form1 : Form
{
AnimateImage image;
public Form1()
{
InitializeComponent();
image = new AnimateImage(Image.FromFile(@"C:\Documents and Settings\Administrator\My Documents\My Pictures\未命名.gif"));
image.OnFrameChanged += new EventHandler<EventArgs>(image_OnFrameChanged);
SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);
}
void image_OnFrameChanged(object sender, EventArgs e)
{
Invalidate();
}
private void Form1_Load(object sender, EventArgs e)
{
image.Play();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
lock (image.Image)
{
e.Graphics.DrawImage(image.Image, new Point(0, 0));
}
}
private void button1_Click(object sender, EventArgs e)
{
if (button1.Text.Equals("Stop"))
{
image.Stop();
button1.Text = "Play";
}
else
{
image.Play();
button1.Text = "Stop";
}
Invalidate();
}
private void button2_Click(object sender, EventArgs e)
{
image.Reset();
button1.Text = "Play";
Invalidate();
}
}
}

有點不完美的地方，在Paint事件中，必須鎖定Image，否則很容易出現“對象當前正在其他地方使用。”的異常，因為AnimateImage也在使用這個Image對象。如果你有更好的解決辦法，歡迎給我留言~~