每个Control类都有一个Location属性,它是一个Point值,这个值表示控件的左上角的坐标值,利用这个坐标值,我们可以设置窗体的位置。程序核心代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace WindowsApplication1
{
public partial class Form2 : Form
{
private int screenWidth;//屏幕宽度
private int screenHeight;//屏幕高度
private bool finished = false;//是否完全显示提示窗口
public Form2()
{
InitializeComponent();
screenHeight = Screen.PrimaryScreen.Bounds.Height;
screenWidth = Screen.PrimaryScreen.Bounds.Width;
//设置提示窗口坐标在屏幕可显示区域之外
Location = new Point(screenWidth - Width, screenHeight);
}
private void timer1_Tick(object sender, EventArgs e)
{
if (!finished)//如果提示窗口没有完全显示
{
//如果提示窗口的纵坐标与提示窗口的高度之和大于屏幕高度
if (Location.Y + Height >= screenHeight)
{
Location = new Point(Location.X, Location.Y - 5);
}
}
else//如果提示窗口已经完成了显示,并且点击了确定按钮
{
//如果提示窗口没有完全从屏幕上消失
if (Location.Y < screenHeight)
{
Location = new Point(Location.X, Location.Y + 5);
}
else
{
this.Close();
}
}
}
private void btnOK_Click(object sender, EventArgs e)
{
//设置完成了显示,以便让提示控件移出屏幕可显示区域
finished = true;
}
private void Form2_Load(object sender, EventArgs e)
{
screenHeight = Screen.PrimaryScreen.Bounds.Height;
screenWidth = Screen.PrimaryScreen.Bounds.Width;
//设置提示窗口坐标在屏幕可显示区域之外
Location = new Point(screenWidth - Width, screenHeight);
}
}
}