start.cs

delphi编的中小型管理系统

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace 中小型企业管理系统
{
	/// <summary>
	/// Start 的摘要说明。
	/// </summary>
	public class Start : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Timer timer1;
		private System.ComponentModel.IContainer components;
		private bool isAllShow = false;

		public Start()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Start));
			this.timer1 = new System.Windows.Forms.Timer(this.components);
			// 
			// timer1
			// 
			this.timer1.Interval = 40;
			this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
			// 
			// Start
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
			this.ClientSize = new System.Drawing.Size(504, 414);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
			this.MinimizeBox = false;
			this.Name = "Start";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "Start";
			this.Load += new System.EventHandler(this.Start_Load);

		}
		#endregion

		private void Start_Load(object sender, System.EventArgs e)
		{
			this.Opacity=0.0;
			this.timer1.Start();//设置窗体界面透明度为0，启动时间控件
		}

		private void timer1_Tick(object sender, System.EventArgs e)
		{
			if(isAllShow)    //窗体全部显示后，透明度从1－－－0的变化
			{
				double d = 100.0/this.timer1.Interval/100.0;
				if(this.Opacity <=0.0)
				{
					this.Opacity = 0.0;
					this.timer1.Stop();
					this.Close ();
				}
				else
				{
					this.Opacity -= d;
				}

			}
			else            //窗体的透明度从0－－1开始
			{
				double d = 100.0/this.timer1.Interval/100.0;
				if(this.Opacity >=1.0)
				{
					this.Opacity = 1.0;
					isAllShow = true;
				}
				else
				{
					this.Opacity += d;
				}

			}
		}
	}
}