c#之利用API函數實現(xiàn)動畫窗體的方法詳解

更新時間：2013年06月08日 15:36:44 作者：

本篇文章是對c#中利用API函數實現(xiàn)動畫窗體的方法進行了詳細的分析介紹，需要的朋友參考下

這里主要利用API函數Animate Window實現(xiàn)窗體左右，上下，擴展，淡入滑動或滾動動畫效果，步驟如下：
1.新建窗體，使用2個GroupBox控件。
2.在控件1中添加2個RadioButton控件，并設置Text分別為“滾動窗體”，“滑動窗體”，并使前者Checked設置為True。
3.在空間2中添加6個按鈕，Text分別為“自左向右動畫”，“自右向左動畫”，“自上向下動畫”，“自下向上動畫”，“向外擴展動畫”，“淡入動畫窗體”。
4.添加一新的Window窗體，設置Text為“動畫窗體”。設置其“BackgroundImage”屬性，導入一張要加載的圖像，然后設置其“BackgroundImageLayout”屬性為“Stretch”。
5.各按鈕事件主要代碼如下：

復制代碼代碼如下:

private void button1_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            if (radioButton1.Checked == true)
            {
                myf.Text = "自左向右滾動窗體動畫效果";
            }
            else
            {
                myf.Text = "自左向右滑動窗體動畫效果";
            }
            myf.Show();
        }
        private void button4_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            if (radioButton1.Checked == true)
            {
                myf.Text = "自右向左滾動窗體動畫效果";
            }
            else
            {
                myf.Text = "自右向左滑動窗體動畫效果";
            }
            myf.Show();
        }
        private void button2_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            if (radioButton1.Checked == true)
            {
                myf.Text = "自上向下滾動窗體動畫效果";
            }
            else
            {
                myf.Text = "自上向下滑動窗體動畫效果";
            }
            myf.Show();
        }
        private void button5_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            if (radioButton1.Checked == true)
            {
                myf.Text = "自下向上滾動窗體動畫效果";
            }
            else
            {
                myf.Text = "自下向上滑動窗體動畫效果";
            }
            myf.Show();
        }
        private void button3_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            myf.Text = "向外擴展窗體動畫效果";
            myf.Show();
        }
        private void button6_Click(object sender, EventArgs e)
        {
            Form2 myf = new Form2();
            myf.Text = "淡入窗體動畫效果";
            myf.Show();
        }

6.雙擊Form2窗體，進入代碼視圖。首先定義公用變量，具體代碼如下：

復制代碼代碼如下:

        public const Int32 AW_HOR_POSITIVE = 0X00000001;
        public const Int32 AW_HOR_NEGATIVE = 0X00000002;
        public const Int32 AW_VER_POSITIVE = 0X00000004;
        public const Int32 AW_VER_NEGATIVE = 0X00000008;
        public const Int32 AW_CENTER = 0X00000010;
        public const Int32 AW_HIDE = 0X00010000;
        public const Int32 AW_ACTIVATE = 0X00020000;
        public const Int32 AW_SLIDE = 0X00040000;
        public const Int32 AW_BLEND = 0X00080000;
        [System.Runtime.InteropServices.DllImportAttribute("user32.dll")]
        private static extern bool AnimateWindow(IntPtr hwnd,int dwTime,int dwFlags);

7.下面為Form2窗體添加加載事件代碼，具體如下：

復制代碼代碼如下:

        private void Form2_Load(object sender, EventArgs e)
        {
            if (this.Text == "自左向右滾動窗體動畫效果")
            {
                AnimateWindow(this.Handle,2000,AW_HOR_POSITIVE);
            }
            if (this.Text == "自左向右滑動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_SLIDE+AW_HOR_POSITIVE);
            }
            if (this.Text == "自右向左滾動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_HOR_NEGATIVE);
            }
            if (this.Text == "自右向左滑動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_SLIDE + AW_HOR_NEGATIVE);
            }
            if (this.Text == "自上向下滾動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_VER_POSITIVE);
            }
            if (this.Text == "自上向下滑動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_SLIDE + AW_VER_POSITIVE);
            }
            if (this.Text == "自下向上滾動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_VER_NEGATIVE);
            }
            if (this.Text == "自下向上滑動窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_SLIDE + AW_VER_NEGATIVE);
            }
            if (this.Text == "向外擴展窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_SLIDE + AW_CENTER);
            }
            if (this.Text == "淡入窗體動畫效果")
            {
                AnimateWindow(this.Handle, 2000, AW_BLEND);
            }
        }//yinyiniao's Blog