上图演示
private void display_Click(object sender, EventArgs e)
{
Frm_Info.Instance().ShowForm();//显示窗体
}
private void close_Click(object sender, EventArgs e)
{
Frm_Info.Instance().CloseForm();//隐藏窗体
} #region 显示窗体
public void ShowForm()
{
switch (this.FormNowState)
{
case FormState.Hide:
if (this.Height <= this.Rect.Height - 192)//当窗体没有完全显示时
this.SetBounds(Rect.X, this.Top - 192, Rect.Width, this.Height 192);//使窗体不断上移
else
{
this.SetBounds(Rect.X,Rect.Y,Rect.Width,Rect.Height);//设置当前窗体的边界
}
AnimateWindow(this.Handle, 800, AW_SLIDE AW_VER_NEGATIVE);//动态显示本窗体
break;
}
}
#endregion
#region 关闭窗体
public void CloseForm()
{
AnimateWindow(this.Handle,800,AW_SLIDE AW_VER_POSITIVE AW_HIDE);//动画隐藏窗体
this.FormNowState = FormState.Hide;//设定当前窗体的状态为隐藏
}
#endregionPopup 窗体
代码语言：javascript复制 public partial class Frm_Info :System.Windows.Forms.Form
{
#region 声明的变量
private System.Drawing.Rectangle Rect;//定义一个存储矩形框的数组
private FormState InfoStyle = FormState.Hide;//定义变量为隐藏
static private Frm_Info dropDownForm = new Frm_Info();//实例化当前窗体
private static int AW_HIDE = 0x00010000; //该变量表示动画隐藏窗体
private static int AW_SLIDE = 0x00040000;//该变量表示出现滑行效果的窗体
private static int AW_VER_NEGATIVE = 0x00000008;//该变量表示从下向上开屏
private static int AW_VER_POSITIVE = 0x00000004;//该变量表示从上向下开屏
#endregion
#region 该窗体的构造方法
public Frm_Info()
{
InitializeComponent();
//初始化工作区大小
System.Drawing.Rectangle rect = System.Windows.Forms.Screen.GetWorkingArea(this);//实例化一个当前窗口的对象
this.Rect = new System.Drawing.Rectangle(rect.Right - this.Width - 1,rect.Bottom - this.Height - 1,this.Width,this.Height);//为实例化的对象创建工作区域
}
#endregion
#region 调用API函数显示窗体
[DllImportAttribute("user32.dll")]
private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);
#endregion
#region 鼠标控制图片的变化
private void pictureBox1_MouseEnter(object sender, EventArgs e)
{
pictureBox1.Image = imageList1.Images[1];//设定当鼠标进入PictureBox控件时PictureBox控件的图片
}
private void pictureBox1_MouseLeave(object sender, EventArgs e)
{
pictureBox1.Image = imageList1.Images[0]; //设定当鼠标离开PictureBox控件时PictureBox控件的图片
}
#endregion
#region 定义标识窗体移动状态的枚举值
protected enum FormState
{
Hide=0,//隐藏窗体
Display=1,//显示窗体
Displaying=2,//显示窗体中
Hiding=3 //隐藏窗体中
}
#endregion
#region 用属性标识当前状态
protected FormState FormNowState
{
get { return this.InfoStyle; } //返回窗体的当前状态
set { this.InfoStyle = value; } //设定窗体当前状态的值
}
#endregion
#region 显示窗体
public void ShowForm()
{
switch (this.FormNowState)
{
case FormState.Hide:
if (this.Height <= this.Rect.Height - 192)//当窗体没有完全显示时
this.SetBounds(Rect.X, this.Top - 192, Rect.Width, this.Height 192);//使窗体不断上移
else
{
this.SetBounds(Rect.X,Rect.Y,Rect.Width,Rect.Height);//设置当前窗体的边界
}
AnimateWindow(this.Handle, 800, AW_SLIDE AW_VER_NEGATIVE);//动态显示本窗体
break;
}
}
#endregion
#region 关闭窗体
public void CloseForm()
{
AnimateWindow(this.Handle,800,AW_SLIDE AW_VER_POSITIVE AW_HIDE);//动画隐藏窗体
this.FormNowState = FormState.Hide;//设定当前窗体的状态为隐藏
}
#endregion
#region 返回当前窗体的实例化对象
static public Frm_Info Instance()
{
return dropDownForm; //返回当前窗体的实例化对象
}
#endregion
}
