QQ项目之七窗体悬浮

      using System;
      using System.Collections.Generic;
      using System.ComponentModel;
      using System.Data;
      using System.Drawing;
      using System.Text;
      using System.Windows.Forms;
      namespace MYQQ
      {
         public partial class FrmUserInformation : Form
          {
             public Point point;
             public FrmUserInformation()
              {
                  InitializeComponent();
              }
             //悬浮至好友Q名时
             private void lblChatName_MouseEnter(object sender, EventArgs e)
              {
                  lblName.Font = new Font("微软雅黑", 16F, FontStyle.Underline);
              }
             //离开好友Q名时
             private void lblChatName_MouseLeave(object sender, EventArgs e)
              {
                  lblName.Font = new Font("宋体", 9F);
              }
             //窗口加载时
             private void FrmInformation_Load(object sender, EventArgs e)
              {
                 //初始化窗口出现位置
                 this.Location = point;
                  lblName.Text = UserHelper.myNickName;
              }
             //窗体重绘时
             private void FrmUserInformation_Paint(object sender, PaintEventArgs e)
              {
                  Graphics g = e.Graphics;
                  SolidBrush sb = new SolidBrush(Color.FromArgb(100, 255, 255, 255));
                  g.FillRectangle(sb, new Rectangle(new Point(1, Height - 103), new Size(Width - 2, 80)));
              }
             #region 渐变效果
             public bool isOpend = false;
             /// <summary>
             /// 隐藏
             /// </summary>
             public new void Hide()
              {
                  timHide.Enabled = true;
              }
             public new void Show() {
                 this.Location = point;
                  timShow.Enabled = true;
              }
             #endregion
             /*
       代码思路：隐藏的时候，让窗体渐渐的隐藏，开始的时候，窗体渐渐显示;
       */
             #region 总计时器
             //计时器
             private void timShow_Tick(object sender, EventArgs e)
              {
                 base.Show();
                 if (this.Opacity <1)
                  {
                     this.Opacity = this.Opacity + 0.1;
                  }
                 if (this.Opacity == 1.0)
                  {
                      timShow.Enabled = false;
                  }
              }
             #endregion
             private void timHide_Tick(object sender, EventArgs e)
              {
                 if (this.Opacity > 0)
                  {
                     this.Opacity = this.Opacity - 0.1;
                  }
                 if (this.Opacity == 0.0)
                  {
                      timHide.Enabled = false;
                     base.Hide();
                  }
              }
          }
      }
  
 

文章来源: aaaedu.blog.csdn.net，作者：tea_year，版权归原作者所有，如需转载，请联系作者。

原文链接：aaaedu.blog.csdn.net/article/details/50486880