【C# GDI+绘制图片问题！！！！！！】

江西省遂川县常驻深圳大使 2012-03-25 11:27:30

我用Graphics 绘制图片，刚开始为什么绘制不出来呢，就是没有显示，当循环多次后台显示图片。
求解答，完整代码如下：

using System;

using System.Windows.Forms;

using System.Drawing;

using System.Threading;



namespace 多线程带参数

{

    class Form1 : Form

    {

        private PictureBox pic;

        Graphics g;

        private int Bit_X,Loca;

        Bitmap bit;



        public Form1()

        {

            Initialize();

        

        }



        private void Initialize()

        {

            pic = new PictureBox();

           pic.Size = new Size(32, 48);

            pic.Location = new Point(0,0);

       

            g = pic.CreateGraphics();



            this.SuspendLayout();

            this.Controls.Add(pic);



            this.Size = new Size(500, 280);

            this.StartPosition = FormStartPosition.CenterScreen;

            this.ResumeLayout();





            bit = new Bitmap("MAN.png");

            Loca=Bit_X = 0;

            Thread thread1 = new Thread(new ThreadStart(ManMove));

            thread1.IsBackground = true;

            thread1.Start();

            CheckForIllegalCrossThreadCalls = false;

        }



        private void ManMove()

        {

            while (pic.Location.X < 500 - 32)

            {

                //bit.RotateFlip(RotateFlipType.Rotate90FlipY);

                Rectangle rect = new Rectangle(Bit_X, 96, 32, 48);

                Rectangle rectLoca=new Rectangle(0, 0, 32, 48);

                g.DrawImage(bit, rectLoca, rect, GraphicsUnit.Pixel);



                Thread.Sleep(5000);

             //   Bit_X += 32;

                if (Bit_X >= 192)

                    Bit_X = 0;

             //   g.Clear(pic.BackColor);

           //     pic.Location =new Point(Loca+=5,0);

            }

            MessageBox.Show("Exit");

        }

    }

}