using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;

namespace?kaiqidonghuan
{
????public?partial?class?Formdonghua?:?Form
????{
????????//動畫窗體調用關閉時將向上移出屏幕
????????[System.Runtime.InteropServices.DllImport（“user32“）]
????????private?static?extern?bool?AnimateWindow（IntPtr?hwnd?int?dwTime?int?dwFlags）;
????????const?int?AW_HOR_POSITIVE?=?0x0001;
????????const?int?AW_HOR_NEGATIVE?=?0x0002;
????????const?int?AW_VER_POSITIVE?=?0x0004;
????????const?int?AW_VER_NEGATIVE?=?0x0008;
????????const?int?AW_CENTER?=?0x0010;
????????const?int?AW_HIDE?=?0x10000;
????????const?int?AW_ACTIVATE?=?0x20000;
????????const?int?AW_SLIDE?=?0x40000;
????????const?int?AW_BLEND?=?0x80000;
????????//…………………………………………………………
????????public?Formdonghua（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Formdonghua_Load（object?sender?EventArgs?e）
????????{
????????????//動畫由小漸大現在取消
????????????AnimateWindow（this.Handle?1000?AW_CENTER?|?AW_ACTIVATE）;

????????????//主界面漸變設置
????????????this.jianbian.Enabled?=?true;//讓jianbian的timer值有效
????????????this.Opacity?=?0;
????????????//………………………………………………
????????}

????????private?void?jianbian_Tick（object?sender?EventArgs?e）
????????{
????????????//讓背景由0變到1
????????????if?（this.Opacity?????????????{
????????????????this.Opacity?=?this.Opacity?+?0.05;
????????????}
????????????else
????????????{
????????????????this.jianbian.Enabled?=?false;
????????????}
????????}

????????private?void?Formdonghua_FormClosing（object?sender?FormClosingEventArgs?e）
????????{//關閉時動畫
????????????AnimateWindow（this.Handle?1000?AW_SLIDE?|?AW_HIDE?|?AW_VER_NEGATIVE）;
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

-----------?---------??----------?-----??----

???????????????384646????????????????????33