标签：char div rop rgs scree 论坛 技术论坛 size 备忘
原文:WPF备忘录（2）WPF获取和设置鼠标位置与progressbar的使用方法一、WPF 中获取和设置鼠标位置
方法一：WPF方法
Point p = Mouse.GetPosition(e.Source as FrameworkElement); Point p = (e.Source as FrameworkElement).PointToScreen(pp);
方法二: API方法
/// <summary> /// 设置鼠标的坐标 /// </summary> /// <param name="x">横坐标</param> /// <param name="y">纵坐标</param> [DllImport("User32")] public extern static void SetCursorPos(int x, int y); public struct POINT { public int X; public int Y; public POINT(int x, int y) { this.X = x; this.Y = y; } } /// <summary> /// 获取鼠标的坐标 /// </summary> /// <param name="lpPoint">传址参数，坐标point类型</param> /// <returns>获取成功返回真</returns> [DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern bool GetCursorPos(out POINT pt); private void Window_MouseMove(object sender, MouseEventArgs e) { POINT p = new POINT(); if (GetCursorPos(out p))//API方法 { txtStat.Text = string.Format("X:{0} Y:{1}", p.X, p.Y); } }
二、 WPF中实现实时更新progressbar
实现实时更新ProgressBar貌似有很多方法，我搜索的很多资料都要用线程，觉得还是有点儿麻烦，最后在国外的技术论坛上看到
一个用代理解决的方法，下面就是我的调试过程：
private delegate void UpdateProgressBarDelegate(System.Windows.DependencyProperty dp,
Object value);
private void Process()
{
//Configure the ProgressBar
ProgressBar1.Minimum = 0;
ProgressBar1.Maximum = short.MaxValue;
ProgressBar1.Value = 0;
//Stores the value of the ProgressBar
double value = 0;
UpdateProgressBarDelegate updatePbDelegate = new UpdateProgressBarDelegate(ProgressBar1.SetValue);
//Tight Loop: Loop until the ProgressBar.Value reaches the max
do
{
value += 1;
Dispatcher.Invoke(updatePbDelegate,
System.Windows.Threading.DispatcherPriority.Background,
new object[] { ProgressBar.ValueProperty, value });
}
while (ProgressBar1.Value != ProgressBar1.Maximum);
}
前台：
<ProgressBar Grid.Row="1" Height="20" Width="200" Margin="0,4,0,0" Name="ProgressBar1" HorizontalAlignment="Center" VerticalAlignment="top" />
效果：
方法二：使用定时器
public Window1() { InitializeComponent(); DispatcherTimer _mainTimer = new DispatcherTimer(); _mainTimer.Interval = TimeSpan.FromSeconds(1); _mainTimer.Tick += new EventHandler(_mainTimer_Tick); _mainTimer.IsEnabled = true; }
void _mainTimer_Tick(object sender, EventArgs e) { if (progressBar2.Value == progressBar1.Maximum) progressBar2.Value = 0; progressBar2.Value++; }
WPF备忘录（2）WPF获取和设置鼠标位置与progressbar的使用方法
标签：char div rop rgs scree 论坛 技术论坛 size 备忘
原文地址：https://www.cnblogs.com/lonelyxmas/p/9440963.html
